MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec07a4c3d4781b76afa30c9b8031f16ebac0be61ce71af0987c9ad48358ab6cc. 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: 16


Intelligence 16 IOCs YARA 14 File information Comments

SHA256 hash: ec07a4c3d4781b76afa30c9b8031f16ebac0be61ce71af0987c9ad48358ab6cc
SHA3-384 hash: 9064658d2b986da858bd0295c1cda366fdd5aedabbd3768dcb879a4b052a38006188793db30f6f266aae8ed822029f88
SHA1 hash: 04813bf4ad8f9570fc0bf84ee24195d65f67c1cc
MD5 hash: 6a1c796e2a8c57d27e813e215cce2938
humanhash: fourteen-quebec-romeo-jupiter
File name:6a1c796e2a8c57d27e813e215cce2938.exe
Download: download sample
Signature njrat
File size:95'232 bytes
First seen:2023-02-09 14:30:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'653 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 1536:/ai1GkeUqZJO5QNSimjEwzGi1dDSDkgS:/aNUqZJOOAOi1dsd
Threatray 1'564 similar samples on MalwareBazaar
TLSH T14D93E84977E56524E1BF56F79471F2404E34B48B1602E39E48F219AA0B33AC44F89FEB
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
18.192.93.86:15537

Intelligence


File Origin
# of uploads :
1
# of downloads :
232
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
6a1c796e2a8c57d27e813e215cce2938.exe
Verdict:
Malicious activity
Analysis date:
2023-02-09 14:32:06 UTC
Tags:
trojan rat njrat bladabindi

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% directory
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for analyzed file
Creating a file in the Program Files subdirectories
Creating a file
Launching the process to change network settings
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Launching the process to change the firewall settings
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm bladabindi cmd.exe fingerprint fingerprint greyware njrat packed rat rundll32.exe stealer update.exe winnti
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.
Result
Threat name:
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to spread to USB devices (.Net source)
Disables the Windows task manager (taskmgr)
Drops PE files to the startup folder
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Snort IDS alert for network traffic
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 803143 Sample: zr2sA1TwJS.exe Startdate: 09/02/2023 Architecture: WINDOWS Score: 100 35 2.tcp.eu.ngrok.io 2->35 43 Snort IDS alert for network traffic 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for dropped file 2->47 49 7 other signatures 2->49 8 zr2sA1TwJS.exe 2 22 2->8         started        13 Microsoft Corporation.exe 3 2->13         started        signatures3 process4 dnsIp5 37 18.156.13.209, 15537, 49749 AMAZON-02US United States 8->37 39 18.157.68.73, 15537, 49724, 49727 AMAZON-02US United States 8->39 41 5 other IPs or domains 8->41 27 C:\Windows\SysWOW64xplower.exe, PE32 8->27 dropped 29 C:\Users\user\Favoritesxplower.exe, PE32 8->29 dropped 31 b7a01b2032e866c9fb...fWindows Update.exe, PE32 8->31 dropped 33 8 other malicious files 8->33 dropped 51 Drops PE files to the startup folder 8->51 53 Uses netsh to modify the Windows network and firewall settings 8->53 55 Modifies the windows firewall 8->55 57 Disables the Windows task manager (taskmgr) 8->57 15 netsh.exe 3 8->15         started        17 netsh.exe 3 8->17         started        19 netsh.exe 3 8->19         started        file6 signatures7 process8 process9 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started       
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2023-02-06 20:52:00 UTC
File Type:
PE (.Net Exe)
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:njrat botnet:illusions evasion
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Drops file in System32 directory
Drops startup file
Disables Task Manager via registry modification
Modifies Windows Firewall
Malware Config
C2 Extraction:
FRANSESCOi50Y3AuZXUubmdyb2suaW8Strik:MTU1Mzc=
Unpacked files
SH256 hash:
af8a9375d80423600d60db257d0191b13a6e5e59bd3ac31c87f9f8aefba19450
MD5 hash:
4e724c4658fc1aa16cb0252422e09f92
SHA1 hash:
95a59e42da313cf75b58b7f871192d3e0aa509cc
SH256 hash:
a210348c824e2b4552ec4e7e2ffede13ac0f7a3e9cb6e003eda2da71338be06f
MD5 hash:
2810a01371d61bb928bad4221f77800f
SHA1 hash:
f59988a2a49adcb5920609704ef66dec0e19a05e
SH256 hash:
ec07a4c3d4781b76afa30c9b8031f16ebac0be61ce71af0987c9ad48358ab6cc
MD5 hash:
6a1c796e2a8c57d27e813e215cce2938
SHA1 hash:
04813bf4ad8f9570fc0bf84ee24195d65f67c1cc
Please note that we are no longer able to provide a coverage score for Virus Total.

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:CN_disclosed_20180208_c
Author:Florian Roth (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:malware_Njrat_strings
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:MAL_njrat
Author:SECUINFRA Falcon Team
Rule name:MAL_Winnti_Sample_May18_1
Author:Florian Roth (Nextron Systems)
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:pe_imphash
Rule name:Skystars_LightDefender_Njrat_Rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_30f3c220

File information


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

Comments