MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 842fb6327e8d09667003b87a199aafde3dd0b05b9e603cd154bfefc0fe0c7280. 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: 10


Intelligence 10 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 842fb6327e8d09667003b87a199aafde3dd0b05b9e603cd154bfefc0fe0c7280
SHA3-384 hash: 6e1f82fe9ed5fe549d3a49579c485be55580e5ff2096c8a46ae1dd696557519b09675f321998176f097991b75054118a
SHA1 hash: 381e091243776dd1102c2afedd688d40d24fd491
MD5 hash: 51ded13168a62c8dcb024855dc039f93
humanhash: princess-fifteen-beryllium-shade
File name:SecuriteInfo.com.Trojan.PackedNET.1391.29854.9598
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:691'712 bytes
First seen:2022-06-21 16:47:54 UTC
Last seen:2022-06-22 07:52:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:TNp3kjxqpvcLKlzdeHT7Ni5OdwQoTL8W0w+o4G1hOyu0kBEoKV/BC8TS:mx4SYEz705zTrO5ilS
TLSH T1C2E4F11127F94F1FF1AB56BDE13D46128675F8336847EB98892961EE60C37C08B21AC7
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
230
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/282041/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1391.29854.9598.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Adding an access-denied ACE
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/62b1f64bb83ad3ae8f43db3b/reports/9f239f7c-0de5-4a7a-a953-e044449c48f0/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/ff4fecf7-8679-4304-869d-d988387d5c10
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1017304
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Contains functionality to hide user accounts
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/842fb6327e8d09667003b87a199aafde3dd0b05b9e603cd154bfefc0fe0c7280/
Threat name:
ByteCode-MSIL.Trojan.Samas
Create hunting rule
Status:
Malicious
First seen:
2022-06-21 16:48:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qqx3mmt6ruewm4adxb5btgvp3y65bmc3tzqdzukux7x4b7qmokaa._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:microsoft office rat
Link:
https://tria.ge/reports/220621-va4jcafghk/
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
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
45.141.237.30:55055
Unpacked files
SH256 hash:
8c231c488029abde403ee4772de2acb94ef6240342561e6ee49cd643c5f83abb
MD5 hash:
d2a05beab9532f75212de74afe5c3ae7
SHA1 hash:
4731741c04417da37809d4857f775b30ed31a8ae
Link:
https://www.unpac.me/results/ff15d4eb-0e9d-4707-833f-7a3e7bd5a223/
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
Link:
https://www.unpac.me/results/ff15d4eb-0e9d-4707-833f-7a3e7bd5a223/
SH256 hash:
842fb6327e8d09667003b87a199aafde3dd0b05b9e603cd154bfefc0fe0c7280
MD5 hash:
51ded13168a62c8dcb024855dc039f93
SHA1 hash:
381e091243776dd1102c2afedd688d40d24fd491
Link:
https://www.unpac.me/results/ff15d4eb-0e9d-4707-833f-7a3e7bd5a223/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/842fb6327e8d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/842fb6327e8d09667003b87a199aafde3dd0b05b9e603cd154bfefc0fe0c7280

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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.

Cape
Cape
https://www.capesandbox.com/analysis/282041/

Comments