MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e
SHA3-384 hash: d6a0358b7ec74b19031f14de25b6d42125a3ae0976ba1f69514b73da9cbe2c516edc0f9307cd88cf4cf72e7a478f3114
SHA1 hash: 918a6401d39ddcea8a9f34c37715deddf0e206ee
MD5 hash: 7265daee89e587ef7bfae3359391c6de
humanhash: rugby-arizona-pasta-whiskey
File name:file
Download: download sample
Signature Stop
Create hunting rule
File size:834'048 bytes
First seen:2024-05-28 14:18:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8652ae09cd41f3f67008d9ea632df14b (1 x Stop)
ssdeep 12288:XroYw+GVNfSQwgQWJeYldTogJGKDcX7kbpQW6tBxU2Vke7qs4vtP/XDVcM41:7ovFSQnICntcAwrU2b+13DVh4
Threatray 1'619 similar samples on MalwareBazaar
TLSH T10D05E052E2D33D94E6274B33CE3F96A8A75DFA908E59673E1218A90F04F44B1E163731
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 183264c0c084c800 (1 x Stop)
Reporter Bitsight
Tags:exe Stop


Avatar
Bitsight
url: https://vk.com/doc863235369_679721999?hash=TkNtFOxImcKNc0bE56AeZyJEzMjqh99cT5FsCWTlLeg&dl=DXyCP04DOc4ifExtuKlmJONpxuUw4bED2im8vnaiSZk&api=1&no_preview=1#file2005

