MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec
SHA3-384 hash: 961bcabe9b77945f07c70620e2fe7fedab1fdf05db06cd993ab475bc59bbcb2f79b49eba7367eefbfbdc0db9bb371b27
SHA1 hash: c1a2bbb4e5e8b164d146480ead700a8497339511
MD5 hash: 8d1dceb6e1dc1e77d8efcd02499e7849
humanhash: sad-avocado-high-robin
File name:setup.exe
Download: download sample
Signature Stop
Create hunting rule
File size:871'424 bytes
First seen:2023-04-30 01:14:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8e1291b1baddb8fcca0899ad3cc587e8 (4 x Vidar, 4 x RedLineStealer, 2 x Stop)
ssdeep 12288:pOTaiFqR/S+nL+tkd9xitwZlwvKZQ6N7pP3R+Z+lKafCRCOyvF4R:pwaph3DZzZHN7lROMv2R
Threatray 683 similar samples on MalwareBazaar
TLSH T10705F113A2F13871E63246318E1ED6F8269EF9628F55BBDB1314DA2F0AB51F2C172711
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 01686e6a6a6a7a60 (1 x Vidar, 1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
306
Origin country :
US US
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
setup.exe
Verdict:
Malicious activity
Analysis date:
2023-04-30 01:15:46 UTC
Tags:
ransomware stop loader stealer vidar trojan
Link:
https://app.any.run/tasks/244defc5-f702-4586-8290-ebb32937f246

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/385704/
Detection(s):
SecuriteInfo.com.Win32.RansomX-gen.13738.9765.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
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
Searching for synchronization primitives
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/644dc117463eacbc57daf9a0/reports/51f3bff8-58cb-470e-9a31-48c3dc52ba7c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec
Result
Verdict:
UNKNOWN
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/a3d3a730-a6fe-4b8a-9886-22c64fa630f2
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1223587
Signature
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
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)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
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 Babuk Ransomware
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 856537 Sample: setup.exe Startdate: 30/04/2023 Architecture: WINDOWS Score: 100 89 Snort IDS alert for network traffic 2->89 91 Multi AV Scanner detection for domain / URL 2->91 93 Found malware configuration 2->93 95 13 other signatures 2->95 12 setup.exe 2->12         started        15 setup.exe 2->15         started        17 setup.exe 2->17         started        19 4 other processes 2->19 process3 signatures4 113 Detected unpacking (changes PE section rights) 12->113 115 Detected unpacking (overwrites its own PE header) 12->115 117 Writes a notice file (html or txt) to demand a ransom 12->117 123 2 other signatures 12->123 21 setup.exe 1 18 12->21         started        119 Injects a PE file into a foreign processes 17->119 25 setup.exe 17->25         started        121 Multi AV Scanner detection for dropped file 19->121 27 setup.exe 19->27         started        29 schtasks.exe 19->29         started        process5 dnsIp6 81 api.2ip.ua 162.0.217.254, 443, 49697, 49700 ACPCA Canada 21->81 63 C:\Users\user\...\setup.exe:Zone.Identifier, ASCII 21->63 dropped 65 C:\Users\user\AppData\Local\...\setup.exe, MS-DOS 21->65 dropped 31 setup.exe 21->31         started        34 icacls.exe 21->34         started        36 conhost.exe 29->36         started        file7 process8 signatures9 125 Injects a PE file into a foreign processes 31->125 38 setup.exe 1 25 31->38         started        process10 dnsIp11 83 zexeq.com 190.219.89.165, 49701, 49702, 49703 CableOndaPA Panama 38->83 85 colisumy.com 38->85 87 api.2ip.ua 38->87 67 StartUnifiedTileMo...che.dat.fofd (copy), DOS 38->67 dropped 69 C:\Users\...\StartUnifiedTileModelCache.dat, DOS 38->69 dropped 71 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 38->71 dropped 73 133 other malicious files 38->73 dropped 103 Infects executable files (exe, dll, sys, html) 38->103 105 Modifies existing user documents (likely ransomware behavior) 38->105 43 build2.exe 38->43         started        46 build3.exe 1 38->46         started        file12 signatures13 process14 file15 107 Detected unpacking (changes PE section rights) 43->107 109 Detected unpacking (overwrites its own PE header) 43->109 49 build2.exe 43->49         started        75 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 46->75 dropped 111 Uses schtasks.exe or at.exe to add and modify task schedules 46->111 53 schtasks.exe 1 46->53         started        signatures16 process17 dnsIp18 77 t.me 149.154.167.99, 443, 49706 TELEGRAMRU United Kingdom 49->77 79 168.119.169.139, 131, 49707 HETZNER-ASDE Germany 49->79 97 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 49->97 99 Tries to harvest and steal browser information (history, passwords, etc) 49->99 101 Tries to steal Crypto Currency Wallets 49->101 55 cmd.exe 49->55         started        57 conhost.exe 53->57         started        signatures19 process20 process21 59 conhost.exe 55->59         started        61 timeout.exe 55->61         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec/
Threat name:
Win32.Trojan.SmokeLoader
Create hunting rule
Status:
Malicious
First seen:
2023-04-29 23:12:31 UTC
File Type:
PE (Exe)
Extracted files:
41
AV detection:
27 of 37 (72.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yzc2smbiqll5sf6zj3shu5jzlutw4zuat5wqydfppq75rkgpatwa._file
Verdict:
malicious
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+ 673 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:5cb879265de0011bfc7588d5d251aee6 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230430-bl8snacg89/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://zexeq.com/test1/get.php
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
Unpacked files
SH256 hash:
62627f497a494d12d21d0a3c729b6f0f4c08d180f37f21c9f728ed9e428af1f7
MD5 hash:
a88a7bed51fe0f46da22022a48808d16
SHA1 hash:
dc182a6b6efbdb99ad904d865efc4a32e46e58f9
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/3adb8930-9c06-4b8f-b290-42b12bedc401/
Parent samples :
c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec
25412c76e0f7373a4032bd333263131bde088d4cd6615409fb68a790e905c2f4
SH256 hash:
c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec
MD5 hash:
8d1dceb6e1dc1e77d8efcd02499e7849
SHA1 hash:
c1a2bbb4e5e8b164d146480ead700a8497339511
Link:
https://www.unpac.me/results/3adb8930-9c06-4b8f-b290-42b12bedc401/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c645a9302882/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/c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec

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:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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: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 c645a9302882d7d917d94ee47a75395d276e66809f6d0c0caf7c3fd8a8cf04ec

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/385704/

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