MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391. 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


Stop


Vendor detections: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391
SHA3-384 hash: 325789bfd5ae49d9522df01343ce273ce53c28e9adf3b3be129664d0ec9fbeae46c070012915ebbae221218d12dd4b7b
SHA1 hash: 62f403f1550a6d9534c226dcf06ef80802070510
MD5 hash: 44a433365d505523abf954a74b4c1343
humanhash: steak-golf-montana-delaware
File name:BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe
Download: download sample
Signature Stop
Create hunting rule
File size:845'312 bytes
First seen:2024-07-24 21:03:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a0ac95739c763bb58b1023ed75bb0bb7 (3 x Stop, 1 x Smoke Loader, 1 x Worm.Ramnit)
ssdeep 12288:gvuSV90FUjXlq5wltoyRrFPiOIA8PGm5twpzx3Z9Sdd3anwcyy:gvx+FUjXgUJ9iOwr5U39jwNy
Threatray 1'616 similar samples on MalwareBazaar
TLSH T1640522627571C4B2E9AA4530B120EBA26BFF75301879C00B3FB44BAD1D613D1E6B670B
TrID 41.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
22.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
11.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 5c599a3ce0c1c850 (36 x RedLineStealer, 27 x Stop, 21 x Smoke Loader)
Reporter Anonymous
Tags:exe Stop


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
306
Origin country :
CN CN
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.Asprotect-3
Create hunting rule

