MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a99ea2bab62c1b16ac6d03a8b5117840443e3b0c0c77bf45e78b3e317cbfdacd. 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: 15


Intelligence 15 IOCs 2 YARA 6 File information Comments

SHA256 hash: a99ea2bab62c1b16ac6d03a8b5117840443e3b0c0c77bf45e78b3e317cbfdacd
SHA3-384 hash: 074a09e6ef3f4b720a3d05bb61d126546c3b1247657ef5b304e695c19fd265055aaa9c77505d508f7bffe88635ce545c
SHA1 hash: 7af701ead8fd81456ba3b4f42aa3853408219e3d
MD5 hash: e3518d70cb73b292baaf3cda9aeb7f7a
humanhash: red-winner-social-quiet
File name:e3518d70cb73b292baaf3cda9aeb7f7a.exe
Download: download sample
Signature Stop
File size:765'440 bytes
First seen:2022-10-19 23:20:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e2dab4a32c1d51b6f0939b8d93cc8583 (2 x TeamBot, 2 x Smoke Loader, 1 x Stop)
ssdeep 12288:1vknNBa2VkAglkLz/Jq38dZhvBsk11r2Wize3b9L8JTABoWlMyg4Yh+:1yDVkUfg3sv1DKtzeLeJTABoWWyjI
Threatray 2'932 similar samples on MalwareBazaar
TLSH T1FAF4122136D0E433D26750704E50EBB82BBBB8745AB99ADB37C4175D6F322E2ED25306
TrID 39.4% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
29.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 9a9acadecee6eaee (98 x Smoke Loader, 33 x RedLineStealer, 24 x ArkeiStealer)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://78.46.160.87/

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://78.46.160.87/ https://threatfox.abuse.ch/ioc/292277/
http://tm.baiaveloz.com/ https://threatfox.abuse.ch/ioc/895046/

Intelligence


File Origin
# of uploads :
1
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
e3518d70cb73b292baaf3cda9aeb7f7a.exe
Verdict:
Malicious activity
Analysis date:
2022-10-19 23:21:41 UTC
Tags:
trojan ransomware stop

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
Сreating synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
emotet greyware mokes 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.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
Found ransom note / readme
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
Snort IDS alert for network traffic
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 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:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 726447 Sample: MQurG7VFhm.exe Startdate: 20/10/2022 Architecture: WINDOWS Score: 100 106 Snort IDS alert for network traffic 2->106 108 Malicious sample detected (through community Yara rule) 2->108 110 Antivirus detection for URL or domain 2->110 112 9 other signatures 2->112 12 MQurG7VFhm.exe 2->12         started        15 MQurG7VFhm.exe 2->15         started        17 MQurG7VFhm.exe 2->17         started        19 mstsca.exe 2->19         started        process3 signatures4 124 Writes a notice file (html or txt) to demand a ransom 12->124 126 Contains functionality to inject code into remote processes 12->126 128 Writes many files with high entropy 12->128 21 MQurG7VFhm.exe 1 16 12->21         started        130 Injects a PE file into a foreign processes 15->130 25 MQurG7VFhm.exe 15->25         started        28 MQurG7VFhm.exe 12 15->28         started        30 MQurG7VFhm.exe 17->30         started        132 Multi AV Scanner detection for dropped file 19->132 32 schtasks.exe 19->32         started        process5 dnsIp6 86 api.2ip.ua 162.0.217.254, 443, 49706, 49707 ACPCA Canada 21->86 72 C:\Users\...\MQurG7VFhm.exe:Zone.Identifier, ASCII 21->72 dropped 74 C:\Users\user\AppData\...\MQurG7VFhm.exe, MS-DOS 21->74 dropped 34 MQurG7VFhm.exe 21->34         started        37 icacls.exe 21->37         started        116 Injects a PE file into a foreign processes 25->116 39 MQurG7VFhm.exe 25->39         started        42 conhost.exe 32->42         started        file7 signatures8 process9 dnsIp10 114 Injects a PE file into a foreign processes 34->114 44 MQurG7VFhm.exe 1 25 34->44         started        88 api.2ip.ua 39->88 signatures11 process12 dnsIp13 96 rgyui.top 138.36.3.134, 49708, 80 TEXNETSERVICOSDECOMUNICACAOEMINFORMATICALTDBR Brazil 44->96 98 winnlinne.com 210.182.29.70, 49709, 49714, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 44->98 100 api.2ip.ua 44->100 78 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 44->78 dropped 80 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 44->80 dropped 82 C:\_readme.txt, ASCII 44->82 dropped 84 137 other malicious files 44->84 dropped 134 Modifies existing user documents (likely ransomware behavior) 44->134 49 build2.exe 44->49         started        52 build3.exe 44->52         started        file14 signatures15 process16 file17 102 Injects a PE file into a foreign processes 49->102 55 build2.exe 49->55         started        70 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 52->70 dropped 104 Uses schtasks.exe or at.exe to add and modify task schedules 52->104 60 schtasks.exe 52->60         started        signatures18 process19 dnsIp20 90 t.me 149.154.167.99, 443, 49715 TELEGRAMRU United Kingdom 55->90 92 78.46.160.87, 49716, 80 HETZNER-ASDE Germany 55->92 94 tm.baiaveloz.com 207.180.253.128, 49720, 80 CONTABODE Germany 55->94 76 C:\ProgramData\sqlite3.dll, PE32 55->76 dropped 118 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 55->118 120 Tries to harvest and steal browser information (history, passwords, etc) 55->120 122 Tries to steal Crypto Currency Wallets 55->122 62 cmd.exe 55->62         started        64 conhost.exe 60->64         started        file21 signatures22 process23 process24 66 conhost.exe 62->66         started        68 timeout.exe 62->68         started       
Threat name:
Win32.Trojan.Raccoon
Status:
Malicious
First seen:
2022-10-20 00:55:30 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
30 of 42 (71.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar botnet:517 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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Detected Djvu ransomware
Djvu Ransomware
Vidar
Malware Config
C2 Extraction:
http://winnlinne.com/test1/get.php
https://t.me/tg_privatetalk
https://nerdculture.de/@yixehi33
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
a99ea2bab62c1b16ac6d03a8b5117840443e3b0c0c77bf45e78b3e317cbfdacd
MD5 hash:
e3518d70cb73b292baaf3cda9aeb7f7a
SHA1 hash:
7af701ead8fd81456ba3b4f42aa3853408219e3d
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
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:Vidar
Author:kevoreilly,rony
Description:Vidar Payload
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 a99ea2bab62c1b16ac6d03a8b5117840443e3b0c0c77bf45e78b3e317cbfdacd

(this sample)

  
Delivery method
Distributed via web download

Comments