MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371. 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: 17


Intelligence 17 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371
SHA3-384 hash: f8a0de28d776fc093ada5e8406ce67343ad502d7ac2bf2edbcc779549f9c813d9eb8f2ca0d1975f608b6a671938d21f0
SHA1 hash: c6689884e4bf3360fceacbdaff09d211cef3a49d
MD5 hash: da5c4dbbc80ca5da70237ef8bc281476
humanhash: magnesium-berlin-uniform-bulldog
File name:Stub.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:62'464 bytes
First seen:2023-01-05 08:14:32 UTC
Last seen:2023-01-05 08:14:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 1536:+/KCnABwEttYQuT68QKzWbVSDRDZLbxx:+/KrBwEttYm8BabVSjLVx
Threatray 3'221 similar samples on MalwareBazaar
TLSH T1EE532B043BE9C129F1BE8F709DF376444AB9F1677906DA0E1CD451DA0622BC68A427EF
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter r3dbU7z
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
193
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Stub.exe
Verdict:
Malicious activity
Analysis date:
2023-01-05 08:17:36 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/40937c72-c4af-4dce-871f-b9c321231d5b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/349574/
Detection(s):
Win.Packed.Razy-9625918-0
Create hunting rule

Win.Packed.AsyncRAT-9861056-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Setting a global event handler for the keyboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm asyncrat greyware njrat packed rat
Link:
https://www.filescan.io/uploads/63b6870a83a5ae8cb4a7ce6c/reports/002e6d67-7a2a-4464-9f5f-5e460cc9dfd3/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:
Malicious
Link:
https://analyze.intezer.com/analyses/bae0388d-dcec-4d89-9197-977b2d625502
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1145506
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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 Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371/
Threat name:
ByteCode-MSIL.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-01-05 08:15:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jga33jcdoe7vz3fz35grmpgwf4n5aoglrf4jlozpqeavpfthmnyq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
55df3917ad56d204f96fd28eef9f0803169383497fd543a6e5c4dabbfa897d52
AsyncRAT
6b1263d2d5fecfbd34926b6649b01b0187c6790b8676fb0a43e7919cf175b5c2
AsyncRAT
6fb463643f9bcf44fe05bde709217e76660efbe6b6174e36d4f192da995bb783
AsyncRAT
85fa1c143de860787aaa1d270c121381d18ff236813059959fba9a941742b8a2
AsyncRAT
b50f7c365160c6134ce71e97e646d8245761687aa431a31a12423daf6cf33012
AsyncRAT
d5f162d4ab50a806c77d3462307ddaefb30135bb6a8ecbe75afc253a2c3cbd2c
AsyncRAT
e8dd6ca9125d656f8243da0a8224948b838a87c2200c247ea5e3b28ede034488
AsyncRAT
+ 3'211 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:new try rat
Link:
https://tria.ge/reports/230105-j5j8eabd34/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
egrh.linkpc.net:5505
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e4dca8d7-9907-4b3c-b9f8-cae58a5a8eda
Unpacked files
SH256 hash:
4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371
MD5 hash:
da5c4dbbc80ca5da70237ef8bc281476
SHA1 hash:
c6689884e4bf3360fceacbdaff09d211cef3a49d
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/3441b728-bbb1-41ee-9b48-c4f0b596b2d1/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4981bda44371/report/overview.html
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/4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371

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:AsyncRat_Detection_Dec_2022
Create hunting rule
Author:Potatech
Description:AsyncRat
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: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:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
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.

Web download

AsyncRAT

Executable exe 4981bda443713f5cecb9df4d163cd62f1bd038cb897895bb2f81015796676371

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/349574/

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