MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c. 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: bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
SHA3-384 hash: 69337329f89d9008fa014b653fd3451168ffc2fb6c8d9318355e4932cbd4917fe9d8ee161abe2099bb9d5942e4766baf
SHA1 hash: c1b2d8ee90d3d08986f3bf77cca9d4c7448d9667
MD5 hash: af65ccf76bb0453e85a1019150294bec
humanhash: wisconsin-ink-neptune-avocado
File name:12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe
Download: download sample
Signature Stop
Create hunting rule
File size:844'800 bytes
First seen:2024-07-24 11:24:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fe3b174fa1083151aea39118cb091acc (2 x Stop, 1 x RedLineStealer)
ssdeep 12288:VzedirmqkssQkACWe52If6Yli2ZuYr1yRqz2e+6MUcfPDHYe1IO7151N/BGg9:VzrmsB5zIS81oAv+6MtPD4eiOztp9
Threatray 1'575 similar samples on MalwareBazaar
TLSH T1A00523223B92C472C04B1570A454CEB68B7F38325A2958977B75037E5F707C29DFA3AA
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 5c59da3ce0c1c850 (36 x Stop, 33 x Smoke Loader, 26 x RedLineStealer)
Reporter Anonymous
Tags:exe Stop


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
330
Origin country :
FR FR
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.Asprotect-3
Create hunting rule

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

Win.Packed.Crypterx-9942098-0
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=66a0e499a97e13ad9de7aac9
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/66a0e4975568402317152a45/reports/fdc924ad-5ac3-4f1a-93b2-8f1c5bc294a2/overview
Verdict:
Malicious
Labled as:
Wapomi.BA virus
Link:
https://www.hybrid-analysis.com/sample/bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
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/b2863ddc-9638-4fcb-be3f-8d466f5c6d97
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/1479961
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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: 1479961 Sample: 12559AF5C2C626B4E492751A823... 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 Multi AV Scanner detection for domain / URL 2->84 86 Found malware configuration 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 14 other signatures 2->90 9 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 1 2->9         started        13 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 2->13         started        15 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 2->15         started        17 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 2->17         started        signatures3 process4 file5 60 C:\Users\user\AppData\Local\Temp\lYz.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 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 1 17 9->19         started        23 lYz.exe 14 9->23         started        106 Injects a PE file into a foreign processes 13->106 26 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 13->26         started        28 lYz.exe 15->28         started        30 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 15->30         started        32 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 17->32         started        signatures6 process7 dnsIp8 76 api.2ip.ua 188.114.96.3, 443, 49705, 49712 CLOUDFLARENETUS European Union 19->76 50 12559AF5C2C626B4E4...2E8CE65164FC42C.exe, PE32 19->50 dropped 52 12559AF5C2C626B4E4...exe:Zone.Identifier, ASCII 19->52 dropped 34 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 19->34         started        37 icacls.exe 19->37         started        78 ddos.dnsnb8.net 44.221.84.105, 49704, 49729, 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 Multi AV Scanner detection for dropped file 23->94 96 Detected unpacking (changes PE section rights) 23->96 98 2 other signatures 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 12559AF5C2C626B4E492751A8235076667926D41D6A29D1792E8CE65164FC42C.exe 20 34->43         started        48 conhost.exe 41->48         started        process13 dnsIp14 80 zerit.top 92.246.89.93, 49714, 49715, 49717 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 Infects executable files (exe, dll, sys, html) 43->110 112 Modifies existing user documents (likely ransomware behavior) 43->112 file15 signatures16
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c/
Threat name:
Win32.Virus.Jadtre
Create hunting rule
Status:
Malicious
First seen:
2024-07-24 12:21:02 UTC
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x53r3yocubsmu6wpjtwl523kj4rysw7py2akoz2h7ct4pr6d3aga._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
Stop
6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
Stop
83c4c80adbeb1d8411e49c1d14a886af6a26c9fb9827d8852d4e45e4a5f09b17
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a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
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d46fec4abba46efe6663f19c2d9963a612f4ff25023c0dc6fc5bb559f106859d
Stop
+ 1'565 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-nja5tstfml/
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/dc14e322-0a66-4579-adee-8fda8005621d
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/3ebd5b74-cca6-4050-a3e2-433ce2e1d94e/
Parent samples :
12559af5c2c626b4e492751a8235076667926d41d6a29d1792e8ce65164fc42c
bf4dcafe30c748d3ae356dacaee3c6d33d949e6a6c53dec1f5fd4ea12d77b505
1afa618ea5e953019173b3d0b4dad9082cefc71578b06e217ad58e4d6f7fdac3
334b8a74d8431027e9a01439ec7ef905e4b6899498d7a9995b3f718aedcfdfaa
bf8cc404ed07bc76b18996c161102766ace54b7d961931e94aca144456425caf
26732fab7a1410e958a80a6e776504f3f850cd8ce133ab8aab515af8bcea547e
bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
d39ffc528888daec2f64e122a862f9ee8e327d904e7b51a7ce89a5f73432b391
SH256 hash:
ffe284b816a64292b6a83afefd4e0de7a9873aba21c17b4cef7126543b17ce5c
MD5 hash:
a51b7064c70b1c5d7443aba4eb1d9aab
SHA1 hash:
05af57f1b4bc75e46bbff949206cad7621af1739
Detections:
win_unidentified_045_auto
Create hunting rule
win_unidentified_045_g0
Create hunting rule
Link:
https://www.unpac.me/results/3ebd5b74-cca6-4050-a3e2-433ce2e1d94e/
SH256 hash:
bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c
MD5 hash:
af65ccf76bb0453e85a1019150294bec
SHA1 hash:
c1b2d8ee90d3d08986f3bf77cca9d4c7448d9667
Link:
https://www.unpac.me/results/3ebd5b74-cca6-4050-a3e2-433ce2e1d94e/
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: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 bf771de1c2a064ca7acf4cecbeeb6a4f23895befc680a76747f8a7c7c7c3d80c

(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_NXMissing Non-Executable Memory Protectioncritical
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