MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b7c8b471a0f5e45026d07fabae3eb68f7251d066830cd68e7cf5a7fd342e13b. 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: 13


Intelligence 13 IOCs 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b7c8b471a0f5e45026d07fabae3eb68f7251d066830cd68e7cf5a7fd342e13b
SHA3-384 hash: 7d827611f42df2630e4fca736cd1d0c723301031407ef35445d38a58d51bcad49df3d26bb8cdcacba0f341480823aee3
SHA1 hash: 3870cccc225cf9d5d492f56e5661197990fbf439
MD5 hash: 949576a0beb43c7d197389d4a572006b
humanhash: double-fix-don-fish
File name:Sathya Raj-Resume.pdf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:679'936 bytes
First seen:2021-08-16 06:50:36 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 12288:jJZFMKPw4+FAWeiq/ZHTWL7ewKVBd3Y2OU5JOEPpBja:VG4+FALZeSVBVY2XHPi
Threatray 1'168 similar samples on MalwareBazaar
TLSH T1C5E4BF7071A78A96F51F4AB42578BC5403B231F3E9C69939171A614ACFEDE983F4820F
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
79.134.225.9:3030

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
79.134.225.9:3030 https://threatfox.abuse.ch/ioc/189937/

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Sathya Raj-Resume.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-16 06:51:25 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/b4a3bebf-3e98-4fc4-b56f-19d42c8f2bc4

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/179429/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Running batch commands
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
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/2fa38266-19a4-48f5-a7fd-e618038c8f5f
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/833329
Signature
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
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 an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 465760 Sample: Sathya Raj-Resume.pdf.exe Startdate: 16/08/2021 Architecture: WINDOWS Score: 92 66 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 Sigma detected: Suspicious Double Extension 2->70 72 6 other signatures 2->72 10 Sathya Raj-Resume.pdf.exe 7 2->10         started        14 dew.exe 5 2->14         started        process3 file4 56 C:\Users\user\AppData\...\bhIppYTuiEflJ.exe, PE32 10->56 dropped 58 C:\...\bhIppYTuiEflJ.exe:Zone.Identifier, ASCII 10->58 dropped 60 C:\Users\user\AppData\Local\Temp\tmp4EC.tmp, XML 10->60 dropped 62 C:\Users\...\Sathya Raj-Resume.pdf.exe.log, ASCII 10->62 dropped 74 Injects a PE file into a foreign processes 10->74 16 Sathya Raj-Resume.pdf.exe 6 10->16         started        19 schtasks.exe 1 10->19         started        21 Sathya Raj-Resume.pdf.exe 10->21         started        76 Multi AV Scanner detection for dropped file 14->76 78 Machine Learning detection for dropped file 14->78 23 schtasks.exe 14->23         started        25 dew.exe 14->25         started        signatures5 process6 file7 54 C:\Users\user\AppData\Roaming\dew.exe, PE32 16->54 dropped 27 cmd.exe 1 16->27         started        29 cmd.exe 1 16->29         started        31 conhost.exe 19->31         started        33 conhost.exe 23->33         started        process8 process9 35 dew.exe 4 27->35         started        37 conhost.exe 27->37         started        39 timeout.exe 1 27->39         started        41 conhost.exe 29->41         started        43 schtasks.exe 1 29->43         started        process10 45 dew.exe 35->45         started        48 schtasks.exe 35->48         started        50 dew.exe 35->50         started        dnsIp11 64 79.134.225.9, 3030, 49728 FINK-TELECOM-SERVICESCH Switzerland 45->64 52 conhost.exe 48->52         started        process12
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8b7c8b471a0f5e45026d07fabae3eb68f7251d066830cd68e7cf5a7fd342e13b/
Threat name:
ByteCode-MSIL.Trojan.Sabsik
Create hunting rule
Status:
Malicious
First seen:
2021-08-16 06:51:06 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rn6iwry2b5pekatna75lvy7lnd3skhignaym22hhz5nh7u2c4e5q._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
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16fc0cec13d88da3d0a36e4c42e733db8f1e21cafc18fd813a25cd0bc835f35a
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438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
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87b7b68ed10c1e85866fc17772627f0577d6f6e578ee8a36a0fb598e46c78cd0
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b51c07d9a4e50ac499514d378320260821bd7486acd1077a6bddf8ab70c6a2b3
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bcf7571a4d9b25fabdc2d6120b1b2d7bd8446ea2bc3a5da1d4127954920067de
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ceddcfa72226e91f7435facafe6631d1385ca4d246d242d5136ac4e9462b8611
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ecb8839117d73d33390c84f7f6e02f4970156ccb2da7b48083922f60625fa8be
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fee6cda76d8c5b289b76deba1176049e529f51ac06f817a8a22ec77b17d74f35
AsyncRAT
+ 1'158 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat rat suricata
Link:
https://tria.ge/reports/210816-kld5532h66/
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
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
79.134.225.9:3030
Unpacked files
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/a84014d1-95dd-4b54-b9c9-becbeabec471/
SH256 hash:
f4a5ff5ed79168651678d0fafac0db9a128d4c665d4eed32ae0436e8377e17f0
MD5 hash:
8dbf45d73f4934fa03f0625ddedb3ec2
SHA1 hash:
a8bc446cd6d1009b6aa0248641f03097baba99bc
Link:
https://www.unpac.me/results/a84014d1-95dd-4b54-b9c9-becbeabec471/
SH256 hash:
ee0fe8f2d0201c5fbcbdc2b796ecc5feb02b9a525b7ab183f8d03a31c6e0b7e3
MD5 hash:
1ac05f77b115ffc2ddbd276b21df4133
SHA1 hash:
36f0dd58f3fda697764deb6326177af3e08b55ff
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/a84014d1-95dd-4b54-b9c9-becbeabec471/
Parent samples :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 hash:
8b7c8b471a0f5e45026d07fabae3eb68f7251d066830cd68e7cf5a7fd342e13b
MD5 hash:
949576a0beb43c7d197389d4a572006b
SHA1 hash:
3870cccc225cf9d5d492f56e5661197990fbf439
Link:
https://www.unpac.me/results/a84014d1-95dd-4b54-b9c9-becbeabec471/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8b7c8b471a0f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/8b7c8b471a0f5e45026d07fabae3eb68f7251d066830cd68e7cf5a7fd342e13b

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:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
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
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.

Cape
Cape
https://www.capesandbox.com/analysis/179429/

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