MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490. 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


DarkWatchman


Vendor detections: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
SHA3-384 hash: 35f7e93f5c15abf8e7469ce8af451ad992538fe58d95bff4a8a9cf7378ddcbeee955efbcd0a6deb02e9ad954619ddf23
SHA1 hash: 6bad65da724ad573961e7670c844808cf9d9c054
MD5 hash: 581309440da717a6cb94f38c7a631a50
humanhash: nineteen-april-zebra-mexico
File name:903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
Download: download sample
Signature DarkWatchman
Create hunting rule
File size:875'192 bytes
First seen:2025-04-08 08:22:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:rY9n6n0EHnZzCqe9KJQJNW0VO/DCw+3P6sFxqH:rYont5u2Qdg/DCwyCsvqH
Threatray 4'577 similar samples on MalwareBazaar
TLSH T1221501989B88E103CE961B714A31F675223D6EDEA801D3178FEDBDEF7933B415904286
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 e0e4a2aaa4b8a888 (10 x DarkWatchman, 5 x SnakeKeylogger, 5 x Formbook)
Reporter adrian__luca
Tags:DarkWatchman exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
329
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
Verdict:
Malicious activity
Analysis date:
2025-04-08 11:37:34 UTC
Tags:
phishing susp-powershell
Link:
https://app.any.run/tasks/1a088fd7-f500-4959-9894-c0ac1f13cac7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f4de75e011fe619fad2012
Tags:
shell virus sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Creating a file in the %temp% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Searching for synchronization primitives
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Moving a recently created file
Launching a process
DNS request
Connection attempt to an infection source
Connection attempt
Sending an HTTP GET request
Query of malicious DNS domain
Sending a TCP request to an infection source
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature obfuscated packed packed packer_detected signed swisyn
Link:
https://www.filescan.io/uploads/67f4dcd36258a97207fbfc50/reports/b05b4e70-8826-49fc-b994-221c1409735d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/81643eb5-4f48-4eab-84c1-c67377db0624
Result
Threat name:
DarkWatchman
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1659793
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Contains functionality to log keystrokes (.Net Source)
Creates processes via WMI
Deletes shadow drive data (may be related to ransomware)
Encrypted powershell cmdline option found
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious PowerShell Invocations - Generic - PowerShell Module
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes or reads registry keys via WMI
Wscript starts Powershell (via cmd or directly)
Yara detected AntiVM3
Yara detected DarkWatchman
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1659793 Sample: TVnUkF5LEq.exe Startdate: 08/04/2025 Architecture: WINDOWS Score: 100 80 4ad74aab.xyz 2->80 82 4ad74aab.sbs 2->82 84 2 other IPs or domains 2->84 94 Suricata IDS alerts for network traffic 2->94 96 Malicious sample detected (through community Yara rule) 2->96 98 Antivirus detection for URL or domain 2->98 102 15 other signatures 2->102 11 TVnUkF5LEq.exe 3 2->11         started        15 wscript.exe 2->15         started        17 wscript.exe 3 2->17         started        20 svchost.exe 2->20         started        signatures3 100 Performs DNS queries to domains with low reputation 80->100 process4 dnsIp5 72 C:\Users\user\AppData\...\TVnUkF5LEq.exe.log, ASCII 11->72 dropped 106 Injects a PE file into a foreign processes 11->106 22 TVnUkF5LEq.exe 15 11->22         started        25 TVnUkF5LEq.exe 11->25         started        27 TVnUkF5LEq.exe 11->27         started        108 System process connects to network (likely due to code injection or exploit) 15->108 110 Deletes shadow drive data (may be related to ransomware) 15->110 29 powershell.exe 15->29         started        32 powershell.exe 15->32         started        76 4ad74aab.fun 185.159.131.10, 443, 49687, 49688 ITOS-ASRU Russian Federation 17->76 78 127.0.0.1 unknown unknown 20->78 file6 signatures7 process8 file9 68 C:\Users\user\AppData\Local\Data\3610022385, ASCII 22->68 dropped 34 cmd.exe 1 22->34         started        36 WerFault.exe 22 16 22->36         started        70 C:\Users\user\AppData\...\eogoqmfc.cmdline, Unicode 29->70 dropped 112 Installs a global keyboard hook 29->112 39 csc.exe 29->39         started        41 conhost.exe 29->41         started        43 csc.exe 32->43         started        45 conhost.exe 32->45         started        signatures10 process11 file12 47 wscript.exe 6 5 34->47         started        51 conhost.exe 34->51         started        62 C:\ProgramData\Microsoft\...\Report.wer, Unicode 36->62 dropped 64 C:\Users\user\AppData\Local\...\eogoqmfc.dll, PE32 39->64 dropped 53 cvtres.exe 39->53         started        66 C:\Users\user\AppData\Local\...\35ma3jfh.dll, PE32 43->66 dropped 55 cvtres.exe 43->55         started        process13 file14 74 C:\Users\user\AppData\Local\9e146be90.js, ASCII 47->74 dropped 86 Suspicious powershell command line found 47->86 88 Wscript starts Powershell (via cmd or directly) 47->88 90 Encrypted powershell cmdline option found 47->90 92 6 other signatures 47->92 57 powershell.exe 23 47->57         started        signatures15 process16 signatures17 104 Loading BitLocker PowerShell Module 57->104 60 conhost.exe 57->60         started        process18
Score:
89%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2025-03-25 12:59:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sa6c73dkr5bfi7dohztokrs7wedbypq5tk5iw3fitdnnlb4ugsia._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
genericransomware
Create hunting rule
Similar samples:
1081e4e28ab35a70584e49c4a5dbd783b02c9380e797c5e542d93f5ebbda9ab5
DarkWatchman
3b5a8e898e6ecd4cfd2522224ed72bc9631dffda8ff4ba104e59542dc1578f54
DarkWatchman
903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
DarkWatchman
a1c04004be787db87466c0b929c22782d672b23f7de53046076ae4d13d08f74f
DarkWatchman
a9d823a1d524fe4474e1c48b6aa13c6bc9833214ffa912890f54fc7d0c0111e5
DarkWatchman
error
DarkWatchman
f0b540b1edbd94b9a7b330505529477cbbf6742ad78008979661d30b8f54731a
DarkWatchman
+ 4'567 additional samples on MalwareBazaar
Result
Malware family:
darkwatchman
Create hunting rule
Score:
  10/10
Tags:
family:darkwatchman discovery execution trojan
Link:
https://tria.ge/reports/250408-j9xdja1zew/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Darkwatchman
Darkwatchman family
Process spawned unexpected child process
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/fbe941cf-6b1f-409f-9d05-2be706bdc300
Unpacked files
SH256 hash:
903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490
MD5 hash:
581309440da717a6cb94f38c7a631a50
SHA1 hash:
6bad65da724ad573961e7670c844808cf9d9c054
Link:
https://www.unpac.me/results/82a46b3d-3973-47c4-aa69-6aaf909b86f6/
SH256 hash:
24da61418cadcd3e2fc719d2554d2b9224c418adc0dcd27af9cd57fe105a371e
MD5 hash:
457f2fdb88b0444e3c8d7ec0ee0578a6
SHA1 hash:
2408fcabc18cf57610a2e25e550155081e524e3a
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/82a46b3d-3973-47c4-aa69-6aaf909b86f6/
SH256 hash:
bbac028c0470bfe98177dde3bbd82b48a316a992fb51797a79e1aca9064bfb9f
MD5 hash:
2e794cc77833e2e5f4a8514a9014e5e8
SHA1 hash:
288d60c2f36ce703122034fec75f56096595a629
Link:
https://www.unpac.me/results/82a46b3d-3973-47c4-aa69-6aaf909b86f6/
SH256 hash:
e757898c2c0bb04bef27492967673033f69cc992fe90e2c1cb94e99987a7c820
MD5 hash:
869b0e68494cdd35fd87cb1c54d36ee3
SHA1 hash:
3ddf1a04ceaa02dd7510d1211e6dbff559813fde
Link:
https://www.unpac.me/results/82a46b3d-3973-47c4-aa69-6aaf909b86f6/
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/903c2fec6a8f42547c6e3e66e5465fb1061c3e1d9aba8b6ca898dad587943490

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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:win32_dotnet_form_obfuscate
Create hunting rule
Author:Reedus0
Description:Rule for detecting .NET form obfuscate malware

File information

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

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

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