MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3. 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 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3
SHA3-384 hash: 634c64e89312f583a57417a3e14828ba79f405bbf35502bfb0387a25a0573aff6547e1ab836633a7325b67e8c169c5cb
SHA1 hash: af03d903005e4b8d55ce7e40f02411601860aa15
MD5 hash: fca9549f1ba4894dea0fedaf9a9589fe
humanhash: seventeen-washington-hamper-tennessee
File name:REFERENCE INV #05489--.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:974'336 bytes
First seen:2022-09-02 08:57:31 UTC
Last seen:2022-09-08 20:17:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:tF75eXgPwqoXY+mzoRtbvRT79fjfYp+GOayvPpVaWmvUAcW1/zxwVOw:tZ5MXY+mzo3bvjfjfm+GOay/aLcA/Q
TLSH T1A3251249AA88C3B5F4171BB01171F22482BE7E15C1B2C2DD6ECFF2EC45A9B129617E47
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 madjack_red
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
REFERENCE INV #05489--.exe
Verdict:
Malicious activity
Analysis date:
2022-09-02 08:57:49 UTC
Tags:
asyncrat stealer evasion
Link:
https://app.any.run/tasks/ea78d6d3-4ace-43d8-a2e7-abaa6a9799a8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
StormKitty
Create hunting rule
Link:
https://www.capesandbox.com/analysis/307363/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1427-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/6311c5d73e9e50b1baf7f908/reports/946abc2b-0551-47fa-9191-c7f8d27a51d9/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.
Malware family:
Stealerium Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f59074cc-dbcc-4216-8d27-7a5d8f26fbb4
Result
Threat name:
AsyncRAT, StormKitty
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1063877
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Contains functionality to log keystrokes (.Net Source)
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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
Uses the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-09-01 08:31:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd2atyzmv6kxg3ah2mw6l4cjhattj2whwx2tsh6cobcj22possrq._file
Result
Malware family:
stormkitty
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:stormkitty botnet:default rat stealer
Link:
https://tria.ge/reports/220902-kw6kqadeh8/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Drops desktop.ini file(s)
Looks up external IP address via web service
Looks up geolocation information via web service
Checks computer location settings
Async RAT payload
AsyncRat
StormKitty
StormKitty payload
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot5261540771:AAHpybxDtEnwQtX4w7iGcSpo7-vbVF4FJuk/sendMessage?chat_id=5130831629
Unpacked files
SH256 hash:
c45a3dae97e5e635a567df02635fe941af384f35cc993d4e52a57fa4f4026b3e
MD5 hash:
966c65a2893f62df72494272d810448f
SHA1 hash:
de82f765123b6ed954996603b663e9bac36acfb6
Link:
https://www.unpac.me/results/6e99db7e-9efc-4090-9270-bb0b28a7c824/
SH256 hash:
8978ea7823fc76578f73e4363bec7a6bc2c52d26a9a67d794a1b684344ec08da
MD5 hash:
c86119051d4cf53431c19d5ca00e07ca
SHA1 hash:
ae4b6fe00f3716c8f3b90a87075433c8c47d41b4
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/6e99db7e-9efc-4090-9270-bb0b28a7c824/
Parent samples :
b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3
e5faa494e1e698ef433f8e33432dec4269c5cb8a4a388174a3bc25b12ca1edc5
SH256 hash:
c02f8dbf43b04a0f9c8062c809f1797d7b632558ac97ea72c5faafaba4080cdb
MD5 hash:
8d501d1f6e49dd048ea941f06ca3c162
SHA1 hash:
7511f1542bd7bd486ccc5d9278436a577d6c3859
Link:
https://www.unpac.me/results/6e99db7e-9efc-4090-9270-bb0b28a7c824/
SH256 hash:
f6268f883d2176060abe3924c9a87e8350cbb9f1f3e64ca8c1288985c489d63b
MD5 hash:
d4f6e8207913bdd31b39aa4bc5db4ca7
SHA1 hash:
4504210b27a8a1e33f3e54deaee062748f6f0e33
Link:
https://www.unpac.me/results/6e99db7e-9efc-4090-9270-bb0b28a7c824/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/6e99db7e-9efc-4090-9270-bb0b28a7c824/
SH256 hash:
b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3
MD5 hash:
fca9549f1ba4894dea0fedaf9a9589fe
SHA1 hash:
af03d903005e4b8d55ce7e40f02411601860aa15
Link:
https://www.unpac.me/results/6e99db7e-9efc-4090-9270-bb0b28a7c824/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8f409e32caf/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/b8f409e32caf95736c07d32de5f049382734eac7b5f5391fc270449d69ee94a3

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/307363/

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