MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4c4305b733f2cbb4bef63dfa2dc5cf4d40b07dadcac884ff5552ca5a926ec06. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4c4305b733f2cbb4bef63dfa2dc5cf4d40b07dadcac884ff5552ca5a926ec06
SHA3-384 hash: d8fa0c66e4a125b3529a7761b99c908c1901dcfbeb2519994f8f8669ba1dbe2a775c503f9bd9fb2419450009e516c1bc
SHA1 hash: b187afcb42906b48bd145fbec05faff0b6158094
MD5 hash: 1bb369267114ff38acbc81c8ba76fa05
humanhash: pizza-solar-quebec-four
File name:0037609INV.pdf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:468'480 bytes
First seen:2021-09-21 14:54:47 UTC
Last seen:2021-09-21 18:28:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:0hIbw8eGGmtiK5oSVCa2KLpVttHiLr12:lbw8eGG+FoSVCaVLpVtJi9
Threatray 1'376 similar samples on MalwareBazaar
TLSH T197A4F1A2B19E4254D39DBBB1216193407FB7FEBA5933C50D2ADD30CD4A37A814E71B22
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0037609INV.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-09-21 14:57:16 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7df991a1-2996-446a-8962-0c5e3395e025

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/189925/
Detection(s):
SecuriteInfo.com.Artemis1BB369267114.28855.3817.UNOFFICIAL
Create hunting rule

Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bbdafbf7-56cc-4e52-b1a9-e85042927618
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/855007
Signature
.NET source code contains potential unpacker
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 487437 Sample: 0037609INV.pdf.exe Startdate: 21/09/2021 Architecture: WINDOWS Score: 100 65 Multi AV Scanner detection for dropped file 2->65 67 Yara detected AntiVM3 2->67 69 Yara detected AsyncRAT 2->69 71 7 other signatures 2->71 10 0037609INV.pdf.exe 7 2->10         started        14 dew.exe 5 2->14         started        process3 file4 53 C:\Users\user\AppData\RoamingLTDpA.exe, PE32 10->53 dropped 55 C:\Users\user\...LTDpA.exe:Zone.Identifier, ASCII 10->55 dropped 57 C:\Users\user\AppData\Local\...\tmpB466.tmp, XML 10->57 dropped 59 C:\Users\user\...\0037609INV.pdf.exe.log, ASCII 10->59 dropped 73 Uses schtasks.exe or at.exe to add and modify task schedules 10->73 75 Injects a PE file into a foreign processes 10->75 16 0037609INV.pdf.exe 6 10->16         started        19 schtasks.exe 1 10->19         started        77 Multi AV Scanner detection for dropped file 14->77 79 Machine Learning detection for dropped file 14->79 21 schtasks.exe 14->21         started        23 dew.exe 14->23         started        signatures5 process6 file7 51 C:\Users\user\AppData\Roaming\dew.exe, PE32 16->51 dropped 25 cmd.exe 1 16->25         started        27 cmd.exe 1 16->27         started        29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        process8 process9 33 dew.exe 4 25->33         started        36 conhost.exe 25->36         started        38 timeout.exe 1 25->38         started        40 conhost.exe 27->40         started        42 schtasks.exe 1 27->42         started        signatures10 63 Injects a PE file into a foreign processes 33->63 44 schtasks.exe 33->44         started        46 dew.exe 33->46         started        process11 dnsIp12 49 conhost.exe 44->49         started        61 79.134.225.9, 3030, 49765, 49766 FINK-TELECOM-SERVICESCH Switzerland 46->61 process13
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c4c4305b733f2cbb4bef63dfa2dc5cf4d40b07dadcac884ff5552ca5a926ec06/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-21 14:55:11 UTC
AV detection:
14 of 45 (31.11%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ytcdaw3th4wlws7pmpp2fxc46tkawb623swiqt7vkuwklkjg5qda._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
0b8a5cbe236a7057a2904f18480b85ce9b59b891c0a1a041516248d35760744d
AsyncRAT
16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
AsyncRAT
220bb2b7deba41f53a8d86d677691aff283314a29c27cc49b2ba396699237825
AsyncRAT
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
AsyncRAT
b51c07d9a4e50ac499514d378320260821bd7486acd1077a6bddf8ab70c6a2b3
AsyncRAT
bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
AsyncRAT
ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
AsyncRAT
ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
AsyncRAT
fee6cda76d8c5b289b76deba1176049e529f51ac06f817a8a22ec77b17d74f35
AsyncRAT
+ 1'366 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat
Link:
https://tria.ge/reports/210921-sagcpshha8/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Unpacked files
SH256 hash:
cf3c9eeda83352cf8c6716d48ffe9189307921579c81cfb2587909a7fb29b71f
MD5 hash:
a1ef778b584b78027a466b55c2bf3924
SHA1 hash:
e0078fe297d55e8d01975bc1fb953a659aa09b7c
Link:
https://www.unpac.me/results/e9801bb2-2a95-4f3e-b72a-bea36ecad008/
SH256 hash:
ee0fe8f2d0201c5fbcbdc2b796ecc5feb02b9a525b7ab183f8d03a31c6e0b7e3
MD5 hash:
1ac05f77b115ffc2ddbd276b21df4133
SHA1 hash:
36f0dd58f3fda697764deb6326177af3e08b55ff
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/e9801bb2-2a95-4f3e-b72a-bea36ecad008/
Parent samples :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 hash:
7d8a81e99dd00479b4a514c6ecc79f5a8470ac4d5bdef95965c124bf9a00d05b
MD5 hash:
0fd55fca0a1b3cb24d7c2cd87c079e15
SHA1 hash:
0c64212cae950b74c5a81454443a467308faf6e8
Link:
https://www.unpac.me/results/e9801bb2-2a95-4f3e-b72a-bea36ecad008/
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/e9801bb2-2a95-4f3e-b72a-bea36ecad008/
SH256 hash:
c4c4305b733f2cbb4bef63dfa2dc5cf4d40b07dadcac884ff5552ca5a926ec06
MD5 hash:
1bb369267114ff38acbc81c8ba76fa05
SHA1 hash:
b187afcb42906b48bd145fbec05faff0b6158094
Link:
https://www.unpac.me/results/e9801bb2-2a95-4f3e-b72a-bea36ecad008/
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/c4c4305b733f2cbb4bef63dfa2dc5cf4d40b07dadcac884ff5552ca5a926ec06

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_InTheFuture
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: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.

Malspam

AsyncRAT

Executable exe c4c4305b733f2cbb4bef63dfa2dc5cf4d40b07dadcac884ff5552ca5a926ec06

(this sample)

  
Dropped by
AsyncRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/189925/

Comments