MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49505420a8e71e6bd97c5ff658cb43239fd664eb750824cfed812ff1474b7b7d. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments

SHA256 hash: 49505420a8e71e6bd97c5ff658cb43239fd664eb750824cfed812ff1474b7b7d
SHA3-384 hash: cdc77e4227d55d08459898d75cd8cc2620856aec297ece3b150a7cd3b796ceb9d5fd11cfc897be03562e9fb238e781c0
SHA1 hash: 99a705989563c5b4511d2994d7340f7f3c3c72b8
MD5 hash: c479e029d48107168ffbf6cb881df926
humanhash: grey-zulu-friend-red
File name:setup.exe
Download: download sample
Signature Stop
File size:698'368 bytes
First seen:2023-03-17 02:17:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4b2faf5e2157c756cf2fd31d6cfd3d44 (4 x Stop, 4 x Smoke Loader, 4 x Rhadamanthys)
ssdeep 12288:C7j6YgKPckpaglCTbmjTmM+uKvCReA44vnt0ZJgBshfypCyMa9z:gDPcglAmjTm3CoF4vt0XqC4
Threatray 1'360 similar samples on MalwareBazaar
TLSH T1F0E4121253E23C64F9294A354E2EC1E8761EF8539E78AF772314DE1F08B15A1C8AF395
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 0892d042c042684a (1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
238
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
setup.exe
Verdict:
Malicious activity
Analysis date:
2023-03-17 02:21:04 UTC
Tags:
ransomware stop

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Sending an HTTP GET request
Creating a file
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
DNS request
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 lockbit mikey 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:
Clipboard Hijacker, Djvu, HTMLPhisher, V
Detection:
malicious
Classification:
rans.spre.phis.troj.spyw.evad
Score:
100 / 100
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 (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
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
Tries to steal Mail credentials (via file / registry access)
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 Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected HtmlPhish10
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 828352 Sample: setup.exe Startdate: 17/03/2023 Architecture: WINDOWS Score: 100 85 Snort IDS alert for network traffic 2->85 87 Multi AV Scanner detection for domain / URL 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 11 other signatures 2->91 12 setup.exe 2->12         started        15 mstsca.exe 2->15         started        17 setup.exe 2->17         started        process3 signatures4 107 Detected unpacking (changes PE section rights) 12->107 109 Detected unpacking (overwrites its own PE header) 12->109 111 Writes a notice file (html or txt) to demand a ransom 12->111 115 3 other signatures 12->115 19 setup.exe 1 17 12->19         started        113 Multi AV Scanner detection for dropped file 15->113 23 schtasks.exe 15->23         started        process5 dnsIp6 77 api.2ip.ua 162.0.217.254, 443, 49695, 49696 ACPCA Canada 19->77 65 C:\Users\user\...\setup.exe:Zone.Identifier, ASCII 19->65 dropped 67 C:\Users\user\AppData\Local\...\setup.exe, MS-DOS 19->67 dropped 25 setup.exe 19->25         started        28 icacls.exe 19->28         started        30 conhost.exe 23->30         started        file7 process8 signatures9 105 Injects a PE file into a foreign processes 25->105 32 setup.exe 1 25 25->32         started        process10 dnsIp11 71 uaery.top 86.122.83.142, 49697, 80 RCS-RDS73-75DrStaicoviciRO Romania 32->71 73 zexeq.com 80.210.25.252, 49698, 49699, 80 DCI-ASIR Iran (ISLAMIC Republic Of) 32->73 75 api.2ip.ua 32->75 57 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 32->57 dropped 59 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 32->59 dropped 61 C:\_readme.txt, ASCII 32->61 dropped 63 221 other malicious files 32->63 dropped 93 Infects executable files (exe, dll, sys, html) 32->93 95 Modifies existing user documents (likely ransomware behavior) 32->95 37 build2.exe 32->37         started        40 build3.exe 32->40         started        file12 signatures13 process14 file15 97 Detected unpacking (changes PE section rights) 37->97 99 Detected unpacking (creates a PE file in dynamic memory) 37->99 101 Detected unpacking (overwrites its own PE header) 37->101 43 build2.exe 20 37->43         started        69 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 40->69 dropped 103 Uses schtasks.exe or at.exe to add and modify task schedules 40->103 47 schtasks.exe 40->47         started        signatures16 process17 dnsIp18 79 t.me 149.154.167.99, 443, 49700 TELEGRAMRU United Kingdom 43->79 81 116.203.13.130, 49701, 80 HETZNER-ASDE Germany 43->81 83 192.168.2.1 unknown unknown 43->83 117 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 43->117 119 Tries to steal Mail credentials (via file / registry access) 43->119 121 Tries to harvest and steal browser information (history, passwords, etc) 43->121 123 Tries to steal Crypto Currency Wallets 43->123 49 cmd.exe 43->49         started        51 conhost.exe 47->51         started        signatures19 process20 process21 53 conhost.exe 49->53         started        55 timeout.exe 49->55         started       
Threat name:
Win32.Trojan.Vidar
Status:
Malicious
First seen:
2023-03-17 02:18:07 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar botnet:d6ef050131e7d5a1d595c51613328971 discovery persistence ransomware spyware stealer
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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://t.me/zaskullz
https://steamcommunity.com/profiles/76561199486572327
http://135.181.87.234:80
Unpacked files
SH256 hash:
7bcca2c3f836aff5dcc0f3a8d8ff7ad23f36a71dbcc06eb876d661f30962b50b
MD5 hash:
119457870fb4b90bd41e81499c64c1e6
SHA1 hash:
9f8d8523feacd04b3c438cc45d75829ffa86abe7
Detections:
win_stop_auto
SH256 hash:
49505420a8e71e6bd97c5ff658cb43239fd664eb750824cfed812ff1474b7b7d
MD5 hash:
c479e029d48107168ffbf6cb881df926
SHA1 hash:
99a705989563c5b4511d2994d7340f7f3c3c72b8
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:MALWARE_Win_STOP
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:pdb_YARAify
Author:@wowabiy314
Description:PDB
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 49505420a8e71e6bd97c5ff658cb43239fd664eb750824cfed812ff1474b7b7d

(this sample)

  
Delivery method
Distributed via web download

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