MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98. 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: 17


Intelligence 17 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98
SHA3-384 hash: ee8bfeb984f6300bd21aae4cad0398630e3dcb502f668fc3747295f408ae82b8b7172428fd8df9278207ece578711e58
SHA1 hash: b5ccf6b61a3a249d3ecace9a67ca0e160a708ca0
MD5 hash: 8ac8f1e92fa8942ba8e35e67b760d40a
humanhash: october-jupiter-floor-mockingbird
File name:rMarch1703202025_pdf.exe
Download: download sample
Signature DarkCloud
Create hunting rule
File size:997'376 bytes
First seen:2025-03-17 17:30:06 UTC
Last seen:2025-03-17 18:34:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:Svyyhq9zncgysmIOOXv+wah6T2O5Germ:Svyz9zncgysmIOOXPaXm
TLSH T17925F01EBA159B76C64C1F7FC403151882E28493DBB2F26E4ED91CE2087DB69C51F68B
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter FXOLabs
Tags:DarkCloud exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
471
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rMarch1703202025_pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-03-17 17:36:12 UTC
Tags:
stealer evasion autorun-sched
Link:
https://app.any.run/tasks/13ef2543-0ae7-4700-a296-e1e6c0fb3e7f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d8682c3962f1a6f47263e9
Tags:
underscore micro shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Stealing user critical data
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 obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67d85c270a7899f3579a30bf/reports/f3cfc022-de31-4b13-8943-4ecf8714ab49/overview
Verdict:
Malicious
Labled as:
HackTool[Obfuscator]/MSIL.DeepSea
Link:
https://www.hybrid-analysis.com/sample/a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98
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.
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/13d88c68-0a9b-4a31-a25d-a5f371ce0be0
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1640794
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
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
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
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 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1640794 Sample: rMarch1703202025_pdf.exe Startdate: 17/03/2025 Architecture: WINDOWS Score: 100 53 ftp.dorasanat.com.tr 2->53 55 dorasanat.com.tr 2->55 57 showip.net 2->57 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Antivirus / Scanner detection for submitted sample 2->73 75 11 other signatures 2->75 8 rMarch1703202025_pdf.exe 7 2->8         started        12 ULBVCUpp.exe 5 2->12         started        14 svchost.exe 2->14         started        signatures3 process4 dnsIp5 41 C:\Users\user\AppData\Roaming\ULBVCUpp.exe, PE32 8->41 dropped 43 C:\Users\...\ULBVCUpp.exe:Zone.Identifier, ASCII 8->43 dropped 45 C:\Users\user\AppData\Local\...\tmpCACE.tmp, XML 8->45 dropped 47 C:\Users\...\rMarch1703202025_pdf.exe.log, ASCII 8->47 dropped 77 Uses schtasks.exe or at.exe to add and modify task schedules 8->77 79 Adds a directory exclusion to Windows Defender 8->79 81 Injects a PE file into a foreign processes 8->81 17 rMarch1703202025_pdf.exe 20 8->17         started        21 powershell.exe 23 8->21         started        23 powershell.exe 23 8->23         started        25 schtasks.exe 1 8->25         started        83 Antivirus detection for dropped file 12->83 85 Multi AV Scanner detection for dropped file 12->85 27 ULBVCUpp.exe 12->27         started        29 schtasks.exe 12->29         started        59 127.0.0.1 unknown unknown 14->59 file6 signatures7 process8 dnsIp9 49 dorasanat.com.tr 213.238.183.80, 21, 49686, 49690 CENUTATR Turkey 17->49 51 showip.net 162.55.60.2, 49683, 49684, 80 ACPCA United States 17->51 61 Loading BitLocker PowerShell Module 21->61 31 conhost.exe 21->31         started        33 WmiPrvSE.exe 21->33         started        35 conhost.exe 23->35         started        37 conhost.exe 25->37         started        63 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->63 65 Tries to steal Mail credentials (via file / registry access) 27->65 67 Tries to harvest and steal browser information (history, passwords, etc) 27->67 39 conhost.exe 29->39         started        signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u65knbmdmyrvss2uuuy22rqja7bdaklu6hzzg52qdjxk7moo7sma._file
Verdict:
malicious
Label(s):
darkcloudstealer
Create hunting rule
unc_loader_037
Create hunting rule
Similar samples:
error
DarkCloud
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery execution spyware stealer upx
Link:
https://tria.ge/reports/250317-v28mdayqt9/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
UPX packed file
ACProtect 1.3x - 1.4x DLL software
Checks computer location settings
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Command and Scripting Interpreter: PowerShell
DarkCloud
Darkcloud family
Verdict:
Malicious
Tags:
darkcloud
YARA:
n/a
Link:
https://app.threat.zone/submission/80535cc1-3867-4fd0-adf1-0dad846061ff
Unpacked files
SH256 hash:
a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98
MD5 hash:
8ac8f1e92fa8942ba8e35e67b760d40a
SHA1 hash:
b5ccf6b61a3a249d3ecace9a67ca0e160a708ca0
Link:
https://www.unpac.me/results/5da83f3c-cff0-4f91-a976-9e57c47f89a9/
SH256 hash:
fe5948c169101ee73cd9b51857180b1ab79bb8168f10a8524c75835428e8c4e9
MD5 hash:
3b520fe366fb22f341b910edfad0e958
SHA1 hash:
140578beed573067bcf32ed5249440558a917cc4
Detections:
darkcloudstealer
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_CC_Regex
Create hunting rule
MALWARE_Win_DarkCloud
Create hunting rule
Link:
https://www.unpac.me/results/5da83f3c-cff0-4f91-a976-9e57c47f89a9/
SH256 hash:
c11084afc7a40790f7cebd17fabf772316b0d54bed50ddeea25703ff71f9a07a
MD5 hash:
0ddfecf45e37e44f4e281f8da535342a
SHA1 hash:
264f54e08d40bf37702e8a080101fc42ce2dc595
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/5da83f3c-cff0-4f91-a976-9e57c47f89a9/
SH256 hash:
51ea9157b7cae4cdee16d6007e949dfdf833de7715f4b0bfbdd91b9cd1b5a82a
MD5 hash:
87b522966f156f38d9ff9fb09fe89ce2
SHA1 hash:
e0cf3a26b03e8affa99961cf95e9d5342cc5f98c
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/5da83f3c-cff0-4f91-a976-9e57c47f89a9/
Parent samples :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 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Link:
https://www.unpac.me/results/5da83f3c-cff0-4f91-a976-9e57c47f89a9/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a7baa6858366/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/a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98

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_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_CC_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
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:INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
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:telegram_bot_api
Create hunting rule
Author:rectifyq
Description:Detects file containing Telegram Bot API
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 a7baa685836623594b54a531ad460907c2302974f1f39377501a6eafb1cefc98

(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