MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88. 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: 15


Intelligence 15 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88
SHA3-384 hash: 8c0dc7bede3b1bf6869aa80bcd9d8108829b7a53c7a8f7d8cfa8b1ed990f54492071b136a96d46ae6a934047fae19829
SHA1 hash: fd147e54360e5cbf0801a254a69c9ea80c621ca7
MD5 hash: ca0c194a1f62934de4394205125b4076
humanhash: charlie-cup-idaho-lion
File name:payment receipt__pdf.exe
Download: download sample
Signature DarkCloud
Create hunting rule
File size:1'150'464 bytes
First seen:2025-01-23 00:30:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:qHFWiMTaRCUM7yrK0YTiGkXDcxAFSxVCp4ZFeJm5lUw58:eCTa2KfoxoS/ZFeY5D
Threatray 6 similar samples on MalwareBazaar
TLSH T1BC35E0C23B36731ADEB96A35D659DDB542A12D78B000BAF75ADD3793329C2119E0CF02
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
File icon (PE):PE icon
dhash icon d8c1e4bcaebedc0c (2 x Formbook, 1 x DarkCloud)
Reporter threatcat_ch
Tags:DarkCloud exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
1'062
Origin country :
CH CH
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67918ffcb5602ee8cdafc3b4
Tags:
underscore micro shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67918dc620420d678c404192/reports/95f027fb-53a4-4d1d-9377-f97d65e3df7a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/99580492-fc01-4946-ac98-8c0fd287a8e2
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1597185
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes or reads registry keys via WMI
Yara detected AntiVM3
Yara detected DarkCloud
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1597185 Sample: payment receipt__pdf.exe Startdate: 23/01/2025 Architecture: WINDOWS Score: 100 48 showip.net 2->48 50 Found malware configuration 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 10 other signatures 2->56 8 payment receipt__pdf.exe 7 2->8         started        12 hDchbbvbrG.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\hDchbbvbrG.exe, PE32 8->38 dropped 40 C:\Users\...\hDchbbvbrG.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmp64B7.tmp, XML 8->42 dropped 44 C:\Users\...\payment receipt__pdf.exe.log, ASCII 8->44 dropped 58 Adds a directory exclusion to Windows Defender 8->58 60 Injects a PE file into a foreign processes 8->60 14 powershell.exe 22 8->14         started        17 payment receipt__pdf.exe 19 8->17         started        20 schtasks.exe 1 8->20         started        62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 66 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->66 68 Writes or reads registry keys via WMI 12->68 22 hDchbbvbrG.exe 20 12->22         started        24 schtasks.exe 1 12->24         started        26 hDchbbvbrG.exe 12->26         started        28 hDchbbvbrG.exe 12->28         started        signatures6 process7 dnsIp8 70 Loading BitLocker PowerShell Module 14->70 30 conhost.exe 14->30         started        46 showip.net 162.55.60.2, 49720, 49721, 80 ACPCA United States 17->46 32 conhost.exe 20->32         started        72 Tries to harvest and steal browser information (history, passwords, etc) 22->72 34 WmiPrvSE.exe 22->34         started        36 conhost.exe 24->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-01-22 21:27:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sddnuoalhxkxeesvrgudieo2w6k2b3fdubpy623f2sb2dfbzzsea._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
Similar samples:
51b91109d6f022b088c42ca6d7ce0ea03a02ca7b27e8911b907c21cd04a768a8
DarkCloud
ecf997a68f6098587e56becfd86670f1c1a5b8d9d9ff2fe25fd10476150dcfd4
DarkCloud
eedaaf2fdcba657c91fc94b16cf7cdac76a14e510c3f7d951d3b15b24de9536b
DarkCloud
error
DarkCloud
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery execution stealer
Link:
https://tria.ge/reports/250123-at2tmstqhj/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
DarkCloud
Darkcloud family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bed72251-32b4-49d0-9a64-dda97c174e9f
Unpacked files
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Link:
https://www.unpac.me/results/89d5cfa9-4209-49a6-ab9c-ed2ee185797d/
SH256 hash:
9850d8db84c66656ba2678c7c7ab4bccbb56ec63befd4bd6c5f9ee87f5d915a0
MD5 hash:
2d8b08203a9bfbc797950355498b4c09
SHA1 hash:
9ad72f023506ed0f4a8650ba287f1e0c46687452
Detections:
darkcloudstealer
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
MALWARE_Win_DarkCloud
Create hunting rule
Link:
https://www.unpac.me/results/89d5cfa9-4209-49a6-ab9c-ed2ee185797d/
SH256 hash:
5b804ce88a3aafaee948ff85aece3339d9cd90b79cb665a6972f44ca47b38895
MD5 hash:
ac6eb7970079567c12526835197bc2cc
SHA1 hash:
425a4f1b86da5d86fe80ee5768d7f4e31c7e0928
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/89d5cfa9-4209-49a6-ab9c-ed2ee185797d/
SH256 hash:
7302b61a589b5ad6779d8fde27362675f542a588f08d350ff1f085837c73ccd6
MD5 hash:
0e2a287b47daba65ca2fa7b952cc95a2
SHA1 hash:
3fb90f337febe7e2e81bccb429c198bee21391a4
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/89d5cfa9-4209-49a6-ab9c-ed2ee185797d/
SH256 hash:
90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88
MD5 hash:
ca0c194a1f62934de4394205125b4076
SHA1 hash:
fd147e54360e5cbf0801a254a69c9ea80c621ca7
Link:
https://www.unpac.me/results/89d5cfa9-4209-49a6-ab9c-ed2ee185797d/
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/90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88

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:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:MALWARE_Win_DarkCloud
Create hunting rule
Author:ditekSHen
Description:Detects DarkCloud infostealer
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:ProtectSharewareV11eCompservCMS
Create hunting rule
Author:malware-lu
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:Windows_Trojan_DarkCloud_9905abce
Create hunting rule
Author:Elastic Security

File information

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

Malspam

DarkCloud

Executable exe 90c6da380b3dd572125589a83411dab795a0eca3a05f8f6b65d483a19439cc88

(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 (HIGH_ENTROPY_VA)high

Comments