MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017. 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: 7


Intelligence 7 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017
SHA3-384 hash: 7aef6b4d5d7d8a3a6bf01a8654e396a069c742838a15ed0b9116b9249ece20e1b25876deef3073688b914b750c400ea6
SHA1 hash: de2621c351f73c8192661b5bcfd8f9f05a71bb03
MD5 hash: 7d50a5018adaa8fea9769a1770c8ebc4
humanhash: papa-zebra-iowa-winner
File name:7d50a5018adaa8fea9769a1770c8ebc4
Download: download sample
Signature njrat
Create hunting rule
File size:36'992 bytes
First seen:2021-06-19 20:54:43 UTC
Last seen:2021-06-19 21:36:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:ldwewzyRjyt+AJPKbZt/MJQuSdcVZybK48BVp7Gj5k3y/ZdhF:/vSuy4AJPKb7rXdMZyh8Bn7GjeY9
Threatray 311 similar samples on MalwareBazaar
TLSH 8CF2E79A1154B659D9E34AB12C51EC743B28AB706850D00EF462924CCF837FF68ECEDE
Reporter zbetcheckin
Tags:32 exe NjRAT signed

Code Signing Certificate

Organisation:U3c2dB5f982bnM6g42fdaZw
Issuer:U3c2dB5f982bnM6g42fdaZw
Algorithm:sha256WithRSAEncryption
Valid from:2021-06-18T10:48:12Z
Valid to:2022-06-18T10:48:12Z
Serial number: 1c523de3f7cbf6e88b06f836b52d3e3c
Thumbprint Algorithm:SHA256
Thumbprint: 9b9f15059867eb46c6b4571fbb14d4030e0d90bd1a3c27a1f19415b9fe6ca057
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
304
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7d50a5018adaa8fea9769a1770c8ebc4
Verdict:
Malicious activity
Analysis date:
2021-06-19 20:56:52 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/20a8fc4a-0541-403a-9f12-414228e5c696

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/167075/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.18747.25474.8521.UNOFFICIAL
Create hunting rule

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/6e80df05-4b40-4bde-b247-35d1185a340a
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/804775
Signature
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops PE files with benign system names
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell adding suspicious path to exclusion list
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to evade analysis by execution special instruction which cause usermode exception
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 437186 Sample: X27m7TDCv7 Startdate: 19/06/2021 Architecture: WINDOWS Score: 100 75 Multi AV Scanner detection for domain / URL 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Multi AV Scanner detection for dropped file 2->79 81 7 other signatures 2->81 7 X27m7TDCv7.exe 24 18 2->7         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 11 other processes 2->16 process3 dnsIp4 63 apdocroto.gq 104.21.14.60, 49718, 49729, 49736 CLOUDFLARENETUS United States 7->63 51 C:\Windows\Resources\Themes\...\svchost.exe, PE32 7->51 dropped 53 C:\Users\user\...\cM6zS469cb47dL6y80b0W1.exe, PE32 7->53 dropped 55 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 7->55 dropped 57 3 other files (2 malicious) 7->57 dropped 83 Drops PE files to the startup folder 7->83 85 Creates an autostart registry key pointing to binary in C:\Windows 7->85 87 Adds a directory exclusion to Windows Defender 7->87 95 3 other signatures 7->95 18 X27m7TDCv7.exe 7->18         started        21 cM6zS469cb47dL6y80b0W1.exe 7->21         started        24 AdvancedRun.exe 1 7->24         started        29 9 other processes 7->29 89 Multi AV Scanner detection for dropped file 12->89 91 System process connects to network (likely due to code injection or exploit) 14->91 65 172.67.158.27, 49734, 49737, 80 CLOUDFLARENETUS United States 16->65 67 127.0.0.1 unknown unknown 16->67 93 Changes security center settings (notifications, updates, antivirus, firewall) 16->93 26 WerFault.exe 16->26         started        file5 signatures6 process7 dnsIp8 45 C:\ProgramData\svchost.exe, PE32 18->45 dropped 47 C:\Users\user\AppData\...\X27m7TDCv7.exe.log, ASCII 18->47 dropped 49 C:\ProgramData\svchost.exe:Zone.Identifier, ASCII 18->49 dropped 31 svchost.exe 18->31         started        59 apdocroto.gq 21->59 61 192.168.2.1 unknown unknown 24->61 35 AdvancedRun.exe 24->35         started        97 Tries to evade analysis by execution special instruction which cause usermode exception 26->97 37 conhost.exe 29->37         started        39 conhost.exe 29->39         started        41 conhost.exe 29->41         started        43 7 other processes 29->43 file9 signatures10 process11 dnsIp12 69 apdocroto.gq 31->69 71 System process connects to network (likely due to code injection or exploit) 31->71 73 Multi AV Scanner detection for dropped file 31->73 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2021-06-18 15:49:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
18 of 46 (39.13%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uol2l7pi55r2gl3ym42g525l2sgr3xykmdanswv7imoz2lcr4alq._file
Verdict:
malicious
Similar samples:
0db50b639d859d3ddf9aa74f96d12f7ecb189a0b3006a7ed1cfd73edbc34d220
njrat
2e10edfbe7c4a7c9220db55d3c6f921262366908277a5483ff0faf5579e194f4
njrat
3f0fa5c8ebb2640afc948bfd5c8bb0ba644222b3bc15c095085d718843d59915
njrat
78baec19444d923fde30977dacb85fada9247b9e3ae150f32a1137e7fc0b8dfb
njrat
9c6abdf1e5ff719e261ea153555b981cd907ba5f79f50943d679d59967eba445
njrat
ae6d4b4b89654fbd35c69c05a85fd4a2b84edd7091ffe372f4ba7115c2b8fbf8
njrat
c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
njrat
c7ce97bf28191b9f81871421f7f6fea0c86fca516d3e8706e16c0f07e9e7ed5b
njrat
ca146513d9ec6ec60b81b20fd9aa2f262c54d447e8361417c3c4b7678e51e6a5
njrat
e9573722d616d444c71e82f1ac6973921f3c942af4403760e0292b3ebf9159b0
njrat
+ 301 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion trojan
Link:
https://tria.ge/reports/210619-mm7ssatpa2/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Drops startup file
Loads dropped DLL
Windows security modification
Executes dropped EXE
Modifies Windows Firewall
Nirsoft
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Unpacked files
SH256 hash:
a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017
MD5 hash:
7d50a5018adaa8fea9769a1770c8ebc4
SHA1 hash:
de2621c351f73c8192661b5bcfd8f9f05a71bb03
Link:
https://www.unpac.me/results/ed8d3324-95dd-4635-a031-44b93b6fede0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:pe_imphash
Create hunting rule
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:RAT_njRat
Create hunting rule
Author:Kevin Breen <kevin@techanarchy.net>
Description:Detects njRAT
Reference:http://malwareconfig.com/stats/njRat
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

njrat

Executable exe a397a5fde8ef63a32f7867346eebabd48d1ddf0a60c0d95abf431d9d2c51e017

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/167075/
  
URLhaus
https://urlhaus.abuse.ch/url/1380445/

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