MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f. 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


AsyncRAT


Vendor detections: 16


Intelligence 16 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f
SHA3-384 hash: e903e61fb21ae17f7159e3f58bd28e176d56940a74b9e1d98c1cd27afeab594b0d17af5d6a54512505b5da816f020f39
SHA1 hash: 144a338d2f9c7e612238c90cc2a02675d073712f
MD5 hash: b92c7ab0649ce10d40ae8e5d671b3801
humanhash: orange-missouri-tennis-cardinal
File name:SV001736738.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:401'408 bytes
First seen:2022-06-28 22:57:17 UTC
Last seen:2022-07-04 16:22:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:0sfz2iN/2iNzRL04DdrrSRF5A+KV+fkPRxliW1:Hfz1J1Pt/s2+fkPRrh
Threatray 4'044 similar samples on MalwareBazaar
TLSH T1B38402C823E80B68F5F64BF914EC92251BF4700D8AE4D65F7DD022DEEE5077886A1A17
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)
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
245
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
SV001736738.7z
Verdict:
Malicious activity
Analysis date:
2022-06-28 04:35:11 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/9e8ba797-1194-4c80-8633-aa24516ea2e6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/284058/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
DNS request
Sending an HTTP GET request
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bb877c197c837506cdc558/reports/3aca2956-8269-44d8-b32a-4173dc18428c/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:
Unknown
Link:
https://analyze.intezer.com/analyses/b681341c-95b4-43d0-afa8-6924fd65702b
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1020936
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-28 01:15:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
25 of 41 (60.98%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6ij4xycwgjofa7emo6qkq4w47ki7jqjbk6fvraxnfln5ws4p4xq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
1299373ec40fc1f3f16957338574a9ad51a94e62220cc8c08f1ad81dee443544
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
2e75072eae7fa044b3ee05b2ba378823bbfa3091ceb5612f33b637c0d0764a21
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
4964c618368217328e5fb70c84e047f18e5027ae0e6ea984b1b96c38ffad77c7
AsyncRAT
6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939
AsyncRAT
f0e61a30a68cacde89ef636511dfae2b488bcbe9b47053c3afc0718d66324f70
AsyncRAT
f85fb30beeceb9e2721aa12deee155bb604c0a364f926da18644af7e6e5c7a25
AsyncRAT
f8d60cc318fc750f965180766b7edb64a81d86845b27b23f8d7bb0296adea2b7
AsyncRAT
+ 4'034 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat
Link:
https://tria.ge/reports/220628-2xstpaegd3/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
xman2.duckdns.org:3110
Unpacked files
SH256 hash:
0cb6aef1fa57d11408e47ae071485ef8f48c2982997b8d74b47a4151d85b978c
MD5 hash:
843aa6edf83bff7b61c6a5369ef41e95
SHA1 hash:
d1bfeec8eaac9a1dacf2f7062ce964d8e7d77085
Link:
https://www.unpac.me/results/0b2a44a2-eab5-4b77-9c2a-3c2d298c6f62/
SH256 hash:
8aa2ae51ce193a11fac373010a09b172a262ca8eb46dbc61cf2237fb3200d80a
MD5 hash:
ea5a93fa2689ded0c7b61da801ae74f8
SHA1 hash:
d02772307adc6eb0154a9ea908f85685f9bee5b4
Link:
https://www.unpac.me/results/0b2a44a2-eab5-4b77-9c2a-3c2d298c6f62/
SH256 hash:
0e446831274a6c80a82a0b5f7a21b00e4a7d7f98cbc53ad21f8ab8dd89148abc
MD5 hash:
ac48ce30a57600890f92fc9b09a5807e
SHA1 hash:
b23eb63cd4d984ed6233248ed6569e9aef5bcbfa
Link:
https://www.unpac.me/results/0b2a44a2-eab5-4b77-9c2a-3c2d298c6f62/
SH256 hash:
87577e6c69af07ba0e6383a2a152b59a39d6b336631ce4baa250bd9f8adce03d
MD5 hash:
9b17d560e68eff0da30f79b3c391c9a3
SHA1 hash:
5ceda263b1ea13401f652c709dd884d58945fe57
Link:
https://www.unpac.me/results/0b2a44a2-eab5-4b77-9c2a-3c2d298c6f62/
SH256 hash:
cfafc87f0224d77f2c5e75dda099db1e224366e37cd880e4dcd5dd18400f49b4
MD5 hash:
a838d6e3ea8655583c728c412ccfb9f1
SHA1 hash:
54580af7650f37edb0d15c5b042680c7396e234c
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/0b2a44a2-eab5-4b77-9c2a-3c2d298c6f62/
Parent samples :
21131250446a0aab5ba89a48e230699df7e1cd90d52fbf67b8aabca4a19d3a47
eb0ad6ad552aafd93a665862dec70bc3760aecc11d4c93d07e844ecd0c293d1c
98757d38bdbe966a734be8f2ee396d8df92c9cf9b22da68c11d474cd052f8236
4dbe4f649e82b3d3153da173720bbf25f3e2df5241f43e1a11033ce4215af9b4
15bef4692b874ffeab6b3590aa55292e5a6d992236f885fd84719d95e92767dd
37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f
SH256 hash:
37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f
MD5 hash:
b92c7ab0649ce10d40ae8e5d671b3801
SHA1 hash:
144a338d2f9c7e612238c90cc2a02675d073712f
Link:
https://www.unpac.me/results/0b2a44a2-eab5-4b77-9c2a-3c2d298c6f62/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37909e5f02b1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f

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:AsyncRat
Create hunting rule
Author:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research

File information

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

Malspam

AsyncRAT

Executable exe 37909e5f02b192e283e463bd054396e7d48fa6090abc5ac4176956deda5c7f2f

(this sample)

  
Dropped by
AsyncRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/284058/

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