MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7. 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


DarkCloud


Vendor detections: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7
SHA3-384 hash: 48f62162b1d0cdf0e945bd3a8897b4b44e958c60b5bc23006b71e3f4b6a4cbf8bd0270e4e716a3a6036bd3ca59c3fb61
SHA1 hash: ff10a928f6eb00315ef904f70941e5099db0085b
MD5 hash: 37c8269e339be5c440256d4adb187217
humanhash: mirror-three-early-six
File name:Factura modificada____53432324242331____pdf.exe
Download: download sample
Signature DarkCloud
Create hunting rule
File size:16'896 bytes
First seen:2025-11-05 00:05:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 384:yasWWEd+iEMqASMK4Gg1Vz7K2kOa0lsDoeIz:yknd+iuwzMDoe8
TLSH T1597217087FACC6A3C5BC56BC54A2038F1272D77BB492E74A5C8D9E5639173D028D22F2
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 threatcat_ch
Tags:DarkCloud exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Re_ Factura modificada____53432324242331.msg
Verdict:
Malicious activity
Analysis date:
2025-11-04 14:37:15 UTC
Tags:
attachments attc-arch arch-exec stealer evasion
Link:
https://app.any.run/tasks/5aa775e0-716f-43f8-b60b-0ef96925b42d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/35377/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690a94fe9942f1282ecc253b
Tags:
underscore autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt to an infection source
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Mardom.IN.Generic
Link:
https://www.hybrid-analysis.com/sample/39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-03T12:35:00Z UTC
Last seen:
2025-11-06T21:31:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/d25694f4-ef76-44c7-aeea-faf6d3038ebe
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1808175
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops VBS files to the startup folder
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
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected DarkCloud
Yara detected Generic Dropper
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1808175 Sample: Factura modificada____53432... Startdate: 05/11/2025 Architecture: WINDOWS Score: 100 30 showip.net 2->30 32 rubberpartsmanufacturers.com 2->32 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 Multi AV Scanner detection for submitted file 2->42 44 11 other signatures 2->44 8 wscript.exe 1 2->8         started        11 Factura modificada____53432324242331____pdf.exe 15 5 2->11         started        signatures3 process4 dnsIp5 52 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->52 15 Resolver.exe 14 2 8->15         started        36 rubberpartsmanufacturers.com 103.191.208.122, 443, 49719, 49723 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 11->36 24 C:\Users\user\AppData\Roaming\Resolver.exe, PE32 11->24 dropped 26 C:\Users\...\Resolver.exe:Zone.Identifier, ASCII 11->26 dropped 28 C:\Users\user\AppData\...\Resolver.vbs, ASCII 11->28 dropped 54 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 11->54 56 Writes to foreign memory regions 11->56 58 Injects a PE file into a foreign processes 11->58 18 InstallUtil.exe 58 11->18         started        file6 signatures7 process8 dnsIp9 60 Antivirus detection for dropped file 15->60 62 Multi AV Scanner detection for dropped file 15->62 64 Writes to foreign memory regions 15->64 66 Injects a PE file into a foreign processes 15->66 21 InstallUtil.exe 35 15->21         started        34 showip.net 162.55.60.2, 49720, 49724, 80 ACPCA United States 18->34 68 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->68 70 Tries to steal Mail credentials (via file / registry access) 18->70 signatures10 process11 signatures12 46 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->46 48 Tries to steal Mail credentials (via file / registry access) 21->48 50 Tries to harvest and steal browser information (history, passwords, etc) 21->50
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.43 Win 32 Exe x86
Link:
https://app.malva.re/file/37c8269e339be5c440256d4adb187217
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2025-11-04 09:59:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hhmjjjbuixu4kzpjfh7uva3qhqg3rzfrgcvayqh6wt6b3a3kjxdq._file
Verdict:
malicious
Label(s):
darkcloudstealer
Create hunting rule
unc_loader_078
Create hunting rule
Similar samples:
error
DarkCloud
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery stealer
Link:
https://tria.ge/reports/251105-ads7kady4h/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
DarkCloud
Darkcloud family
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2ea2a6d7-ae9a-4d6a-a0a5-4d7b7cd4dbd1
Unpacked files
SH256 hash:
39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7
MD5 hash:
37c8269e339be5c440256d4adb187217
SHA1 hash:
ff10a928f6eb00315ef904f70941e5099db0085b
Link:
https://www.unpac.me/results/5e45b989-9397-4b70-a43e-65cdf84a8794/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7

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
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)

File information

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

Malspam

DarkCloud

Executable exe 39d894a43445e9c565e929ff4a83703c0db8e4b130aa0c40feb4fc1d836a4dc7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/35377/

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