MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12. 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 1 YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12
SHA3-384 hash: 8fcc3d07188386e92a896a8d2ab6bbf1a435ac27209e2e692b3508fe3640a3f62ae32603aa79eb810937d8a6e9928732
SHA1 hash: e233f51f53730851a48e907d923ce63a5ae194b0
MD5 hash: 0aec930272b9857b7cde834e3f281fb4
humanhash: florida-snake-neptune-jersey
File name:0aec930272b9857b7cde834e3f281fb4.exe
Download: download sample
Signature njrat
Create hunting rule
File size:1'007'616 bytes
First seen:2021-04-29 09:36:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:eY5s4cFJsrW2pxf8zaw8ZjcrJrQYaTjRRRRRaLWpvhK:eYOJFJIpFsaqr5QYaTjRRRRRp
Threatray 124 similar samples on MalwareBazaar
TLSH D625F89C365075EFC85BC976CEA81C64FA61747B831F8203A06712EDAA4D99BCF144F2
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
103.73.64.115:6522

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
103.73.64.115:6522 https://threatfox.abuse.ch/ioc/22250/

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a2f.zip
Verdict:
Malicious activity
Analysis date:
2021-04-20 01:16:38 UTC
Tags:
trojan loader
Link:
https://app.any.run/tasks/f9458dcd-8b93-4a91-af26-38ab616386dd

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/146531/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.677-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/702180
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Changes the view of files in windows explorer (hidden files and folders)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 400013 Sample: 34gaBUBsur.exe Startdate: 29/04/2021 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for dropped file 2->43 45 10 other signatures 2->45 7 34gaBUBsur.exe 7 2->7         started        process3 file4 29 C:\Users\user\AppData\...\LEjbxOkofqb.exe, PE32 7->29 dropped 31 C:\Users\...\LEjbxOkofqb.exe:Zone.Identifier, ASCII 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmpAED3.tmp, XML 7->33 dropped 35 C:\Users\user\AppData\...\34gaBUBsur.exe.log, ASCII 7->35 dropped 47 Detected unpacking (changes PE section rights) 7->47 49 Detected unpacking (overwrites its own PE header) 7->49 51 Uses schtasks.exe or at.exe to add and modify task schedules 7->51 53 2 other signatures 7->53 11 34gaBUBsur.exe 7->11         started        15 powershell.exe 25 7->15         started        17 powershell.exe 25 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 37 stub.ignorelist.com 103.73.64.115, 49731, 6522 HOSTHATCHUS United States 11->37 55 Changes the view of files in windows explorer (hidden files and folders) 11->55 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        27 conhost.exe 19->27         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-04-19 19:22:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
42
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zwhnedbp7yhaq3j2bnsa4skq4scyh4uxwy2wyfg6mjrduqzc7yja._file
Verdict:
suspicious
Similar samples:
0d179277dc17521d3f9668838ddc6cfe818f72ef5691c123443b9442295d90ff
njrat
618f4050d767d0c8f835ec3fa9e46b85b9291062a2e381122852238fa84c95f7
njrat
733036ae8101048351d1cf684fe1bc02c1cf7a70725a470bec7cbd59a602738b
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82f9d45ee92a5f51af44dc11384e5a10fa12fbb46659291dc188a9222d17fc34
njrat
91f5ba0e0abcad0604f2a2f1ae529bf84c1e30b44677b572b89e150b48b59b46
njrat
95a191b5e1728a1dc9a0007719ae7adba5be88b1ae5e8919185c91a201148a51
njrat
b1eb6dca624a1a78cd91360e6af46b0d7bc0afaca59ddf35cfff0ed2b9df4119
njrat
c40529ad4cd03e64f1c62065d003f19d2903c77654ebe5823ea0a474f884f1d4
njrat
eac957f655d15206f8875a31eb0b225040ee39015ff01189901f78230e39c33f
njrat
f95573e18dd16600bedc2ab6917774a91603d5e90ae5deccfa969a8311802972
njrat
+ 114 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210429-s3f7gtk8ka/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
e33b0d0b4b86f0dbb3d1278e68e88a650e5f3350694efb70be313761197b1969
MD5 hash:
471161f6f24e5d26b2db3e0ee18e80b5
SHA1 hash:
ed98f1178a5fe4b86fe0f7e4cd5ebbfba7483a30
Link:
https://www.unpac.me/results/18cbf5b7-a9ad-493c-b156-b1652d8f339f/
SH256 hash:
cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12
MD5 hash:
0aec930272b9857b7cde834e3f281fb4
SHA1 hash:
e233f51f53730851a48e907d923ce63a5ae194b0
Link:
https://www.unpac.me/results/18cbf5b7-a9ad-493c-b156-b1652d8f339f/
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/cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12

File information

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

Web download

njrat

Executable exe cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/146531/
  
URLhaus
https://urlhaus.abuse.ch/url/1182329/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1182407/

Comments