Win.Virus.Wapomi-9802127-0
Create hunting rule

Win.Packed.Ransomx-9942100-0
Create hunting rule

Win.Packed.Crypterx-9942101-0
Create hunting rule

Win.Packed.Strab-9942213-0
Create hunting rule

Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Win.Malware.Wapomi-10020301-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a16c45cb3d02fa0e495fb5
Tags:
Execution Generic Infostealer Network Ransomware Static Stealth Stop
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Changing an executable file
Creating a window
Sending an HTTP GET request to an infection source
Unauthorized injection to a recently created process
Restart of the analyzed sample
Sending a TCP request to an infection source
Modifying an executable file
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
Query of malicious DNS domain
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Infecting executable files
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/66a16c43dfa8b2fced4e27c6/reports/422ac31f-8032-4fa0-b82a-0866bcf6dbb4/overview
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.
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c1c56102-f72c-416d-bf11-626a03c824f5
Result
Threat name:
Babuk, Bdaejec, Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1480763
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
PE file contains section with special chars
PE file has a writeable .text section
Uses known network protocols on non-standard ports
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Yara detected Bdaejec
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1480763 Sample: BF4DCAFE30C748D3AE356DACAEE... Startdate: 24/07/2024 Architecture: WINDOWS Score: 100 70 zerit.top 2->70 72 fuyt.org 2->72 74 2 other IPs or domains 2->74 84 Found malware configuration 2->84 86 Malicious sample detected (through community Yara rule) 2->86 88 Antivirus detection for URL or domain 2->88 90 13 other signatures 2->90 9 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 1 2->9         started        13 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 2->13         started        15 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 2->15         started        17 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 2->17         started        signatures3 process4 file5 60 C:\Users\user\AppData\Local\Temp\akBiYx.exe, PE32 9->60 dropped 100 Detected unpacking (changes PE section rights) 9->100 102 Detected unpacking (overwrites its own PE header) 9->102 104 Writes a notice file (html or txt) to demand a ransom 9->104 108 2 other signatures 9->108 19 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 1 16 9->19         started        23 akBiYx.exe 14 9->23         started        106 Injects a PE file into a foreign processes 13->106 26 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 13->26         started        28 akBiYx.exe 15->28         started        30 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 15->30         started        32 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 17->32         started        signatures6 process7 dnsIp8 76 api.2ip.ua 188.114.96.3, 443, 49705, 49712 CLOUDFLARENETUS European Union 19->76 50 BF4DCAFE30C748D3AE...5FD4EA12D77B505.exe, PE32 19->50 dropped 52 BF4DCAFE30C748D3AE...exe:Zone.Identifier, ASCII 19->52 dropped 34 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 19->34         started        37 icacls.exe 19->37         started        78 ddos.dnsnb8.net 44.221.84.105, 49704, 49728, 49730 AMAZON-AESUS United States 23->78 54 C:\Program Files\7-Zip\Uninstall.exe, PE32 23->54 dropped 56 C:\Program Files (x86)\AutoIt3\...\SciTE.exe, PE32 23->56 dropped 58 C:\Program Files (x86)\AutoIt3\...\MyProg.exe, MS-DOS 23->58 dropped 92 Antivirus detection for dropped file 23->92 94 Detected unpacking (changes PE section rights) 23->94 96 Machine Learning detection for dropped file 23->96 98 Infects executable files (exe, dll, sys, html) 23->98 39 WerFault.exe 19 16 23->39         started        41 cmd.exe 28->41         started        file9 signatures10 process11 signatures12 82 Injects a PE file into a foreign processes 34->82 43 BF4DCAFE30C748D3AE356DACAEE3C6D33D949E6A6C53DEC1F5FD4EA12D77B505.exe 19 34->43         started        48 conhost.exe 41->48         started        process13 dnsIp14 80 zerit.top 92.246.89.93, 49713, 49715, 49718 LIVECOMM-ASRespublikanskayastr3k6RU Russian Federation 43->80 62 C:\_readme.txt, ASCII 43->62 dropped 64 C:\Users\user\_readme.txt, ASCII 43->64 dropped 66 C:\Users\user\...\wctFE34.tmp.eyrv (copy), MS-DOS 43->66 dropped 68 49 other malicious files 43->68 dropped 110 Modifies existing user documents (likely ransomware behavior) 43->110 file15 signatures16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391/
Threat name:
Win32.Virus.Jadtre
Create hunting rule
Status:
Malicious
First seen:
2024-07-24 21:04:12 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2op7yuuirdnoyl3e4erkqyxz52hde7mqjz5vdj6orgs7onbswoiq._file
Verdict:
malicious
Similar samples:
786bb21f95e657b07a7bfb151e4e0d0f27fe443ac855e467e9b7d3fa643c62ab
Stop
7e55984b301bf836995807293d281046d0d14f26e113727e2cc8e993f0de45a8
Stop
7fb707b6080c884faf366ba8e885c37e68ada8cd96bbc4897a7df0ab00c17270
Stop
bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
Stop
df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080
Stop
+ 1'606 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu aspackv2 discovery persistence ransomware
Link:
https://tria.ge/reports/240724-zwkqksxalr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
ASPack v2.12-2.42
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://fuyt.org/test1/get.php
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7e255990-44cc-4fd9-8b6b-7f5a1a2d0737
Unpacked files
SH256 hash:
93343957dec8d49678757b810895f8247a08a495c94fbbef971b4bb91992edf6
MD5 hash:
e65bb12bb7aadbde6ca7e64435c2670b
SHA1 hash:
2d42d7c9ba87efefeb96b424ede4d87a5d07a241
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
SUSP_XORed_URL_In_EXE
Create hunting rule
Link:
https://www.unpac.me/results/0b8d89a4-8c16-4937-b4ee-324eb65585e8/
Parent samples :
12559af5c2c626b4e492751a8235076667926d41d6a29d1792e8ce65164fc42c
bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505
1afa618ea5e953019173b3d0b4dad9082cefc71578b06e217ad58e4d6f7fdac3
334b8a74d8431027e9a01439ec7ef905e4b6899498d7a9995b3f718aedcfdfaa
bf8cc404ed07bc76b18996c161102766ace54b7d961931e94aca144456425caf
26732fab7a1410e958a80a6e776504f3f850cd8ce133ab8aab515af8bcea547e
bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391
SH256 hash:
96602b263ee18595c7fa144c10fee2eac52d29c191ba632e2947393f27c8f30a
MD5 hash:
80996370e89a52952517105092e7e5a9
SHA1 hash:
1cc41284b205cc2c09a293b2ef0ec9b23c48e9e8
Detections:
win_unidentified_045_auto
Create hunting rule
win_unidentified_045_g0
Create hunting rule
Link:
https://www.unpac.me/results/0b8d89a4-8c16-4937-b4ee-324eb65585e8/
SH256 hash:
d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391
MD5 hash:
44a433365d505523abf954a74b4c1343
SHA1 hash:
62f403f1550a6d9534c226dcf06ef80802070510
Link:
https://www.unpac.me/results/0b8d89a4-8c16-4937-b4ee-324eb65585e8/
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/d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Stop

Executable exe d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391

(this sample)

  
Link
https://bbs.kafan.cn/forum-31-1.html
  
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
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetConsoleWindowInfo
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryExW
KERNEL32.dll::CreateFileA
KERNEL32.dll::ReplaceFileA
KERNEL32.dll::GetSystemDirectoryW

Comments