MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b. 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: 14


Intelligence 14 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b
SHA3-384 hash: 79990da87f6d6fa60a25aeeac0b842ff26e4f15cbec41f0889b3abe1745129d019c454270679bd3698343555e4f08293
SHA1 hash: 1fed977486b75dbdba3d1f148b180a4290fef106
MD5 hash: b58fa014257635941fe9337b005e5392
humanhash: mountain-beer-hamper-fix
File name:bScs.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:48'640 bytes
First seen:2023-12-01 17:07:48 UTC
Last seen:2023-12-01 17:08:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:oq+s3pUtDILNCCa+Di6liT8YbdgewKvEgK/JfZVc6KN:oq+AGtQONzbKHKnkJfZVclN
Threatray 58 similar samples on MalwareBazaar
TLSH T115236E4037D8C13AE6FD4775A9F2A20582B5E2171D03DB8D6CC824AA2B13FC596536FE
TrID 40.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
32.2% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
7.3% (.SCR) Windows screen saver (13097/50/3)
5.8% (.EXE) Win64 Executable (generic) (10523/12/4)
3.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter pmelson
Tags:AsyncRAT DCRat exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
371
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/461743/
Detection(s):
Sanesecurity.Malware.29669.UNOFFICIAL
Create hunting rule

Win.Malware.Generickdz-9865912-0
Create hunting rule

Win.Malware.Enigmaprotector-9874743-0
Create hunting rule

Win.Malware.Enigmaprotector-9881027-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Running batch commands
Creating a file
Launching a process
Verdict:
Malicious
Labled as:
Backdoo.1BBEAE4C
Link:
https://www.hybrid-analysis.com/sample/8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b
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.
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/39c83eae-5355-4c80-b1cf-ebedef5087cf
Result
Threat name:
AsyncRAT, DcRat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1351571
Behaviour
Behavior Graph:
n/a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b
Detection:
dcrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-12-01 17:08:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rkob63f3hqahnbw5jfzdxk5zll6jjez2vpy4eajohfpoh3htuznq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
1dac278c05c70bc6df9e9eff71a38932549c61f51e1fed6239420a3c542c0476
AsyncRAT
5d7c4fd868e99334df95874c2c97f7e4ec2899e50fc482e637f5540d63032087
AsyncRAT
682d0715a72ba27e0b0fe217b30adb446500758b97dc8fa603727b490f6fb60f
AsyncRAT
79d845cdc5127ee753555f48f2ff555c85894235f2f7d2da74fd83d0d5672599
AsyncRAT
81bbf492816fdf74123d81ae5f01d85764f9be418fe4930e7c569fcdff1b3787
AsyncRAT
8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b
AsyncRAT
992dffa683d5a6e02b1bc40a2447a7cbfa03eab11adf8f9a5ff2b1d18cec7c93
AsyncRAT
aa44b193e2eb0046c55dc1a78fed298c361f06835256504ff42db39c5692df10
AsyncRAT
e296fd745e2a6dfb3f345a73e59174d5236c9c55855c8ee0c5602955614d9794
AsyncRAT
+ 48 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:noviembre rat
Link:
https://tria.ge/reports/231201-vnh5kadh8t/
Behaviour
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Deletes itself
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
indea123.duckdns.org:2106
Unpacked files
SH256 hash:
8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b
MD5 hash:
b58fa014257635941fe9337b005e5392
SHA1 hash:
1fed977486b75dbdba3d1f148b180a4290fef106
Detections:
DCRat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
win_asyncrat_unobfuscated
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_B64_Artifacts
Create hunting rule
Link:
https://www.unpac.me/results/bb7f42b6-2b7a-433b-874b-32fee3e90818/
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/8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b

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_EXE_B64_Artifacts
Create hunting rule
Author:ditekSHen
Description:Detects executables embedding bas64-encoded APIs, command lines, registry keys, etc.
Rule name:INDICATOR_SUSPICIOUS_EXE_DcRatBy
Create hunting rule
Author:ditekSHen
Description:Detects executables containing the string DcRatBy
Rule name:INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Author:ditekSHen
Description:Detects executables attemping to enumerate video devices using WMI
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:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
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:Windows_Trojan_DCRat_1aeea1ac
Create hunting rule
Author:Elastic Security
Rule name:win_asyncrat_unobfuscated
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in unobfuscated AsyncRat Samples. Rule may also pick up on other Asyncrat-derived malware (Dcrat/venom etc)

File information

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

Web download

AsyncRAT

Executable exe 8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b

(this sample)

  
Link
https://www.virustotal.com/gui/file/8a9c1f6cbb3c007686dd49723babb95afc94933aabf1c2012e395ee3ecf3a65b/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/461743/

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