MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53193f424f55572d6c57e1efc0d9afbce1fb8d2e09de0669bc230c34dccd330d. 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: 16


Intelligence 16 IOCs YARA 16 File information Comments

SHA256 hash: 53193f424f55572d6c57e1efc0d9afbce1fb8d2e09de0669bc230c34dccd330d
SHA3-384 hash: 350c0df0d75ee4d1bf26ec4956ed31b47fbec784f8fd14f44cae4322c8d119763160f043190db4bdf670298721fd05cf
SHA1 hash: fa1ddff9dfab4fd14ab4a6c5c10e2eb2922b2c5a
MD5 hash: 2449f33e98fdbe0a13506e5c62dc6a4a
humanhash: grey-enemy-alabama-mexico
File name:2449f33e98fdbe0a13506e5c62dc6a4a.exe
Download: download sample
Signature Stop
File size:836'096 bytes
First seen:2024-04-23 20:20:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0d1ba1b7736d2e87a8c9ef2f7961e417 (2 x Stop)
ssdeep 12288:Gp28EaKnR5+X0vHk4GcR4FKG/0m9uM2mSiDKF2JN7unBG8YzD5fx63G7E:GgTnR53H0BKQ/xRK8JRmGXpfxj7
TLSH T11B050243B6E17CA0E427D7324D3A8AA0522DFDF59E26577733485A1F48B42E1C6B3722
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 1022449291814800 (1 x Stop)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://cajgtus.com/test2/get.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
383
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
53193f424f55572d6c57e1efc0d9afbce1fb8d2e09de0669bc230c34dccd330d.exe
Verdict:
Malicious activity
Analysis date:
2024-04-24 05:14:09 UTC
Tags:
loader vodkagats djvu ransomware stop raccoonclipper

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
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
Verdict:
Malicious
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, Vidar
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted 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 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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected AntiVM3
Yara detected Babuk Ransomware
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1430575 Sample: JfOWsh7v0r.exe Startdate: 23/04/2024 Architecture: WINDOWS Score: 100 84 sdfjhuz.com 2->84 86 cajgtus.com 2->86 88 2 other IPs or domains 2->88 100 Found malware configuration 2->100 102 Malicious sample detected (through community Yara rule) 2->102 104 Antivirus detection for URL or domain 2->104 106 11 other signatures 2->106 13 JfOWsh7v0r.exe 2->13         started        16 mstsca.exe 2->16         started        18 JfOWsh7v0r.exe 2->18         started        20 5 other processes 2->20 signatures3 process4 signatures5 124 Detected unpacking (changes PE section rights) 13->124 126 Detected unpacking (overwrites its own PE header) 13->126 128 Writes a notice file (html or txt) to demand a ransom 13->128 134 2 other signatures 13->134 22 JfOWsh7v0r.exe 1 17 13->22         started        130 Multi AV Scanner detection for dropped file 16->130 132 Injects a PE file into a foreign processes 16->132 26 mstsca.exe 16->26         started        28 JfOWsh7v0r.exe 18->28         started        30 JfOWsh7v0r.exe 20->30         started        32 JfOWsh7v0r.exe 20->32         started        34 mstsca.exe 20->34         started        36 2 other processes 20->36 process6 dnsIp7 90 api.2ip.ua 172.67.139.220, 443, 49699, 49700 CLOUDFLARENETUS United States 22->90 68 C:\Users\user\AppData\...\JfOWsh7v0r.exe, PE32 22->68 dropped 38 JfOWsh7v0r.exe 22->38         started        41 icacls.exe 22->41         started        43 schtasks.exe 26->43         started        file8 process9 signatures10 118 Injects a PE file into a foreign processes 38->118 45 JfOWsh7v0r.exe 1 27 38->45         started        50 conhost.exe 43->50         started        process11 dnsIp12 96 sdfjhuz.com 189.232.19.193, 49704, 80 UninetSAdeCVMX Mexico 45->96 98 cajgtus.com 211.181.24.132, 49702, 49703, 49705 LGDACOMLGDACOMCorporationKR Korea Republic of 45->98 76 C:\Users\user\AppData\...\CacheStorage.jfm, COM 45->76 dropped 78 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 45->78 dropped 80 C:\_README.txt, ASCII 45->80 dropped 82 111 other malicious files 45->82 dropped 136 Tries to harvest and steal browser information (history, passwords, etc) 45->136 138 Infects executable files (exe, dll, sys, html) 45->138 140 Modifies existing user documents (likely ransomware behavior) 45->140 52 build2.exe 45->52         started        55 build3.exe 45->55         started        file13 signatures14 process15 signatures16 108 Detected unpacking (changes PE section rights) 52->108 110 Detected unpacking (overwrites its own PE header) 52->110 112 Writes many files with high entropy 52->112 57 build2.exe 52->57         started        114 Uses schtasks.exe or at.exe to add and modify task schedules 55->114 116 Injects a PE file into a foreign processes 55->116 62 build3.exe 55->62         started        process17 dnsIp18 92 95.217.9.149, 443, 49707, 49708 HETZNER-ASDE Germany 57->92 94 steamcommunity.com 23.76.43.59, 443, 49706 AMXArgentinaSAAR United States 57->94 70 C:\Users\user\...\76561199673019888[1].htm, data 57->70 dropped 72 C:\Users\user\AppData\Local\...\sqln[1].dll, PE32 57->72 dropped 120 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 57->120 122 Tries to harvest and steal browser information (history, passwords, etc) 57->122 74 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 62->74 dropped 64 schtasks.exe 62->64         started        file19 signatures20 process21 process22 66 conhost.exe 64->66         started       
Threat name:
Win32.Trojan.InstaBot
Status:
Malicious
First seen:
2024-04-23 20:21:05 UTC
File Type:
PE (Exe)
Extracted files:
60
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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/test2/get.php
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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:EXE_Stealer_StealC_Feb2024
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MALWARE_Win_STOP
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_XORed_URL_In_EXE
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
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Windows_Ransomware_Stop_1e8d48ff
Author:Elastic Security
Rule name:win_stop_auto
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 53193f424f55572d6c57e1efc0d9afbce1fb8d2e09de0669bc230c34dccd330d

(this sample)

  
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_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::LoadLibraryA
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AddConsoleAliasW
KERNEL32.dll::AddConsoleAliasA
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryW
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpOpen

Comments