MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8. 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


Formbook


Vendor detections: 16


Intelligence 16 IOCs YARA 12 File information Comments
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SHA256 hash: 920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8
SHA3-384 hash: 046d53c70132d07549ce76905afdcc3064c14e8d4a5347fc377efa807cb47425c04cbbba7ca5d2f656d4a0dc926f7637
SHA1 hash: 6541642a869513496746c25d7af014e06a956f77
MD5 hash: 5b50c73ddeebc65bbfd68203b5dfcb0a
humanhash: grey-south-equal-floor
File name:JAN12-AntiAnalysisXClient.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:44'544 bytes
First seen:2024-01-19 19:09:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 768:PMlesaclOP+xR7lYADlhu2cZ1dAF99vw1aOKhX3lgof:PMrvlOP+5lcZ8F99vw4OKxiA
TLSH T140134B08B7E54625D5FE6BB03972A1060270EA13DD13E75E08E495AE2F277C0CE817EB
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter Anonymous
Tags:exe FormBook xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
368
Origin country :
US US
Vendor Threat Intelligence
Detection:
XWorm
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Link:
https://www.capesandbox.com/analysis/471747/
Detection(s):
Win.Packed.njRAT-10002074-1
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ditekSHen.MALWARE.Win.Trojan.AsyncRAT.UNOFFICIAL
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ditekSHen.MALWARE.Win.XWorm.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Searching for the window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm asyncrat cmd explorer fingerprint hook keylogger lolbin njrat njrat xworm
Link:
https://www.filescan.io/uploads/65aac91068f6c896b6d39b3d/reports/aec7ec90-f7ff-4a21-bea5-2459bac47f0b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8
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:
XWorm
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e6451753-5aa0-4b69-b5c3-ac238d89a04c
Result
Threat name:
XWorm
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1377692
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Generic Downloader
Yara detected Telegram RAT
Yara detected Telegram Recon
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8
Detection:
xworm
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Link:
https://mwdb.cert.pl/sample/920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8/
Threat name:
ByteCode-MSIL.Backdoor.XWorm
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Status:
Malicious
First seen:
2024-01-12 18:10:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sigbnpbc67igmtd33l7i4xhu7ltvirpsiqeewq24n2awodloe3ma._file
Verdict:
malicious
Result
Malware family:
xworm
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Score:
  10/10
Tags:
family:xworm rat trojan
Link:
https://tria.ge/reports/240119-xvcbpscaap/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Looks up external IP address via web service
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
adyeezy.duckdns.org:5901
Unpacked files
SH256 hash:
920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8
MD5 hash:
5b50c73ddeebc65bbfd68203b5dfcb0a
SHA1 hash:
6541642a869513496746c25d7af014e06a956f77
Detections:
XWorm
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INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
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MALWARE_Win_XWorm
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INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
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MALWARE_Win_AsyncRAT
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Link:
https://www.unpac.me/results/0daa778f-5f4f-4b09-81e7-85989acd4636/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/920c16bc22f7/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/920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8

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:DebuggerCheck__RemoteAPI
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
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Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
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Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:MALWARE_Win_AsyncRAT
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Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
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Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
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Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NETexecutableMicrosoft
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Author:malware-lu
Rule name:Njrat
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Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
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Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:win_xworm_bytestring
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects bytestring present in unobfuscated xworm

File information

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

Web download

Formbook

Executable exe 920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8

(this sample)

  
Link
https://www.virustotal.com/gui/file/920c16bc22f7d0664c7bdafe8e5cf4fae75445f244084b435c6e81670d6e26d8
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/471747/

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