MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63b4600f00336a214819ed87c27c6ca6f809c5fbe12cd2a871447f72670846f5. 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 12 File information Comments 1

SHA256 hash: 63b4600f00336a214819ed87c27c6ca6f809c5fbe12cd2a871447f72670846f5
SHA3-384 hash: a755e12d9cc1e37bd148451d3a6d728b60fc24c67ddadbd47ec6e25c864bf70ac0e8ed787910f0a7da99aaa237db8dba
SHA1 hash: d0479c8d2ab4750eebfec950e52e84227ea698f5
MD5 hash: fca56524754f35dbf5ecd8dd52528374
humanhash: saturn-freddie-leopard-two
File name:fca56524754f35dbf5ecd8dd52528374
Download: download sample
Signature AsyncRAT
File size:612'352 bytes
First seen:2022-07-21 06:47:00 UTC
Last seen:2022-07-23 02:40:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'656 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:WFJ68bEdt1fiYcOwmZRC/HuBZpzN5/l/J7/lAA9P+mVF:WrP8tRupmZRCPuBP/ll/l39Br
TLSH T152D44BB6B652D665D4C28C7AE60ADBF6D6836D7CEC27861335D0FF3B323B121460A052
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 2327272f4f4f4f47 (1 x AsyncRAT)
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Searching for the window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Sending a TCP request to an infection source
Enabling autorun
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates an undocumented autostart registry key
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
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2022-07-20 21:02:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:1111 --- old tor --- 1111 persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Async RAT payload
AsyncRat
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
1b6b7581dcbf18cb88b259f25fc8451f69381e183658a7241f2d223bbe6af301
MD5 hash:
5a4f143e9767e5888ce5e020a735e462
SHA1 hash:
aa90148ddaa8619137e7805b246512d88cb4ef78
SH256 hash:
9152a0370216962fb7d3575724e2a9e8c5f68100094843e13715188a37508ea6
MD5 hash:
050361ea713b083ce32e30853f836e9f
SHA1 hash:
6d125b87b5b44f88bde7a21eaa6822a6c41625dc
SH256 hash:
2408f623bc8eb1cc8aa5b29c2981e1a0e88b93844481f6759251a7ed7a594287
MD5 hash:
dd5d56fa669aa4b1db800abf536f77d7
SHA1 hash:
67b22de4e8baeeca85fbab52f1395db6458d0bbf
SH256 hash:
63b4600f00336a214819ed87c27c6ca6f809c5fbe12cd2a871447f72670846f5
MD5 hash:
fca56524754f35dbf5ecd8dd52528374
SHA1 hash:
d0479c8d2ab4750eebfec950e52e84227ea698f5
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 63b4600f00336a214819ed87c27c6ca6f809c5fbe12cd2a871447f72670846f5

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-07-21 06:47:06 UTC

url : hxxp://141.98.6.236/1337New/Wjgqesf-OLD-2.exe