MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13
SHA3-384 hash: dd25c3f468b606fb72d2a10b1c0f13c0c95c8ce3ee9de13a3429e23d163652dcd33ab5f729de87f3cfc7c08805d95ad8
SHA1 hash: ad11c08edd776a8dbdd07cf09c2f0698f46a9dad
MD5 hash: c69561188e0357b028affa4eefdf7b77
humanhash: spring-enemy-crazy-robin
File name:C69561188E0357B028AFFA4EEFDF7B77.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'400'880 bytes
First seen:2024-06-08 12:50:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'854 x AgentTesla, 19'783 x Formbook, 12'304 x SnakeKeylogger)
ssdeep 24576:wJvKzcVkyEq9DRho1jFP8ltPP01Ws7+wFPEl9ix4fpUzoQDt+egElxdqFWVCGC:gKzcCyEq9DRho/ctH01Ws74rA4RUBDHo
Threatray 340 similar samples on MalwareBazaar
TLSH T18E5512063BE08475F2FB1E3069F096705DBCFD324EA5991B53C05A691E309D1EA38BA7
TrID 40.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
31.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
7.2% (.SCR) Windows screen saver (13097/50/3)
5.8% (.EXE) Win64 Executable (generic) (10523/12/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
105.105.234.158:555

Intelligence

File Origin
# of uploads :
1
# of downloads :
459
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13.exe
Verdict:
Malicious activity
Analysis date:
2024-06-08 12:52:31 UTC
Tags:
rat njrat bladabindi remote
Link:
https://app.any.run/tasks/966f3f7c-0c12-4922-a862-d2a65b2a222b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Generic-9795615-0
Create hunting rule

Win.Packed.Generic-9795616-0
Create hunting rule

Win.Dropper.njRAT-10015886-0
Create hunting rule

Win.Dropper.Nanocore-10030076-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

Win.Trojan.Bladabindi-6192388-0
Create hunting rule

Win.Packed.Bladabindi-6917466-0
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Creating a process with a hidden window
Creating a window
Searching for synchronization primitives
DNS request
Connection attempt
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Launching the process to change network settings
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd fingerprint keylogger lolbin netsh njrat overlay packed packed rat shell32 stealer vbnet
Link:
https://www.filescan.io/uploads/666453b60bf5978c0b0d9cbd/reports/162e13b0-169f-4819-af8f-8ca0c29df280/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1098482c-63b2-4729-a48c-731f98176256
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1454023
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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)
Disables zone checking for all users
Found malware configuration
Machine Learning detection for dropped file
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
Protects its processes via BreakOnTermination flag
Snort IDS alert for network traffic
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1454023 Sample: Yvqnv3Xf80.exe Startdate: 08/06/2024 Architecture: WINDOWS Score: 100 35 x555hd.ddns.net 2->35 43 Snort IDS alert for network traffic 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 51 11 other signatures 2->51 9 Yvqnv3Xf80.exe 1 5 2->9         started        signatures3 49 Uses dynamic DNS services 35->49 process4 file5 31 C:\Users\user\AppData\Roaming\server.exe, PE32 9->31 dropped 33 C:\Users\user\AppData\...\Yvqnv3Xf80.exe.log, ASCII 9->33 dropped 12 server.exe 1 5 9->12         started        process6 dnsIp7 37 x555hd.ddns.net 105.105.234.158, 49731, 555 ALGTEL-ASDZ Algeria 12->37 53 Antivirus detection for dropped file 12->53 55 Multi AV Scanner detection for dropped file 12->55 57 Protects its processes via BreakOnTermination flag 12->57 59 4 other signatures 12->59 16 cmd.exe 1 12->16         started        19 netsh.exe 2 12->19         started        21 netsh.exe 2 12->21         started        signatures8 process9 signatures10 39 Uses ping.exe to sleep 16->39 41 Uses ping.exe to check the status of other devices and networks 16->41 23 conhost.exe 16->23         started        25 PING.EXE 1 16->25         started        27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13
Detection:
njrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2024-05-28 20:00:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
182
AV detection:
36 of 38 (94.74%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qvnbc7itzhogolhfquo4spwok4wsfw7faswn62z52iuqh2l27yjq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
7746fe1edf7d4870afa63058d81a2392176c6a869114da74bf2d25e3f12e81d0
njrat
798e0870efbf28e90fb48671e8ef55bb9b442602cc505522a991153d79f2bfaf
njrat
7dcaef0a3442fdb263af59d4af0cd67cc08f61c04db6bdbfaf6609b478a52e1c
njrat
96553ba738a8e268293c58acade34423b565bea52c0f37a6dfeecc6ee8b4c5b6
njrat
ccd5489042e837a771f04a06fc5296535c2fff338e4d7b6d0585f446f2b0ba6b
njrat
fa448e36486c632887c7c71e09596263ecefd1531f7977c7bb08471f08be8275
njrat
+ 330 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion trojan
Link:
https://tria.ge/reports/240608-p3gbmacf89/
Behaviour
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
x555hd.ddns.net:555
Unpacked files
SH256 hash:
42d631191a157b2183fcf17caa10f462954eee3e8e10101b06c9b5953f786c90
MD5 hash:
c77c8e87c6c37bad992bf709923c5840
SHA1 hash:
8479468f82e3dc5fcf0b446fa76806e4578c9136
Link:
https://www.unpac.me/results/0d06cdda-47be-45df-a7e7-07fd4da0bc3c/
SH256 hash:
855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13
MD5 hash:
c69561188e0357b028affa4eefdf7b77
SHA1 hash:
ad11c08edd776a8dbdd07cf09c2f0698f46a9dad
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Njrat
Create hunting rule
MALWARE_Win_NjRAT
Create hunting rule
Link:
https://www.unpac.me/results/0d06cdda-47be-45df-a7e7-07fd4da0bc3c/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/855a117d13c9/report/overview.html
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/855a117d13c9dc672ce5851dc93ece572d22dbe504acdf6b3dd22903e97afe13

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_LightDefender_Njrat_Rule
Create hunting rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_bytecodes_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
Rule name:win_njrat_strings_oct_2023
Create hunting rule
Author:Matthew @ Embee_Research
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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments