MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d. 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 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d
SHA3-384 hash: 0af51ca5329f0d8de84a7f74ba339e210469484e6933d6490fff2ed8f8203503467e9495ba61506847a63266a32c0f7f
SHA1 hash: 0a2705f02d76ab00980825cf918a0083e7fca67a
MD5 hash: a6411b2c0b54c794244ca7f6702f82f6
humanhash: jig-paris-neptune-seventeen
File name:PACKING & INVOICE - SO.4208 - PO WK16 TPES25040659.scr
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:612'352 bytes
First seen:2025-04-29 03:46:39 UTC
Last seen:2025-04-29 03:46:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:fGaKsGDVTTTTTTT7tfRzytGSOlMCLA+w5O7Pv+kAEnO70drFaV:mTTTTTTT7tfVhlMvOSf0HS
Threatray 4 similar samples on MalwareBazaar
TLSH T103D4E0542799D607CE6A0BF52A31F1B0277D6EAEA410D31A8FDA2DFB7532F084D04993
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
dhash icon 1adc8c8c9a9a82e0 (5 x Formbook, 4 x MassLogger, 2 x AgentTesla)
Reporter threatcat_ch
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
498
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PACKING & INVOICE - SO.4208 - PO WK16 TPES25040659.scr
Verdict:
Malicious activity
Analysis date:
2025-04-29 03:51:50 UTC
Tags:
auto-startup remote xworm
Link:
https://app.any.run/tasks/a4d84214-b2e8-493f-a041-8051669a273c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/4821/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68104ebac8b2e86d0ac41fa5
Tags:
autorun shell virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process with a hidden window
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
entropy masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68104bbe212716475fb061d8/reports/4db9743e-d651-4e9c-bfc0-4f1b15d9f40c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ecb31b6f-23e9-4303-bf7c-c1769a13dd63
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1676851
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
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)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Yara detected AntiVM3
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1676851 Sample: PACKING & INVOICE - SO.4208... Startdate: 29/04/2025 Architecture: WINDOWS Score: 100 42 Suricata IDS alerts for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 14 other signatures 2->48 8 PACKING & INVOICE - SO.4208 - PO WK16  TPES25040659.scr.exe 3 2->8         started        process3 file4 34 PACKING & INVOICE ...5040659.scr.exe.log, ASCII 8->34 dropped 50 Injects a PE file into a foreign processes 8->50 12 PACKING & INVOICE - SO.4208 - PO WK16  TPES25040659.scr.exe 6 8->12         started        signatures5 process6 dnsIp7 38 104.250.180.178, 49724, 7061 M247GB United States 12->38 36 C:\Users\user\AppData\Roaming\XClient.exe, PE32 12->36 dropped 52 Adds a directory exclusion to Windows Defender 12->52 17 powershell.exe 23 12->17         started        20 powershell.exe 23 12->20         started        22 powershell.exe 23 12->22         started        24 powershell.exe 12->24         started        file8 signatures9 process10 signatures11 40 Loading BitLocker PowerShell Module 17->40 26 conhost.exe 17->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-04-29 03:19:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hcpasfawsmwvfywb3h225p4zbebkjqzc2sdk7o3qoty6x5w26gq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
xworm
Create hunting rule
Similar samples:
3368dc50181b9b117285127693f958ef48a0fd70fd6606131c4db6a4d0d55eb7
AsyncRAT
97bc060177fce1b452b8474da11b19a05eca49b554eb923e4fac8987bcf88caa
AsyncRAT
error
AsyncRAT
f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d
AsyncRAT
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution rat trojan
Link:
https://tria.ge/reports/250429-eb8xfswnz6/
Behaviour
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
Drops startup file
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
104.250.180.178:7061
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bdd4ee4d-8dac-48bd-8f90-2adc3cc54d0d
Unpacked files
SH256 hash:
f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d
MD5 hash:
a6411b2c0b54c794244ca7f6702f82f6
SHA1 hash:
0a2705f02d76ab00980825cf918a0083e7fca67a
Link:
https://www.unpac.me/results/7252691c-c4c9-451f-857c-96db3b96c1e8/
SH256 hash:
ab47c826988525070e73546fc3fc4b74ebeee4c43e583606eb95d4fa8563d4b1
MD5 hash:
3881b93afa9bf573ade8143f3bc04ade
SHA1 hash:
9afd410232d9acac53648899d138839b7f81361f
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/7252691c-c4c9-451f-857c-96db3b96c1e8/
SH256 hash:
ef95a02ea91377eb567b7c9a651608e9c2dee8ff798657968a06324ff953c324
MD5 hash:
4db5fd6c530c9f631d1cede7b77314ca
SHA1 hash:
ec0a08c09cbe1fc45f16eb9ebd7fb4a6240b351d
Link:
https://www.unpac.me/results/7252691c-c4c9-451f-857c-96db3b96c1e8/
SH256 hash:
94c1b83e9181e597748af34aa30324fa001324bd12d33b12aa01e2a05ba779d6
MD5 hash:
090b76b0c6152ea71f08d1e9ae8f3742
SHA1 hash:
ff5ca08e6d69cb68a76422e804b0574d551ed20e
Detections:
win_xworm_w0
Create hunting rule
XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
win_mal_XWorm
Create hunting rule
win_xworm_bytestring
Create hunting rule
Link:
https://www.unpac.me/results/7252691c-c4c9-451f-857c-96db3b96c1e8/
Parent samples :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 family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1c4f048a0b4/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/f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d

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:ByteCode_MSIL_Backdoor_AsyncRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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: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)
Rule name:Windows_Generic_Threat_05f52e4d
Create hunting rule
Author:Elastic Security
Rule name:Windows_Generic_Threat_1636c2bf
Create hunting rule
Author:Elastic Security
Rule name:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:xworm_kingrat
Create hunting rule
Author:jeFF0Falltrades

File information

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

Malspam

AsyncRAT

Executable exe f1c4f048a0b4996a97160ecfad75fcc84815261916a4357ddb83a78f5fb6d78d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/4821/

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 (HIGH_ENTROPY_VA)high

Comments