MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b31381ee95538f03523a9f234b2d8f77a599d30872d8180aa53cf89d2b9f6030. 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 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b31381ee95538f03523a9f234b2d8f77a599d30872d8180aa53cf89d2b9f6030
SHA3-384 hash: d945ed5dc834f621f7c76407d23016403eb233543baa33f1d4a51c56947b515d0a2dee51a5da61d4f119e39c08bda814
SHA1 hash: bcc480890279bbed4a6641563fc143b9e6d17923
MD5 hash: 1b660c6414138dbec252594b849c4226
humanhash: maryland-florida-hotel-blue
File name:B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'040'896 bytes
First seen:2022-10-23 09:51:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'833 x AgentTesla, 19'770 x Formbook, 12'296 x SnakeKeylogger)
ssdeep 12288:CkNjmOgx11cQ/JeL6hHIbiWkNOMNwHWgmrzsJX:CkxmD9reL6ZImWKOerrzE
Threatray 3'251 similar samples on MalwareBazaar
TLSH T1672581072D943A61D03242BB20C8C17E4BA98E4DFDEAD5476ECDBCDBF5B1F144692262
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 4c33d8d4d4d8324c (40 x AgentTesla, 23 x RedLineStealer, 15 x RemcosRAT)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
194.5.98.151:4030

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
194.5.98.151:4030 https://threatfox.abuse.ch/ioc/916004/

Intelligence

File Origin
# of uploads :
1
# of downloads :
286
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe
Verdict:
Malicious activity
Analysis date:
2022-10-23 09:53:31 UTC
Tags:
rat njrat bladabindi trojan
Link:
https://app.any.run/tasks/ec584493-4cc8-4b61-b509-addea4422d3e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
njRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/322914/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.42577.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bladabindi njrat packed remcos
Link:
https://www.filescan.io/uploads/63550ec3339362a6061b5055/reports/90c9a55b-d885-41f8-b727-5c62a9c40d4b/overview
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/aee5495b-dafd-4bf4-9c91-1132e6267c88
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1095824
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 728465 Sample: B31381EE95538F03523A9F234B2... Startdate: 23/10/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Multi AV Scanner detection for domain / URL 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 12 other signatures 2->42 8 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 3 2->8         started        12 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 2 2->12         started        14 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 2 2->14         started        16 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 2 2->16         started        process3 file4 32 B31381EE95538F0352...99D30872D81.exe.log, ASCII 8->32 dropped 46 Uses netsh to modify the Windows network and firewall settings 8->46 48 Modifies the windows firewall 8->48 18 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 5 2 8->18         started        22 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 12->22         started        24 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 14->24         started        26 B31381EE95538F03523A9F234B2D8F77A599D30872D81.exe 16->26         started        signatures5 process6 dnsIp7 34 percolysrl2.ddns.net 194.5.98.151, 4030, 49696 DANILENKODE Netherlands 18->34 44 Creates autostart registry keys with suspicious names 18->44 28 netsh.exe 3 18->28         started        signatures8 process9 process10 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b31381ee95538f03523a9f234b2d8f77a599d30872d8180aa53cf89d2b9f6030/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-09-08 08:25:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
34
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wmjyd3uvkohqgur2t4ruwlmpo6sztuyiolmbqcvfht4j2k47maya._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
njrat
4d443d374a1941217335cca576c402e756c1ac5f56f6e0e33868ddef4672c82c
njrat
4f7ee2b1be709d2dfcfb894323ac4b6a3f3b0482c646d49b051769a6e3785239
njrat
a1912487964fbfa6a9004a0889bde004a7b3d007e98706b79688bbb6229af557
njrat
bbbd41df9ee8363af5927a1b8f8b6d373edc69b34069c3a1ff0e5696138a290d
njrat
bc341eccbdfecf1616134d92035e90b0622ec6731e5c5f74418f00ce3033a689
njrat
d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab
njrat
e1c12e80d4fe90ebf246356de9336ba64ce4263eaf2525c27412d534b8a89b29
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
+ 3'241 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:punk12 evasion persistence trojan
Link:
https://tria.ge/reports/221023-lv3ccahgar/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Modifies Windows Firewall
njRAT/Bladabindi
Malware Config
C2 Extraction:
percolysrl2.ddns.net:4030
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/365719bc-a48c-407f-bd5a-92b8e44f513e
Unpacked files
SH256 hash:
52306cfce028be0d88223578f959bf5bae394c1c19c4a6fbf9ebaa56de46a93d
MD5 hash:
0bddf6cda26eb2341b30fa123173a677
SHA1 hash:
fa277e741a0a1087f6df238871f7b36d8de54443
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/e90de74d-50fb-4e36-8722-6a3432403f0f/
Parent samples :
0757753fe3d0bf8e6784069418d8d3c59e8ff49a99585f878ddb75bbc1038926
73da7b715b1ce442e42655c2b995934578137f367010aa2253346a7d49aed152
b31381ee95538f03523a9f234b2d8f77a599d30872d8180aa53cf89d2b9f6030
SH256 hash:
9dc23c3ec76b39b01ffae38c92f81dcfde77de8ddcb2e1d8b78a2d1048f3f311
MD5 hash:
379d34b50fc073aea48d650955d8a4f8
SHA1 hash:
b751ca0be4ec91f79fd1b31fb78a5af4505c3bbf
Link:
https://www.unpac.me/results/e90de74d-50fb-4e36-8722-6a3432403f0f/
SH256 hash:
8b533ffaed24e0351e489b14aaac6960b731db189ce7ed0c0c02d4a546af8e63
MD5 hash:
dbc7be56e6e32349315170599c8b333f
SHA1 hash:
d8e5840e3574b87d435e55a65ac648e040871aee
Link:
https://www.unpac.me/results/e90de74d-50fb-4e36-8722-6a3432403f0f/
SH256 hash:
d3b3af69c1320ca49ffd3c89ee0b0dfa0d51e90167c05cc01a0aeb6f4c88a5ce
MD5 hash:
e1187163c1ce33794bd1e6bf5e75cc78
SHA1 hash:
8d8c3cbca66720d43c01b0464bd1bd615acfbde8
Link:
https://www.unpac.me/results/e90de74d-50fb-4e36-8722-6a3432403f0f/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/e90de74d-50fb-4e36-8722-6a3432403f0f/
SH256 hash:
b31381ee95538f03523a9f234b2d8f77a599d30872d8180aa53cf89d2b9f6030
MD5 hash:
1b660c6414138dbec252594b849c4226
SHA1 hash:
bcc480890279bbed4a6641563fc143b9e6d17923
Link:
https://www.unpac.me/results/e90de74d-50fb-4e36-8722-6a3432403f0f/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b31381ee9553/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/b31381ee95538f03523a9f234b2d8f77a599d30872d8180aa53cf89d2b9f6030

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/322914/

Comments