MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


njrat


Vendor detections: 17


Intelligence 17 IOCs YARA 37 File information Comments
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SHA256 hash: b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c
SHA3-384 hash: f3f3d0f6e0b8ab2df27910dcd472ba239e62e9026d039d6d7dc596b6cca252cfa034eeebd576b2ec748113d6a68b76a5
SHA1 hash: a79a8b9c0092266e0388a6dc9941667ef208b233
MD5 hash: 3c6fd2d056ed6d09b0ac9d34de202353
humanhash: kilo-early-rugby-beryllium
File name:3c6fd2d056ed6d09b0ac9d34de202353.exe
Download: download sample
Signature njrat
Create hunting rule
File size:8'773'278 bytes
First seen:2024-06-16 05:20:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c9adc83b45e363b21cd6b11b5da0501f (82 x ArkeiStealer, 60 x RecordBreaker, 46 x RedLineStealer)
ssdeep 196608:jth2KKRkb+gKVAECO4GZM7b2qiTzRUxgVkdMOwEvz2VcPxgC:z2rk+ggAEp/CbQKxgcM5ymcpgC
Threatray 44 similar samples on MalwareBazaar
TLSH T101963361F2E1C2F6C19336B1DC0572F1A4C9AE04EE781C8F6E99BC64787231A5671D8E
TrID 93.0% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58)
1.9% (.EXE) Win32 Executable Delphi generic (14182/79/4)
1.8% (.SCR) Windows screen saver (13097/50/3)
1.3% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
0.6% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 13699696a28ad021 (3 x njrat, 1 x Amadey, 1 x NetWire)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
192.227.228.34:1124

Intelligence

File Origin
# of uploads :
1
# of downloads :
478
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c.exe
Verdict:
Malicious activity
Analysis date:
2024-06-16 05:23:42 UTC
Tags:
rat asyncrat remote quasar njrat bladabindi evasion
Link:
https://app.any.run/tasks/a4ad6923-42ab-4229-b5d6-efa943d1310c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Nanocore-9189507-1
Create hunting rule

