MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18a286151a945cf91548c05bc4b566eebbed37f71061fb0f4ad7e884d96edb40. 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 5 File information Comments

SHA256 hash: 18a286151a945cf91548c05bc4b566eebbed37f71061fb0f4ad7e884d96edb40
SHA3-384 hash: cc6b1d404f21afb7753aaa322e6644932b8113354893591aaa2ceecd13ac83a73098365e806852c58af1541ef80716ab
SHA1 hash: 6ddcec4464962e0877204561b00e13442013dba0
MD5 hash: a1cbc6ea635a45c6d06ac4791ade42bd
humanhash: alanine-enemy-beer-texas
File name:file.exe
Download: download sample
Signature Stop
File size:754'688 bytes
First seen:2023-06-16 00:52:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 99ae33530ebff97e88a1ac2c3129a9f7 (2 x RedLineStealer, 2 x Rhadamanthys, 2 x Stop)
ssdeep 12288:t7LUWXHNXEZr7L8etLp0OIVh4RPXSHuW4IuL75Snfsddbtmm+Y7bTC0l:tEuHNXEVLL+v4qH/un5Ypanf
Threatray 2'080 similar samples on MalwareBazaar
TLSH T1C9F40222FEF0BC72D071C7729D29C2A83B1DFD518E14679B172C6A1F1AB02A19972375
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 0040467048465400 (1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
326
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-06-16 00:55:05 UTC
Tags:
ransomware stop stealer vidar trojan loader

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
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
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed
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
Verdict:
Malicious
Result
Threat name:
Clipboard Hijacker, Djvu
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 888740 Sample: file.exe Startdate: 16/06/2023 Architecture: WINDOWS Score: 100 78 Found malware configuration 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Antivirus detection for URL or domain 2->82 84 6 other signatures 2->84 11 file.exe 2->11         started        14 file.exe 2->14         started        16 file.exe 2->16         started        18 2 other processes 2->18 process3 signatures4 90 Detected unpacking (changes PE section rights) 11->90 92 Detected unpacking (overwrites its own PE header) 11->92 94 Writes a notice file (html or txt) to demand a ransom 11->94 96 Writes many files with high entropy 11->96 20 file.exe 1 16 11->20         started        98 Multi AV Scanner detection for dropped file 14->98 100 Machine Learning detection for dropped file 14->100 102 Injects a PE file into a foreign processes 14->102 24 file.exe 12 14->24         started        26 file.exe 16->26         started        28 file.exe 18->28         started        30 schtasks.exe 18->30         started        process5 dnsIp6 66 api.2ip.ua 162.0.217.254, 443, 49719, 49720 ACPCA Canada 20->66 52 C:\Users\user\AppData\Local\...\file.exe, PE32 20->52 dropped 54 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 20->54 dropped 32 file.exe 20->32         started        35 icacls.exe 20->35         started        68 192.168.2.1 unknown unknown 26->68 37 conhost.exe 30->37         started        file7 process8 signatures9 76 Injects a PE file into a foreign processes 32->76 39 file.exe 1 25 32->39         started        process10 dnsIp11 70 zexeq.com 190.224.203.37, 49721, 49724, 80 TelecomArgentinaSAAR Argentina 39->70 72 colisumy.com 175.119.10.231, 49722, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 39->72 74 api.2ip.ua 39->74 56 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 39->56 dropped 58 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 39->58 dropped 60 C:\_readme.txt, ASCII 39->60 dropped 62 323 other malicious files 39->62 dropped 86 Infects executable files (exe, dll, sys, html) 39->86 88 Modifies existing user documents (likely ransomware behavior) 39->88 44 build3.exe 39->44         started        file12 signatures13 process14 file15 64 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 44->64 dropped 104 Uses schtasks.exe or at.exe to add and modify task schedules 44->104 48 schtasks.exe 44->48         started        signatures16 process17 process18 50 conhost.exe 48->50         started       
Threat name:
Win32.Trojan.SmokeLoader
Status:
Malicious
First seen:
2023-06-15 21:33:04 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar botnet:a129a8292a021d62796bfced1018aa1f 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 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/raud/get.php
https://steamcommunity.com/profiles/76561199514261168
https://t.me/kamaprimo
Unpacked files
SH256 hash:
9dba89876bea2e74c188b0d3444138a53b6a49888b9d126bad524429991f29f8
MD5 hash:
c2194b22bfd5c265f219fe9e8373db53
SHA1 hash:
0c0c25d29ca55309637bfc4d812e88a6f57106b9
Detections:
djvu_ransomware win_stop_auto
SH256 hash:
18a286151a945cf91548c05bc4b566eebbed37f71061fb0f4ad7e884d96edb40
MD5 hash:
a1cbc6ea635a45c6d06ac4791ade42bd
SHA1 hash:
6ddcec4464962e0877204561b00e13442013dba0
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: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 18a286151a945cf91548c05bc4b566eebbed37f71061fb0f4ad7e884d96edb40

(this sample)

  
Delivery method
Distributed via web download

Comments