MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b. 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: 19


Intelligence 19 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b
SHA3-384 hash: 12955ce4bef42f5eaffff0ec45491af16d182f5e7fda0746c4744c3c3e2db2f4959fa4a52ae86c38ad0654bb877ca1f5
SHA1 hash: a8c7e14800cf6d7a5140c22e6d34bb76275e38ae
MD5 hash: 88112987854f5a3bd04516f6a3334880
humanhash: south-beryllium-twelve-fourteen
File name:file
Download: download sample
Signature Stop
Create hunting rule
File size:707'584 bytes
First seen:2024-07-04 15:26:05 UTC
Last seen:2024-07-04 16:19:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 26b20b2808041724a94fb2624d73bdc4 (1 x Stop)
ssdeep 12288:Ryxs0QrMKlM/zKo0Bjfym1Eewp7W57D56GSLM9LFZ0BMR1Dt44Sf/C7+GmZec8L7:0EyzKo0Bjpey5X5CMWMxthS/C7fcW7
Threatray 1'569 similar samples on MalwareBazaar
TLSH T1ACE412607AF68132F7F79A341BB4A7F00A7FB9633A74D18D22C0129E4E256C19E59317
TrID 67.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.2% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 9671e896ccd0d4cc (9 x Smoke Loader, 3 x Stealc, 2 x Tofsee)
Reporter Bitsight
Tags:exe Stop


Avatar
Bitsight
url: https://vk.com/doc851967711_679029982?hash=RRZ3zIEE48FvFApwS2dWoi6kkUssEUrLIVHmJfTHI4c&dl=O8hX9CJxDBfJivwGR22slhNmHBDSBFVSNZy3HAflzBL&api=1&no_preview=1#fileotr

Intelligence

File Origin
# of uploads :
2
# of downloads :
369
Origin country :
US US
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b.exe
Verdict:
Malicious activity
Analysis date:
2024-07-04 15:26:33 UTC
Tags:
evasion ransomware stop djvu
Link:
https://app.any.run/tasks/8f05ff1c-1e65-42ae-a6d5-ba18616aa323

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.RansomX-gen.18799.18271.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6686bfae48eed605be6dc1bawin10vpnfull_triage
Tags:
Execution Infostealer Network Ransomware Stealth Instabot Stop
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Sending a TCP request to an infection source
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
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/6686bf48eae3878d8f3ce580/reports/e155e856-9685-4f86-aa7d-4359ba2cc111/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b
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/08c34f35-9175-4f68-a5f9-9917c9585564
Result
Threat name:
Babuk, Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1467752
Signature
AI detected suspicious sample
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 dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1467752 Sample: file.exe Startdate: 04/07/2024 Architecture: WINDOWS Score: 100 57 cajgtus.com 2->57 59 api.2ip.ua 2->59 65 Snort IDS alert for network traffic 2->65 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 8 other signatures 2->71 9 file.exe 2->9         started        12 file.exe 2->12         started        14 file.exe 2->14         started        16 file.exe 2->16         started        signatures3 process4 signatures5 81 Detected unpacking (changes PE section rights) 9->81 83 Detected unpacking (overwrites its own PE header) 9->83 85 Writes a notice file (html or txt) to demand a ransom 9->85 93 2 other signatures 9->93 18 file.exe 1 17 9->18         started        87 Multi AV Scanner detection for dropped file 12->87 89 Machine Learning detection for dropped file 12->89 91 Injects a PE file into a foreign processes 12->91 22 file.exe 12->22         started        25 file.exe 14->25         started        27 file.exe 16->27         started        process6 dnsIp7 61 api.2ip.ua 188.114.97.3, 443, 49730, 49731 CLOUDFLARENETUS European Union 18->61 39 C:\Users\user\AppData\Local\...\file.exe, PE32 18->39 dropped 41 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 18->41 dropped 29 file.exe 18->29         started        32 icacls.exe 18->32         started        43 C:\Users\user\_readme.txt, ASCII 22->43 dropped 45 C:\Users\user\Desktop\...\ONBQCLYSPU.pdf, data 22->45 dropped 47 C:\Users\user\AppData\Local\...\_readme.txt, ASCII 22->47 dropped 79 Modifies existing user documents (likely ransomware behavior) 22->79 file8 signatures9 process10 signatures11 95 Injects a PE file into a foreign processes 29->95 34 file.exe 1 20 29->34         started        process12 dnsIp13 63 cajgtus.com 179.53.197.185, 49733, 49734, 80 CompaniaDominicanadeTelefonosSADO Dominican Republic 34->63 49 C:\_readme.txt, ASCII 34->49 dropped 51 C:\Users\user\...\wctF86A.tmp.watz (copy), MS-DOS 34->51 dropped 53 C:\Users\user\...\wctF411.tmp.watz (copy), data 34->53 dropped 55 41 other malicious files 34->55 dropped 73 Tries to harvest and steal browser information (history, passwords, etc) 34->73 75 Infects executable files (exe, dll, sys, html) 34->75 77 Modifies existing user documents (likely ransomware behavior) 34->77 file14 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b/
Threat name:
Win32.Ransomware.Stop
Create hunting rule
Status:
Malicious
First seen:
2024-07-04 00:37:49 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rt3byzvrzxuvv7oeaicacuvtziacf7hlqzvyjprjovzhbcyiznnq._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
Stop
6a455892dc6b808ff4f012010f20ad4bbf16b881b9c235d98c85565591289012
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83c4c80adbeb1d8411e49c1d14a886af6a26c9fb9827d8852d4e45e4a5f09b17
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a0038a7651f4408728f4a8c7a2abe43b237fc9dc6645fa34e5c4d9c212658878
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d46fec4abba46efe6663f19c2d9963a612f4ff25023c0dc6fc5bb559f106859d
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+ 1'559 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware
Link:
https://tria.ge/reports/240704-svqrwaycpp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Modifies file permissions
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://cajgtus.com/test1/get.php
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ff6f2779-24aa-42e4-96d1-65570aee4c2f
Unpacked files
SH256 hash:
cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e
MD5 hash:
5230bc2f8f129c1cdcaa87821ef38b6d
SHA1 hash:
94c4e81a6d6ed0bc98ed7448cf60c3d2142ef32e
Detections:
djvu_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
SUSP_XORed_URL_In_EXE
Create hunting rule
MALWARE_Win_STOP
Create hunting rule
Link:
https://www.unpac.me/results/3123ef30-fec3-4379-9c2b-0bc8a88492c7/
Parent samples :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 hash:
8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b
MD5 hash:
88112987854f5a3bd04516f6a3334880
SHA1 hash:
a8c7e14800cf6d7a5140c22e6d34bb76275e38ae
Link:
https://www.unpac.me/results/3123ef30-fec3-4379-9c2b-0bc8a88492c7/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8cf61c66b1cd/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/8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b

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

File information

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

Web download

Stop

Executable exe 8cf61c66b1cde95afdc402040152b3ca0022fceb866b84be297572708b08cb5b

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download

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::FindFirstVolumeA
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::ReadConsoleOutputA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::SetVolumeMountPointA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameA

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