MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7. 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: 18


Intelligence 18 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7
SHA3-384 hash: 86b3b78a85fa926d1d0f1bac91e89cf12f4ad8b29a6a1307b2de77695f0de933d96cbb33d6a3f23b8740dcc670a17360
SHA1 hash: 9be1e0bb48c9343c22f292089e4931f0ce739421
MD5 hash: acb979b81c2acf8de8925ac44a607e48
humanhash: washington-uranus-victor-india
File name:file
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:564'232 bytes
First seen:2025-01-02 19:09:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:lxX3xXFdZd9HdkGIwHNLfh2AnX9TML8wHbC708POrXNiH19m9IWIu/rqkR:fzrd9HdkGIONLh2AnXkv8PeUL5WIyp
Threatray 179 similar samples on MalwareBazaar
TLSH T1CDC4F158561AE603CA416B340EB1F2B52B7C2ED9B401E2179FDC6FEFBD76A202D54183
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 70b269e8cccccc28 (2 x RemcosRAT, 1 x Expiro, 1 x Formbook)
Reporter jstrosch
Tags:.NET AsyncRAT exe MSIL


Avatar
jstrosch
Found at hxxp://52575815-38-20200406120634.webstarterz[.]com/A4KMikAtfksMoHb.exe by #subcrawl

Intelligence

File Origin
# of uploads :
1
# of downloads :
462
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2025-01-02 19:10:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f561fe1c-408e-4011-9ed3-d25dd8e4d7d1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3148.13957.3838.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6776e4901ada707798256146
Tags:
autorun shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Restart of the analyzed sample
Creating a file
Creating a file in the %AppData% subdirectories
Running batch commands
Creating a process from a recently created file
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/6776e48f8c82920d7a1ca39a/reports/1d4ecb69-4e60-4505-aee7-f10e6eff103b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/74398f35-5016-475a-ab72-1b09f6f9bcdb
Result
Threat name:
AsyncRAT, VenomRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1583468
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected VenomRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1583468 Sample: file.exe Startdate: 02/01/2025 Architecture: WINDOWS Score: 100 77 Found malware configuration 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 Sigma detected: Scheduled temp file as task from temp location 2->81 83 12 other signatures 2->83 8 file.exe 7 2->8         started        12 NotepadUpdate.exe 2->12         started        14 efQsxHSLtNUjTi.exe 5 2->14         started        16 4 other processes 2->16 process3 file4 67 C:\Users\user\AppData\...\efQsxHSLtNUjTi.exe, PE32 8->67 dropped 69 C:\...\efQsxHSLtNUjTi.exe:Zone.Identifier, ASCII 8->69 dropped 71 C:\Users\user\AppData\Local\...\tmp3F50.tmp, XML 8->71 dropped 73 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->73 dropped 87 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->87 89 Uses schtasks.exe or at.exe to add and modify task schedules 8->89 91 Adds a directory exclusion to Windows Defender 8->91 18 file.exe 8 8->18         started        21 powershell.exe 23 8->21         started        24 schtasks.exe 1 8->24         started        93 Multi AV Scanner detection for dropped file 12->93 95 Machine Learning detection for dropped file 12->95 97 Injects a PE file into a foreign processes 12->97 26 powershell.exe 12->26         started        32 2 other processes 12->32 34 2 other processes 14->34 28 powershell.exe 16->28         started        30 powershell.exe 16->30         started        37 7 other processes 16->37 signatures5 process6 dnsIp7 65 C:\Users\user\AppData\...65otepadUpdate.exe, PE32 18->65 dropped 53 2 other processes 18->53 85 Loading BitLocker PowerShell Module 21->85 39 conhost.exe 21->39         started        41 conhost.exe 24->41         started        43 conhost.exe 26->43         started        45 conhost.exe 28->45         started        47 conhost.exe 30->47         started        49 conhost.exe 32->49         started        75 185.208.158.187, 4449, 49840, 49868 SIMPLECARRER2IT Switzerland 34->75 51 conhost.exe 34->51         started        55 2 other processes 37->55 file8 signatures9 process10 process11 57 conhost.exe 53->57         started        59 conhost.exe 53->59         started        61 timeout.exe 53->61         started        63 2 other processes 53->63
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-12-31 04:24:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j7setubwyzahh2cawgf2sa3ixckrlf2a52czmr3oiijfi55hb3lq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
asyncrat
Create hunting rule
Similar samples:
1e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393
AsyncRAT
52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8
AsyncRAT
bb2a13c3f2f32551b00c4173f0cb5baf28cdadf76e4e6b531885a162f7c310c6
AsyncRAT
ea2232c0ea11a5a8743e15a262576447424c3353bf882089f3c0bd8cb546a80b
AsyncRAT
error
AsyncRAT
f93805b2899cc7a68369be48f770e2f293410dfea9f0186d4270fedff272a8ce
AsyncRAT
+ 169 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default discovery execution rat
Link:
https://tria.ge/reports/250102-xvcmgavmgr/
Behaviour
Delays execution with timeout.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
185.208.158.187:4449
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0bfd0388-74ef-4bf4-b497-3657d0ca741b
Unpacked files
SH256 hash:
5696366c258afba53fbe1f7d2c85fa66f1a30e0d438cdba06746d80b5fa84c00
MD5 hash:
fc36d9f49c7b9020739843dad8b152ed
SHA1 hash:
7b265fb94caaa43cbb901d6e154ea6ec3b475299
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/470c35d1-d579-4b87-ae97-d4770ac6b292/
SH256 hash:
c6bafe73d265549c6a1e3acc40832b353afa3da6ed9fcfcb29a1b9a0ab295873
MD5 hash:
82c10f642acffece8950e5b00b7c95a8
SHA1 hash:
734cfec8a3d3ae46e05e1bb658e06a640efbc777
Link:
https://www.unpac.me/results/470c35d1-d579-4b87-ae97-d4770ac6b292/
SH256 hash:
1f1822a655e8c3ae49dd9b56c1c1ddb556f143acc27807007891a02f19f101d8
MD5 hash:
f63cc268c91592ce8156a5bbdf82602c
SHA1 hash:
520c13381e8f50098686693182757421877db14f
Detections:
VenomRat
Create hunting rule
AsyncRAT
Create hunting rule
win_asyncrat_unobfuscated
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice
Create hunting rule
Link:
https://www.unpac.me/results/470c35d1-d579-4b87-ae97-d4770ac6b292/
Parent samples :
1e01e5c379d7504669a75f317c60c31297dc347792b9131fad73092a88383393
52a610b0ad89165f4a65a504f9cdd2ecdf8310d96088529fed72463a54fcd6c8
7a31e73a61251309c51a343c14af5149915110c0f818747f7de78344739f21c5
4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7
SH256 hash:
4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7
MD5 hash:
acb979b81c2acf8de8925ac44a607e48
SHA1 hash:
9be1e0bb48c9343c22f292089e4931f0ce739421
Link:
https://www.unpac.me/results/470c35d1-d579-4b87-ae97-d4770ac6b292/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4fe449d036c6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

Executable exe 4fe449d036c64073e840b18ba90368b895159740ee8596476e42125477a70ed7

(this sample)

  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments