MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5. 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: 18


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

SHA256 hash: b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5
SHA3-384 hash: b84b010e90e00b9f4c38ad92eed8f0b508e634333de932db153ea9622ae261fb56cc22623cb2862419cb679005b0dcce
SHA1 hash: 327511505be7f1b87831f1ab1b14511004182735
MD5 hash: fac72ff49a7b66430a8a6e87ee7ad5c0
humanhash: missouri-magnesium-nine-burger
File name:Solicitud de cotización 2025-09em05.PDF (43.7 KB).exe
Download: download sample
Signature XWorm
Create hunting rule
File size:793'088 bytes
First seen:2025-09-05 10:54:48 UTC
Last seen:2025-09-15 06:57:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:0EOwsR+DvFRGyWseUeDRei+7U0RKvgrx+VJmeQNzuD:uwzRGdDu1r4/meQN
Threatray 6 similar samples on MalwareBazaar
TLSH T16EF45BCC96E5F511D13FB2B42F39A61043F66EAF19A6DA482AC290C77F39A014E507D3
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
Reporter lowmal3
Tags:exe xworm

Intelligence

File Origin
# of uploads :
3
# of downloads :
98
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Solicitud de cotización 2025-09em05.PDF (43.7 KB).exe
Verdict:
Malicious activity
Analysis date:
2025-09-05 10:55:06 UTC
Tags:
httpdebugger tool auto-startup remote xworm
Link:
https://app.any.run/tasks/f8d00738-b197-4d47-b372-47658d4cdfe2

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/25208/
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68bac1a4eb163e0ec1847453
Tags:
virus micro remo
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Sending a custom TCP request
Creating a process from a recently created file
Creating a file
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Creating a file in the mass storage device
Enabling autorun by creating a file
Enabling threat expansion on mass storage devices
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated threat vbnet
Link:
https://www.filescan.io/uploads/68bac1a314a3b51cba507d1d/reports/f0b6fc2e-fb75-479c-aff4-767696fa5c5b/overview
Verdict:
Malicious
Labled as:
Trojan.MSIL.Basic.8
Link:
https://www.hybrid-analysis.com/sample/b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-05T06:14:00Z UTC
Last seen:
2025-09-05T06:14:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/37887469-48fd-464b-b4eb-c2a6cbe4fa6e
Result
Threat name:
DarkTortilla, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1771664
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
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
Suricata IDS alerts for network traffic
Yara detected AntiVM3
Yara detected DarkTortilla Crypter
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.84 Win 32 Exe x86
Link:
https://app.malva.re/file/fac72ff49a7b66430a8a6e87ee7ad5c0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5/
Threat name:
ByteCode-MSIL.Backdoor.XWormRAT
Create hunting rule
Status:
Malicious
First seen:
2025-09-05 10:55:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvjqe4prbyc6dpzkm62nre2ezegwvv2g2hdyx4gpoxmxkwu7flsq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
Similar samples:
107dc46aadf806fd0eebb2ebf665f74151c67924aa8a2f61901e61004b3af471
XWorm
827ca062312a18b9ae309e3dc5ead9532c4b50978df894b7bee4602293eba0a6
XWorm
b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5
XWorm
error
XWorm
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:darktortilla family:xworm crypter discovery loader rat trojan
Link:
https://tria.ge/reports/250905-m1cjjsgj8w/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Darktortilla
Darktortilla family
Detect Xworm Payload
Detects Darktortilla crypter.
Xworm
Xworm family
Malware Config
C2 Extraction:
petro4prime.ydns.eu:5909
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d0e9369b-e955-4fa5-a28d-1ad0d0d4d200
Unpacked files
SH256 hash:
b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5
MD5 hash:
fac72ff49a7b66430a8a6e87ee7ad5c0
SHA1 hash:
327511505be7f1b87831f1ab1b14511004182735
Link:
https://www.unpac.me/results/f0c76989-21b2-452d-a057-69956e624798/
SH256 hash:
003ddf8ddfc7afbc21df8ab9dd223df737b6ec66d1ff65ffc8d1f54a43ae7a2c
MD5 hash:
d344219cdf67ca2902224dfaa2e98224
SHA1 hash:
10a96c279c505812124da69fee75b18cceb9e64d
Link:
https://www.unpac.me/results/f0c76989-21b2-452d-a057-69956e624798/
SH256 hash:
da4cb91d96214c7134a9e8799fdf241bd6b8103eecd4efb1b8c228ca3c8e7e91
MD5 hash:
9a06e083cd0531927dcd616b9b601ffa
SHA1 hash:
9584f7e1c8ab7be5900762abcaedf20cb92e4ae7
Link:
https://www.unpac.me/results/f0c76989-21b2-452d-a057-69956e624798/
SH256 hash:
2cb5b8fbcd0994c8371837858c1f6dfe8e0de017e86437c7aee38d710209f10a
MD5 hash:
4f5880d558000b383fbb6efb21100997
SHA1 hash:
d2ceb9140d797b0f4db46a0a02c274e4fe89f349
Link:
https://www.unpac.me/results/f0c76989-21b2-452d-a057-69956e624798/
SH256 hash:
b269e5ad872f75df1e00c3bb5159ae0f8993a28fe288d58997335faceb859545
MD5 hash:
a5fe5f7d121e902d31be788b3e17c0cd
SHA1 hash:
da981ad6ea301ef07cdc5b05b561e991a210db53
Detections:
win_xworm_w0
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Link:
https://www.unpac.me/results/f0c76989-21b2-452d-a057-69956e624798/
Parent samples :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 family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b5530271f10e/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/b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
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_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades
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

XWorm

Executable exe b5530271f10e05e1bf2a67b4d89344c90d6ad746d1c78bf0cf75d9755a9f2ae5

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/25208/

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