MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4
SHA3-384 hash: 2c43786371f3fb48e55e33f2666b92807974e5d9e9a296eab1cb128fac3824f9d485fd29391e1e00cb3540ad0c51ae9b
SHA1 hash: bfb001b1475b7fc09c25456b6dee4e0ba8b775b9
MD5 hash: bb2d433f166baa1cbc1e7a84cbd21750
humanhash: bravo-west-lamp-autumn
File name:25031011NO7l.pdf (43 KB).exe
Download: download sample
Signature DarkCloud
Create hunting rule
File size:987'648 bytes
First seen:2025-04-09 13:15:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b2c200f5e4fd63f73dca30ad3ac2c240 (14 x LummaStealer, 1 x DarkCloud)
ssdeep 12288:gwUwBIZ+x5TmTDaF+baUNGZQ64TcoekVLo/Va8apJzZfVTbSDeprutfKghfqzTC1:gwlIExtUXbaVQfcZe1ZVNZ8fLW
TLSH T12625CF16619692DEF19550B22B88A270B477F963873D5BFF80F0E325180AED41F3E726
TrID 63.5% (.EXE) Win64 Executable (generic) (10522/11/4)
12.2% (.EXE) OS/2 Executable (generic) (2029/13)
12.0% (.EXE) Generic Win/DOS Executable (2002/3)
12.0% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter TeamDreier
Tags:DarkCloud exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
436
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
25031011NO7l.pdf (43 KB).exe
Verdict:
Malicious activity
Analysis date:
2025-04-09 14:37:45 UTC
Tags:
upx ims-api generic darkcloud stealer
Link:
https://app.any.run/tasks/3c487638-23f1-486a-baff-cf351f0d3468

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
DarkCloud
Create hunting rule
Link:
https://www.capesandbox.com/analysis/1366/
Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f6792e71beff15dcce3015
Tags:
virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Using the Windows Management Instrumentation requests
Stealing user critical data
Setting a single autorun event
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
crypt lolbin microsoft_visual_cc packed packed packer_detected remote
Link:
https://www.filescan.io/uploads/67f67319b070fb3f94612de6/reports/b8eea172-a7fa-4f21-a353-46dcf4e11d15/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1b3d662b-df1e-478b-bd68-8c1a69e2a439
Result
Threat name:
DarkCloud
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1660858
Signature
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
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
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Writes or reads registry keys via WMI
Writes to foreign memory regions
Yara detected DarkCloud
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1660858 Sample: 25031011NO7l.pdf (43 KB).exe Startdate: 09/04/2025 Architecture: WINDOWS Score: 100 27 pki-goog.l.google.com 2->27 29 c.pki.goog 2->29 35 Found malware configuration 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected DarkCloud 2->39 41 4 other signatures 2->41 8 25031011NO7l.pdf (43 KB).exe 2->8         started        11 fireblende.exe 2 2->11         started        13 fireblende.exe 1 2->13         started        signatures3 process4 signatures5 43 Writes to foreign memory regions 8->43 45 Allocates memory in foreign processes 8->45 47 Injects a PE file into a foreign processes 8->47 15 MSBuild.exe 1 4 8->15         started        19 conhost.exe 11->19         started        21 conhost.exe 13->21         started        process6 file7 25 C:\Users\user\AppData\...\fireblende.exe, PE32 15->25 dropped 31 Tries to harvest and steal browser information (history, passwords, etc) 15->31 33 Writes or reads registry keys via WMI 15->33 23 WmiPrvSE.exe 15->23         started        signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4/
Threat name:
Win64.Trojan.LummaStealer
Create hunting rule
Status:
Malicious
First seen:
2025-04-09 01:21:19 UTC
File Type:
PE+ (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jogkc7gt27u62f5wch2q6wd6t2wxkt7mtlmqureqos7sli7a27sa._file
Result
Malware family:
darkcloud
Create hunting rule
Score:
  10/10
Tags:
family:darkcloud discovery stealer
Link:
https://tria.ge/reports/250409-qhxcsa1wht/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
DarkCloud
Darkcloud family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ad29f14e-6b99-4ee6-b141-a287cc180fe8
Unpacked files
SH256 hash:
4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4
MD5 hash:
bb2d433f166baa1cbc1e7a84cbd21750
SHA1 hash:
bfb001b1475b7fc09c25456b6dee4e0ba8b775b9
Link:
https://www.unpac.me/results/c81d09e0-eb22-44c4-918f-d2795c9bd5d6/
Malware family:
DarkCloud
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b8ca17cd3d7/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/4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
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)

File information

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

Malspam

DarkCloud

Executable exe 4b8ca17cd3d7e9ed17b611f50f587e9ead754fec9ad90a449074bf25a3e0d7e4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/1366/

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
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolWork
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW

Comments