Intelligence

File Origin
# of uploads :
1
# of downloads :
351
Origin country :
US US
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e.exe
Verdict:
Malicious activity
Analysis date:
2024-05-28 14:20:49 UTC
Tags:
evasion djvu ransomware stop
Link:
https://app.any.run/tasks/f7175cb7-f5ee-427f-a6ae-456596e7e4c9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6655e7f75721c8e527178304win7simulatehigh_evasion
Tags:
Banker Execution Network Ransomware Stealth 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:
fingerprint packed
Link:
https://www.filescan.io/uploads/6655e7dc9c0b71aaf52a2c0d/reports/675c02da-8725-48d8-aa18-e11f5e7f08c8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e
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/0152e55e-9e3c-4fb9-b363-e93c9b0e5808
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/1448919
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
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: 1448919 Sample: file.exe Startdate: 29/05/2024 Architecture: WINDOWS Score: 100 57 cajgtus.com 2->57 59 api.2ip.ua 2->59 67 Snort IDS alert for network traffic 2->67 69 Multi AV Scanner detection for domain / URL 2->69 71 Found malware configuration 2->71 73 10 other signatures 2->73 9 file.exe 2->9         started        12 file.exe 2->12         started        14 file.exe 2->14         started        16 3 other processes 2->16 signatures3 process4 signatures5 83 Detected unpacking (changes PE section rights) 9->83 85 Detected unpacking (overwrites its own PE header) 9->85 87 Writes a notice file (html or txt) to demand a ransom 9->87 97 2 other signatures 9->97 18 file.exe 1 17 9->18         started        89 Antivirus detection for dropped file 12->89 91 Multi AV Scanner detection for dropped file 12->91 93 Machine Learning detection for dropped file 12->93 22 file.exe 12->22         started        95 Injects a PE file into a foreign processes 14->95 25 file.exe 14->25         started        27 file.exe 16->27         started        29 file.exe 16->29         started        31 file.exe 16->31         started        process6 dnsIp7 61 api.2ip.ua 188.114.96.3, 443, 49700, 49701 CLOUDFLARENETUS European Union 18->61 43 C:\Users\user\AppData\Local\...\file.exe, PE32 18->43 dropped 33 file.exe 18->33         started        36 icacls.exe 18->36         started        45 C:\Users\user\Desktop\UNKRLCVOHV.png, data 22->45 dropped 47 C:\Users\user\Desktop\LFOPODGVOH.mp3, data 22->47 dropped 75 Modifies existing user documents (likely ransomware behavior) 22->75 file8 signatures9 process10 signatures11 65 Injects a PE file into a foreign processes 33->65 38 file.exe 1 22 33->38         started        process12 dnsIp13 63 cajgtus.com 181.52.122.51, 49702, 80 TelmexColombiaSACO Colombia 38->63 49 C:\_readme.txt, ASCII 38->49 dropped 51 C:\Users\user\_readme.txt, ASCII 38->51 dropped 53 10f5ef49-b826-4bae...85f.tmp.veza (copy), Google 38->53 dropped 55 96 other malicious files 38->55 dropped 77 Tries to harvest and steal browser information (history, passwords, etc) 38->77 79 Infects executable files (exe, dll, sys, html) 38->79 81 Modifies existing user documents (likely ransomware behavior) 38->81 file14 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e/
Threat name:
Win32.Trojan.Gedese
Create hunting rule
Status:
Malicious
First seen:
2024-05-28 14:19:08 UTC
File Type:
PE (Exe)
Extracted files:
76
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6npiebeaqa23kgs53sixl4b3v6dh2mq26jh7ioukzjtzp5tprxa._file
Verdict:
malicious
Similar samples:
175caaa055481f2e74fac2b6801b1e461194b8d662dcfec66ea0adcfd6d64bcc
Stop
4ff28482116fdfc17af3411d3f74e98c7cf78339a9c701b21e6bb04ffe407188
Stop
7dd575b4960d6489a8d2e254a11c281fb0a584cdb3ed4e247e77f03352e5c3e3
Stop
816f271c86ec8e2ef83647097e2fb040d580502e59dec71c1381e7ff24952cf5
Stop
8e353469e9a3238883c19d9471e6c9c9b6a487e25a7ba67ff0a94b89ebd2c610
Stop
968dd2b3636954d551acef1487e898e1d10231e55f43f62369fe76555def03bb
Stop
a92097460fb6fc1e6fe914c7bd3511d6035c79fe78ba76f991f4c14966cae17c
Stop
adf0b0f91fe741ac92131ff68352153b56c4f04212f4434ecf9fdb4447226216
Stop
b022e493931052692aa1caf59b29ab94236132fab4b0211a6aefb1c5bad6b22c
Stop
c7b100a41efd1967947eb511df59cc1ca3d05ec34c9dea2ca3a6865d69599d3c
Stop
+ 1'609 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/240528-rmt9nagf7s/
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/lancer/get.php
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/bd4afdee-e88d-43c5-9156-9e4ec805d8f2
Unpacked files
SH256 hash:
cb7bce46b30115bb2589bbf7dac5cb3cf76d9adff2571bd4b929e92f9a10918a
MD5 hash:
fdd10009f025c01d07c0b9da42fbf9b4
SHA1 hash:
fc686635a11fe6dc41f77c18e0f7ef0678dd25a8
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/f682a6d4-bae5-49a6-ba37-c5eab06ff2dc/
Parent samples :
2ce2c104c964166cf5fc95d7c855c173533bf28b7053a398bb01e757fd0d94ea
4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e
SH256 hash:
4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e
MD5 hash:
7265daee89e587ef7bfae3359391c6de
SHA1 hash:
918a6401d39ddcea8a9f34c37715deddf0e206ee
Link:
https://www.unpac.me/results/f682a6d4-bae5-49a6-ba37-c5eab06ff2dc/
Malware family:
Djvu
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f9af4102404/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/4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e

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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_URL_In_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Ransomware_Stop_1e8d48ff
Create hunting rule
Author:Elastic Security
Rule name:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.

File information

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

Web download

Stop

Executable exe 4f9af410240401ada8d2eee48baf81dd7c33e990d7927fa1d456533cbfb37c6e

(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::FindNextVolumeA
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AddConsoleAliasW
KERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleCursorInfo
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetSystemDirectoryA
KERNEL32.dll::SetVolumeMountPointA

Comments