MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c84a5a426fd964eadf50f24c968fc8aee598ea4f2c92d2582d5770aebfaf5b5. 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 1 YARA 12 File information Comments

SHA256 hash: 7c84a5a426fd964eadf50f24c968fc8aee598ea4f2c92d2582d5770aebfaf5b5
SHA3-384 hash: cf13f8d1894627731104a2e46d9d4024c11b08260ca308b39b0d34adab53a45ee23d717a132834162513d903f0aba1a4
SHA1 hash: d1e8d4a1c1a3ae5e0f5b7cfe91539376843e1455
MD5 hash: c855f0ac978a619d20d818cf250ccdad
humanhash: wyoming-one-pennsylvania-lithium
File name:c855f0ac978a619d20d818cf250ccdad.exe
Download: download sample
Signature AsyncRAT
File size:582'144 bytes
First seen:2022-06-27 16:08:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:gRES3Hn7ndWHFKC7TwkvhljwX0Ved/CqB8:E3Xn7n0FKa0kv7MXieN18
Threatray 4'045 similar samples on MalwareBazaar
TLSH T11EC4D062F2A59CE5E41AF2F9A975AD2222177D68A4354A0A307B311D4DB3353CC73E0F
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 45d4c4dcf4c47211 (9 x AsyncRAT, 2 x AgentTesla, 2 x NanoCore)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
23.105.131.209:1137

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
23.105.131.209:1137 https://threatfox.abuse.ch/ioc/729527/

Intelligence


File Origin
# of uploads :
1
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed strictor
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-27 16:09:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:default rat suricata
Behaviour
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:
23.105.131.209:19328
23.105.131.209:1137
23.105.131.209:1070
Unpacked files
SH256 hash:
2be5bff29e6e2ce08feffad0d7340dc89a10372a1c67f3b1c43421ac7846b147
MD5 hash:
5e527949fb58c42e743395d5392d91a9
SHA1 hash:
ce779741316b586ddf2e63cf880154a103afc306
Detections:
win_asyncrat_w0 AsyncRAT
SH256 hash:
707b835c06297f2feed8c4a939b9f2d295d9da58a946c87a9909fd87209a20e2
MD5 hash:
fa24670a452be9f4124cc33f7e083367
SHA1 hash:
c89fde50c84c5cf8b330f60f020362925ebccd22
SH256 hash:
ea30265aa6243bb06dc620b638337a1bed38d91feb645acbafdc3c3099bc492c
MD5 hash:
cd576d411173a4c5f07b77275b4f4e35
SHA1 hash:
ad17fbed6ac61925a3162fd3333f383445940ba2
SH256 hash:
7c84a5a426fd964eadf50f24c968fc8aee598ea4f2c92d2582d5770aebfaf5b5
MD5 hash:
c855f0ac978a619d20d818cf250ccdad
SHA1 hash:
d1e8d4a1c1a3ae5e0f5b7cfe91539376843e1455
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_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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.

Web download

AsyncRAT

Executable exe 7c84a5a426fd964eadf50f24c968fc8aee598ea4f2c92d2582d5770aebfaf5b5

(this sample)

  
Delivery method
Distributed via web download

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