Win.Malware.Score-6915874-0
Create hunting rule

Win.Malware.Score-6916175-0
Create hunting rule

SecuriteInfo.com.PSW.Generic8.ISF.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666e777d0f8138dd4ea8d2b4win7simulatehigh_evasion
Tags:
Encryption Execution Network Static Malware
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Delayed reading of the file
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file
Creating a file in the Program Files subdirectories
Modifying a system file
Creating a process from a recently created file
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Connection attempt to an infection source
Sending a TCP request to an infection source
Launching the process to change the firewall settings
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
borland_delphi fingerprint installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/666e764021581a92819d4c12/reports/4ab1e819-5f1b-4428-82c0-b0806e787a81/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Mimikatz
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9aa2a0e4-3c7f-4b46-9c9a-1dcaf5cd5030
Result
Threat name:
AsyncRAT, DcRat, Njrat, Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1457935
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates multiple autostart registry keys
Drops PE files to the user root directory
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected DcRat
Yara detected Generic Downloader
Yara detected Njrat
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1457935 Sample: HuDhbv5Ocy.exe Startdate: 16/06/2024 Architecture: WINDOWS Score: 100 73 4Mekey.myftp.biz 2->73 75 ipwho.is 2->75 81 Snort IDS alert for network traffic 2->81 83 Multi AV Scanner detection for domain / URL 2->83 85 Found malware configuration 2->85 87 14 other signatures 2->87 10 HuDhbv5Ocy.exe 14 13 2->10         started        13 Id990.exe 2->13         started        16 Ijr314.exe 2->16         started        18 4 other processes 2->18 signatures3 process4 file5 65 C:\Users\user\AppData\Roaming\IwUp238.exe, PE32+ 10->65 dropped 67 C:\Users\user\AppData\Roaming\Id990.exe, PE32+ 10->67 dropped 69 C:\Users\user\AppData\Local\Temp\Ijr314.exe, PE32+ 10->69 dropped 71 2 other malicious files 10->71 dropped 20 Ijr314.exe 1 2 10->20         started        24 IwUp238.exe 1 2 10->24         started        26 Id990.exe 1 2 10->26         started        28 Set-up.exe 1 11 10->28         started        113 Antivirus detection for dropped file 13->113 115 Multi AV Scanner detection for dropped file 13->115 117 Writes to foreign memory regions 13->117 30 InstallUtil.exe 13->30         started        33 conhost.exe 13->33         started        119 Allocates memory in foreign processes 16->119 121 Sample uses process hollowing technique 16->121 123 Injects a PE file into a foreign processes 16->123 37 2 other processes 16->37 35 conhost.exe 18->35         started        39 7 other processes 18->39 signatures6 process7 dnsIp8 59 C:\Users\user\Ijr314.exe, PE32+ 20->59 dropped 89 Antivirus detection for dropped file 20->89 91 Multi AV Scanner detection for dropped file 20->91 93 Creates multiple autostart registry keys 20->93 107 2 other signatures 20->107 41 jsc.exe 1 2 20->41         started        44 conhost.exe 20->44         started        61 C:\Users\user\IwUp238.exe, PE32+ 24->61 dropped 95 Drops PE files to the user root directory 24->95 97 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 24->97 99 Writes to foreign memory regions 24->99 46 RegAsm.exe 1 2 24->46         started        49 conhost.exe 24->49         started        63 C:\Users\user\Id990.exe, PE32+ 26->63 dropped 101 Sample uses process hollowing technique 26->101 51 conhost.exe 26->51         started        53 InstallUtil.exe 26->53         started        77 ipwho.is 195.201.57.90, 443, 49741 HETZNER-ASDE Germany 30->77 103 Hides that the sample has been downloaded from the Internet (zone.identifier) 30->103 105 Installs a global keyboard hook 30->105 file9 signatures10 process11 dnsIp12 109 Uses netsh to modify the Windows network and firewall settings 41->109 111 Modifies the windows firewall 41->111 55 netsh.exe 2 41->55         started        79 4Mekey.myftp.biz 192.227.228.34, 1124, 4782, 49731 AS-COLOCROSSINGUS United States 46->79 signatures13 process14 process15 57 conhost.exe 55->57         started       
Score:
33%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c/
Threat name:
Win32.Trojan.AmsiBypass
Create hunting rule
Status:
Malicious
First seen:
2024-06-11 17:13:53 UTC
File Type:
PE (Exe)
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wayktkvcpprmtw3mb4k6svrgajpvcqyem2ytugljbcy6yqlscyga._file
Verdict:
malicious
Similar samples:
1615d4396467f0c5db3061b4b438a518da24667e8117fb65d917ae6048bbfa31
njrat
4b2e37c9809a2ffa234e8eb9fa137fb2188c773a0cf2271514d617efb947d566
njrat
5302c416b0abd845fe3145f910e82440588c11219940fe89fd68722260a9b508
njrat
8d48681090810cf096230ac8e6900c4cdb22d9872622ba55f9d70c1c1ca32956
njrat
+ 34 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:njrat family:quasar botnet:05kan24 discovery evasion persistence rat spyware trojan
Link:
https://tria.ge/reports/240616-f1zwhsvfkk/
Behaviour
Modifies Internet Explorer settings
Modifies system certificate store
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
AsyncRat
Quasar RAT
Quasar payload
njRAT/Bladabindi
Malware Config
C2 Extraction:
4Mekey.myftp.biz:8848
4Mekey.myftp.biz:4782
4mekey.myftp.biz:1124
Unpacked files
SH256 hash:
fa7c68a5879015fccbf455ceb62ca2da704219f8129bb9ebf36cdfe4d3419b44
MD5 hash:
1620bc6ba7bb1d7eb96ce0a0d7163cea
SHA1 hash:
5ad5012498b57308de88325bb3832793117932de
Link:
https://www.unpac.me/results/5113e649-5899-4d4b-be13-b31b885463ef/
SH256 hash:
b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c
MD5 hash:
3c6fd2d056ed6d09b0ac9d34de202353
SHA1 hash:
a79a8b9c0092266e0388a6dc9941667ef208b233
Detections:
check_installed_software
Create hunting rule
Link:
https://www.unpac.me/results/5113e649-5899-4d4b-be13-b31b885463ef/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:BLOWFISH_Constants
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Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:dcrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security
Rule name:Windows_Generic_Threat_ce98c4bc
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_DCRat_1aeea1ac
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

The table below shows additional information about this malware sample such as delivery method and external references.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User Authorizationadvapi32.dll::AllocateAndInitializeSid
advapi32.dll::EqualSid
advapi32.dll::FreeSid
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
MULTIMEDIA_APICan Play Multimediagdi32.dll::StretchDIBits
winmm.dll::timeKillEvent
winmm.dll::timeSetEvent
SECURITY_BASE_APIUses Security Base APIadvapi32.dll::AdjustTokenPrivileges
advapi32.dll::GetTokenInformation
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteExA
shell32.dll::ShellExecuteA
shell32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and Threadsadvapi32.dll::OpenProcessToken
kernel32.dll::OpenProcess
advapi32.dll::OpenThreadToken
kernel32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIkernel32.dll::TerminateProcess
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programskernel32.dll::WinExec
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateDirectoryA
kernel32.dll::CreateFileA
kernel32.dll::DeleteFileA
kernel32.dll::GetWindowsDirectoryA
kernel32.dll::GetSystemDirectoryA
kernel32.dll::GetFileAttributesA
WIN_BASE_USER_APIRetrieves Account Informationkernel32.dll::GetComputerNameA
advapi32.dll::GetUserNameA
advapi32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegCreateKeyExA
advapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryInfoKeyA
advapi32.dll::RegQueryValueExA
advapi32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::CreateWindowExA

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