MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e. 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


XWorm


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e
SHA3-384 hash: 835f26eb5f2e7b67fde4853616de5fe845d35da7c539152e84a943561c512f016220875b1ddb08190fdb624de57ae8d5
SHA1 hash: 5f9d1d4d3aea4a82542b54a84d0fa7822bd24d2c
MD5 hash: 40a1bbdd302c9737d10df6648e6db7dc
humanhash: magnesium-uniform-emma-avocado
File name:ISF (10+2) Form 格福-3019 NASHVILLE.xls.scr
Download: download sample
Signature XWorm
Create hunting rule
File size:966'144 bytes
First seen:2024-05-20 07:12:56 UTC
Last seen:2024-05-20 07:12:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:XVTGAlfBpSGC9Ed/Ff6qVn60dP185uk+mzA0pRELuvg8IQjzek:XVT7rhCqd/N6qVlyug8IEaY81Pek
TLSH T1CC25084713D5BA14CD3FB7B23220291443F25DB59622CB5E9EC8B2CD3B3162569DAF82
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter threatcat_ch
Tags:exe xworm

Intelligence

File Origin
# of uploads :
2
# of downloads :
345
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e.exe
Verdict:
Malicious activity
Analysis date:
2024-05-20 07:15:47 UTC
Tags:
remote xworm
Link:
https://app.any.run/tasks/98e6cd27-0fd6-4790-9cf4-04bad2639e49

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
Banker Encryption Execution Stealth Nekark Dexter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Creating a process with a hidden window
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/701df672-55d7-4ee7-83ef-4da41101dda4
Result
Threat name:
DarkTortilla, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1444160
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
Allocates memory in foreign processes
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
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
Snort IDS alert for network traffic
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1444160 Sample: ISF (10+2) Form #U683c#U798... Startdate: 20/05/2024 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 13 other signatures 2->45 8 ISF (10+2) Form #U683c#U798f-3019 NASHVILLE.xls.scr.exe 3 2->8         started        process3 signatures4 49 Writes to foreign memory regions 8->49 51 Allocates memory in foreign processes 8->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->53 55 Injects a PE file into a foreign processes 8->55 11 InstallUtil.exe 6 8->11         started        16 InstallUtil.exe 8->16         started        process5 dnsIp6 37 104.250.180.178, 49742, 7061 M247GB United States 11->37 35 C:\Users\user\AppData\Roaming\XClient.exe, PE32 11->35 dropped 57 Adds a directory exclusion to Windows Defender 11->57 18 powershell.exe 23 11->18         started        21 powershell.exe 23 11->21         started        23 powershell.exe 23 11->23         started        25 powershell.exe 11->25         started        59 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 16->59 61 Bypasses PowerShell execution policy 16->61 file7 signatures8 process9 signatures10 47 Loading BitLocker PowerShell Module 18->47 27 conhost.exe 18->27         started        29 conhost.exe 21->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        process11
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-05-20 06:34:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n5h3xaczpag3ovsrt6xjpn7qafepdxzls3o27f2s3faj2robun7a._file
Verdict:
malicious
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution rat trojan
Link:
https://tria.ge/reports/240520-h13zaahc38/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Xworm
Malware Config
C2 Extraction:
104.250.180.178:7061
Unpacked files
SH256 hash:
94c1b83e9181e597748af34aa30324fa001324bd12d33b12aa01e2a05ba779d6
MD5 hash:
090b76b0c6152ea71f08d1e9ae8f3742
SHA1 hash:
ff5ca08e6d69cb68a76422e804b0574d551ed20e
Detections:
XWorm
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
Link:
https://www.unpac.me/results/a1b9f85d-f092-4699-ac91-80037c0a44b2/
Parent samples :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 hash:
56aaa2b9e53d69dd75c8d1247220d8ea97b1b7705796b2e2ddff34c7eea8adee
MD5 hash:
50f28d178452b2db4e1f466904e55c78
SHA1 hash:
d9a3246a570715d756a6c653b6818afb99ae39ec
Link:
https://www.unpac.me/results/a1b9f85d-f092-4699-ac91-80037c0a44b2/
SH256 hash:
0781f74db6c9ff7aa0c1e76dd0ebc4a9575fba6caca9aac9fb0131c5a73c84be
MD5 hash:
2c064163cda2f093cf6d20302481dff7
SHA1 hash:
cf948b10d999c369ef51972f86278a4f536d400d
Link:
https://www.unpac.me/results/a1b9f85d-f092-4699-ac91-80037c0a44b2/
SH256 hash:
2db82e9b91b1ccb1957b4e06ec49bfb0096e973213fc1786de1bbe3162f5df5a
MD5 hash:
27dea42a70bd7e948f1171ce873878a1
SHA1 hash:
b87051d51479c093cdf3e721acea4fd8b940b1e5
Link:
https://www.unpac.me/results/a1b9f85d-f092-4699-ac91-80037c0a44b2/
SH256 hash:
6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e
MD5 hash:
40a1bbdd302c9737d10df6648e6db7dc
SHA1 hash:
5f9d1d4d3aea4a82542b54a84d0fa7822bd24d2c
Link:
https://www.unpac.me/results/a1b9f85d-f092-4699-ac91-80037c0a44b2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6f4fbb805978/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/6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e

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: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

File information

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

Malspam

XWorm

Executable exe 6f4fbb8059780db756519fae97b7f00148f1df2b96ddaf9752d9409d45c1a37e

(this sample)

  
Delivery method
Distributed via e-mail attachment

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

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