MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fbc62dc9ce31980448fe860b4803473d95f08bf5ea4e3558b5f8a19aab01a4d. 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: 15


Intelligence 15 IOCs 1 YARA 11 File information Comments

SHA256 hash: 3fbc62dc9ce31980448fe860b4803473d95f08bf5ea4e3558b5f8a19aab01a4d
SHA3-384 hash: c8ed37dc8beec65277ae9a1fc41a68e84c56247e48f3984d84882e2b57f1c39fc4d159f708f673750c92e56ef46115f0
SHA1 hash: 4fe466104146bbac6e1a559ff0a0982235f59bae
MD5 hash: 28acd7525a8fef12ee39478306bf1ac8
humanhash: tennessee-december-louisiana-artist
File name:28acd7525a8fef12ee39478306bf1ac8.exe
Download: download sample
Signature AsyncRAT
File size:508'928 bytes
First seen:2022-05-17 16:36:26 UTC
Last seen:2022-05-17 17:39:36 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 12288:9BT8jpQZ2pFA9jdK2qUpEGLputXz7Le519/g7a:zTSdFWKxUpdLp4X3Le51Oa
Threatray 5'887 similar samples on MalwareBazaar
TLSH T1FBB4D03EE1EBDF32C368A171C4D6280803754A1AD527F397266104E59E12FD7AA43BDB
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 808880ac8c88a888 (1 x AsyncRAT, 1 x LummaStealer)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
87.251.79.126:18066

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
87.251.79.126:18066 https://threatfox.abuse.ch/ioc/584061/

Intelligence


File Origin
# of uploads :
2
# of downloads :
300
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
ID:
1
File name:
28acd7525a8fef12ee39478306bf1ac8.exe
Verdict:
Malicious activity
Analysis date:
2022-05-17 17:02:45 UTC
Tags:
trojan rat asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
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.
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Found 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
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-05-17 16:37:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
22 of 41 (53.66%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:default rat suricata
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
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
87.251.79.126:18066
Unpacked files
SH256 hash:
a1b384f3e3e3d0ff603ac7fefa9753b40126af5fe1034d6e6df04eb2b55669e2
MD5 hash:
7cc634bee0cc311d2235f2ee7018e119
SHA1 hash:
e44ab38133829ba784e5dc705c8d82baaf0e10b3
SH256 hash:
0320487163dfd715779f02480c6bef947c7f35436ad744fbef2759c0ed13c883
MD5 hash:
d9a3d7a03c423899cb4a3b4ab5de580b
SHA1 hash:
3d8d39915e8fab5431d2531717a2b875c86b4238
Detections:
win_asyncrat_w0
SH256 hash:
c206122a7336385be557580c114ac0923192f61bc8f77aa58c898135438399f9
MD5 hash:
6c9e813248a01432890c476813d210b8
SHA1 hash:
fd54aa3af58fc3a88cb3fd6753d773cd6c51b7f8
SH256 hash:
be899b3a37ccbff0d2f4dc8dbc455bc6758c6333213aa54303e6bfdfc912084c
MD5 hash:
790de157640b534eb681047855a14591
SHA1 hash:
d7b1ad3586ca1614c2f9d00f7323adbe2fb01102
SH256 hash:
3fbc62dc9ce31980448fe860b4803473d95f08bf5ea4e3558b5f8a19aab01a4d
MD5 hash:
28acd7525a8fef12ee39478306bf1ac8
SHA1 hash:
4fe466104146bbac6e1a559ff0a0982235f59bae
Please note that we are no longer able to provide a coverage score for Virus Total.

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

Comments