MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20631b192dc31da8cccef7598982ef7f7d11b4b10266446c247bedd3e0936ca4. 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: 12


Intelligence 12 IOCs YARA 12 File information Comments

SHA256 hash: 20631b192dc31da8cccef7598982ef7f7d11b4b10266446c247bedd3e0936ca4
SHA3-384 hash: 7279d0d4b140caa8dda038f6361277568d8e30470110f89181f4f377d5ed0b2f8c55bf067a7a69496bb0152fcdc5e608
SHA1 hash: cb36b6df85ab65eb98154c794ea8f24a99baf4f9
MD5 hash: 79a5c9f3cf11774f416c6095959e0e8a
humanhash: bravo-earth-charlie-ten
File name:20631b192dc31da8cccef7598982ef7f7d11b4b10266446c247bedd3e0936ca4
Download: download sample
Signature DarkCloud
File size:1'346'560 bytes
First seen:2025-03-14 07:31:34 UTC
Last seen:2025-03-14 08:32:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 24576:hcVToJmtRCEOkvuAYE+va80cAVvoRMZdWrbdUAlTFeety:h6kmG9AYE+v3jAqRJ3lJem
TLSH T1D4552211DFF8C776CBBE26361AC782129F21CB07A087970F5C9995B1F6432193E5239A
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 adrian__luca
Tags:DarkCloud exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
398
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
20631b192dc31da8cccef7598982ef7f7d11b4b10266446c247bedd3e0936ca4
Verdict:
Malicious activity
Analysis date:
2025-03-14 07:29:18 UTC
Tags:
stealer evasion darkcloud upx autorun-startup

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %AppData% directory
Launching a process
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Stealing user critical data
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
DarkCloud
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
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
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
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1638131 Sample: rew4EH1pII.exe Startdate: 14/03/2025 Architecture: WINDOWS Score: 100 28 showip.net 2->28 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus / Scanner detection for submitted sample 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 8 other signatures 2->38 8 rew4EH1pII.exe 5 2->8         started        12 wscript.exe 1 2->12         started        signatures3 process4 file5 22 C:\Users\user\AppData\...\BinaryLength.exe, PE32 8->22 dropped 24 C:\Users\user\AppData\...\BinaryLength.vbs, ASCII 8->24 dropped 26 C:\Users\...\BinaryLength.exe:Zone.Identifier, ASCII 8->26 dropped 40 Drops VBS files to the startup folder 8->40 42 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->42 44 Writes to foreign memory regions 8->44 46 Injects a PE file into a foreign processes 8->46 14 InstallUtil.exe 15 8->14         started        48 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->48 18 BinaryLength.exe 2 12->18         started        signatures6 process7 dnsIp8 30 showip.net 162.55.60.2, 49696, 80 ACPCA United States 14->30 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->50 52 Tries to steal Mail credentials (via file / registry access) 14->52 54 Tries to harvest and steal browser information (history, passwords, etc) 14->54 56 Antivirus detection for dropped file 18->56 58 Multi AV Scanner detection for dropped file 18->58 20 InstallUtil.exe 18->20         started        signatures9 process10
Threat name:
Win32.Exploit.Generic
Status:
Malicious
First seen:
2025-03-13 14:36:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
darkcloud
YARA:
n/a
Unpacked files
SH256 hash:
20631b192dc31da8cccef7598982ef7f7d11b4b10266446c247bedd3e0936ca4
MD5 hash:
79a5c9f3cf11774f416c6095959e0e8a
SHA1 hash:
cb36b6df85ab65eb98154c794ea8f24a99baf4f9
SH256 hash:
26363a97984659c16067fcfaf521ccfc5d7c7fc2a72cec57cc76b6123cb1d226
MD5 hash:
1ce7e828101e75f447832f18679bda35
SHA1 hash:
0eb9dec4f7bd8e86d6494f7c2805338e6825c292
SH256 hash:
9125d3a4d29c7352ef06383206cbaf433265711053f56a4b1f3bbf93ab0a8488
MD5 hash:
b27701e294eed2be594cb13ba2d6cc78
SHA1 hash:
39e8f34b56a35bc483901f9d24bf0e13c4290fd4
SH256 hash:
78f73e1734daa918b253517c75971fbb8df773a3d77d02a752e9a0ad1711a677
MD5 hash:
f9d2985aa1c41cca281321fffb5ed424
SHA1 hash:
3a7a58d2dcae2762882357ae34d372744b1dbb9d
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
SH256 hash:
6ee3a11e9b99d5fc5248a4e60a057d8f200b0b3a5b6cf8b66d779da147e1b126
MD5 hash:
f3f09f469b7ddf3db8d9ab7131923dca
SHA1 hash:
e0ab0b3e7e22e9de4b689782be0f744fcfdbe922
SH256 hash:
3b75425895af4ae3186b36277553641e37ca1d620ae18d68e40d13351b54de6a
MD5 hash:
94d1531b52774dce52a89e33646d5b1d
SHA1 hash:
29bf887b025b97bd7a9e1e261852ba824234a625
Please note that we are no longer able to provide a coverage score for Virus Total.

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_EXE_Packed_Fody
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:ProtectSharewareV11eCompservCMS
Author:malware-lu
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vba
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:Windows_Trojan_DarkCloud_9905abce
Author:Elastic Security

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 (GUARD_CF)high

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