MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 954988371d8cebea1a69f2c1a47d50b13b9eb82630e5fbc5069105bd12b7b541. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 954988371d8cebea1a69f2c1a47d50b13b9eb82630e5fbc5069105bd12b7b541
SHA3-384 hash: 22822b7d78801bf9690809bfa76a3b3e2beaf5d4fb405d81497b47c8ffa805857b3f033fe1550e88947263995152cc3c
SHA1 hash: a6902a8745fccbf86706ea24196c77af4e4bb49e
MD5 hash: 3efecc6d6ddfb3d62fb8e9b6496287d9
humanhash: whiskey-leopard-spaghetti-low
File name:3efecc6d6ddfb3d62fb8e9b6496287d9
Download: download sample
Signature njrat
Create hunting rule
File size:37'144 bytes
First seen:2021-06-21 02:50:51 UTC
Last seen:2021-06-21 03:36:00 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:lSDJ7PAyfdIOqLMQCJ8ndxQDqMmJMBsMhK:lAA2ZqLMQg8nUWms
Threatray 894 similar samples on MalwareBazaar
TLSH AEF2B5AA20507158D6E349742C66EC743B28A7325881D14EF472874CCF82AFA79FDDDE
Reporter zbetcheckin
Tags:32 exe NjRAT signed

Code Signing Certificate

Organisation:13NYn0aM
Issuer:13NYn0aM
Algorithm:sha256WithRSAEncryption
Valid from:2021-06-20T19:31:01Z
Valid to:2022-06-20T19:31:01Z
Serial number: 206c26f59d63c7ec997a29fded068696
Thumbprint Algorithm:SHA256
Thumbprint: 8d1cb5cbf2cb02c3cf1913545201bc9b0ddc3f960a2f047619350f91ff9e395d
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
256
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3efecc6d6ddfb3d62fb8e9b6496287d9
Verdict:
Malicious activity
Analysis date:
2021-06-21 02:54:09 UTC
Tags:
trojan
Link:
https://app.any.run/tasks/6c5a44e9-694d-421b-9f89-39e649a97171

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46522204.16663.1524.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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c636a831-080e-43ee-b890-b6b32db6437f
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/805024
Signature
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
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 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 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: 437435 Sample: qY1XuAP5De Startdate: 21/06/2021 Architecture: WINDOWS Score: 100 81 Malicious sample detected (through community Yara rule) 2->81 83 Multi AV Scanner detection for dropped file 2->83 85 Sigma detected: Powershell adding suspicious path to exclusion list 2->85 87 5 other signatures 2->87 7 qY1XuAP5De.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 65 apdocroto.gq 104.21.14.60, 49717, 49726, 49734 CLOUDFLARENETUS United States 7->65 53 C:\Users\...\57w10427ebbdUHA4f4f4J20y9.exe, PE32 7->53 dropped 55 C:\Program Files\Common Files\...\svchost.exe, PE32 7->55 dropped 57 C:\Users\user\AppData\...\lnhgf34y.newcfg, UTF-8 7->57 dropped 63 3 other files (2 malicious) 7->63 dropped 91 Drops PE files to the startup folder 7->91 93 Adds a directory exclusion to Windows Defender 7->93 95 Hides threads from debuggers 7->95 97 Drops PE files with benign system names 7->97 18 qY1XuAP5De.exe 7->18         started        21 WerFault.exe 7->21         started        24 57w10427ebbdUHA4f4f4J20y9.exe 7->24         started        29 10 other processes 7->29 59 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 12->59 dropped 99 System process connects to network (likely due to code injection or exploit) 12->99 101 Changes security center settings (notifications, updates, antivirus, firewall) 14->101 67 172.67.158.27, 49735, 49738, 80 CLOUDFLARENETUS United States 16->67 69 127.0.0.1 unknown unknown 16->69 61 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 16->61 dropped 27 AdvancedRun.exe 16->27         started        file5 signatures6 process7 dnsIp8 43 C:\ProgramData\svchost.exe, PE32 18->43 dropped 45 C:\Users\user\AppData\...\qY1XuAP5De.exe.log, ASCII 18->45 dropped 47 C:\ProgramData\svchost.exe:Zone.Identifier, ASCII 18->47 dropped 31 svchost.exe 18->31         started        49 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 21->49 dropped 89 Tries to evade analysis by execution special instruction which cause usermode exception 21->89 71 apdocroto.gq 24->71 51 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 24->51 dropped 73 192.168.2.1 unknown unknown 29->73 35 AdvancedRun.exe 29->35         started        37 conhost.exe 29->37         started        39 conhost.exe 29->39         started        41 8 other processes 29->41 file9 signatures10 process11 dnsIp12 75 apdocroto.gq 31->75 77 System process connects to network (likely due to code injection or exploit) 31->77 79 Multi AV Scanner detection for dropped file 31->79 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/954988371d8cebea1a69f2c1a47d50b13b9eb82630e5fbc5069105bd12b7b541/
Threat name:
ByteCode-MSIL.Downloader.Foold
Create hunting rule
Status:
Malicious
First seen:
2021-06-21 00:46:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
16 of 46 (34.78%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sveyqny5rtv6ugtj6la2i7kqwe5z5obggds7xrigsec32evxwvaq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
02df79a95ca91898b809871d3e9efa617146cadd6fb57a97056fb9b6622f62f4
njrat
31a51475efa61899f9136416538b6c0b008131dd8e7cb75aadcd306c66afcb8a
njrat
6427f0361a3101a575c54575674ca52a241b8b295954609ce2dd5d5200c0b3a8
njrat
918f9caeebb7bb5faea1014a288eb2010e07100dd5303aae002368c50dac370f
njrat
9fc7649eec8fc91ad58d27badae903fce1dff83804a830b3606db194c232d653
njrat
a42ec09d5fcab03929ce3d0240cbc14f104c357c930fb2843521071df4827366
njrat
ac937327e25a96c0b3c79dfe0e8467444c87691910e0d90d89c81c9f830b0b02
njrat
b748c37f14082e151acc4c6677f19cdcd2cd26b6a8c7d6e768a090e8aecbb698
njrat
dbfb2fb740f0e4b05acc6074c798e65a6aa5ff8c9a8b7bed8f640aa1cd4153c7
njrat
dca1d9c848c823c2a06e7e4108c0b89c91b4f08a0909c91e537a060eba25b788
njrat
+ 884 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence trojan
Link:
https://tria.ge/reports/210621-mtxbaczr1a/
Behaviour
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
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
UAC bypass
Windows security bypass
Unpacked files
SH256 hash:
954988371d8cebea1a69f2c1a47d50b13b9eb82630e5fbc5069105bd12b7b541
MD5 hash:
3efecc6d6ddfb3d62fb8e9b6496287d9
SHA1 hash:
a6902a8745fccbf86706ea24196c77af4e4bb49e
Link:
https://www.unpac.me/results/f13b804f-d486-40e8-bc03-81dbfebc90ad/
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/954988371d8cebea1a69f2c1a47d50b13b9eb82630e5fbc5069105bd12b7b541

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

njrat

Executable exe 954988371d8cebea1a69f2c1a47d50b13b9eb82630e5fbc5069105bd12b7b541

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1380445/
  
URLhaus
https://urlhaus.abuse.ch/url/1383989/

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