MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8997f96b91ab5ea1fed555a7d62369a8307b0cfcbd0e32c5e9a7e430ab42240. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments

SHA256 hash: e8997f96b91ab5ea1fed555a7d62369a8307b0cfcbd0e32c5e9a7e430ab42240
SHA3-384 hash: 728ff618ab2c7a44bda34b90dc15ea09c6b8cfd0aedb1f3f7079f3277605bc0a563afa5535aa5e21b1b94cd15f58efce
SHA1 hash: 88dc47b65b432e06a0056a070f08ab191b3c8990
MD5 hash: 79763fbb5ac3ef82b51193d28c32b6a6
humanhash: indigo-foxtrot-dakota-charlie
File name:79763fbb5ac3ef82b51193d28c32b6a6.exe
Download: download sample
Signature Stop
File size:758'272 bytes
First seen:2022-12-25 10:25:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7b9daca6da068f54ad4e1900288e8efd (6 x Smoke Loader, 4 x RedLineStealer, 2 x Amadey)
ssdeep 12288:HGoKGtRu7wbo13n6MHLem8LgaLhrZCGM5q6DJjbwhOYgBHVKm:UGCVn6NmkgaLVYTq1OPB1v
Threatray 2'716 similar samples on MalwareBazaar
TLSH T10CF412217A50CC35D6D62AB1982BD7F8273BECA48B1355F339083A1F3D745F09A26386
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 9a9acedecee6eae6 (99 x Smoke Loader, 31 x RedLineStealer, 28 x Tofsee)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://ex3mall.com/test1/get.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
79763fbb5ac3ef82b51193d28c32b6a6.exe
Verdict:
Malicious activity
Analysis date:
2022-12-25 10:26:11 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
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
DNS request
Sending a custom TCP request
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:
anti-vm azorult 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:
Babuk, 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
Found ransom note / readme
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 domain / URL
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
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Yara detected Djvu Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 773498 Sample: amf9VszY3r.exe Startdate: 25/12/2022 Architecture: WINDOWS Score: 100 84 Snort IDS alert for network traffic 2->84 86 Multi AV Scanner detection for domain / URL 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 9 other signatures 2->90 12 amf9VszY3r.exe 2->12         started        15 amf9VszY3r.exe 2->15         started        17 amf9VszY3r.exe 2->17         started        19 amf9VszY3r.exe 2->19         started        process3 signatures4 96 Writes a notice file (html or txt) to demand a ransom 12->96 98 Writes many files with high entropy 12->98 100 Injects a PE file into a foreign processes 12->100 21 amf9VszY3r.exe 1 16 12->21         started        102 Multi AV Scanner detection for dropped file 15->102 104 Machine Learning detection for dropped file 15->104 25 amf9VszY3r.exe 15->25         started        27 amf9VszY3r.exe 17->27         started        29 amf9VszY3r.exe 19->29         started        process5 dnsIp6 72 api.2ip.ua 162.0.217.254, 443, 49696, 49699 ACPCA Canada 21->72 74 192.168.2.1 unknown unknown 21->74 62 C:\Users\user\AppData\...\amf9VszY3r.exe, PE32 21->62 dropped 64 C:\Users\...\amf9VszY3r.exe:Zone.Identifier, ASCII 21->64 dropped 31 amf9VszY3r.exe 21->31         started        34 icacls.exe 21->34         started        76 ex3mall.com 25->76 78 178.31.8.68, 49711, 80 TELENOR-NEXTELTelenorNorgeASNO Sweden 25->78 file7 process8 signatures9 112 Injects a PE file into a foreign processes 31->112 36 amf9VszY3r.exe 1 21 31->36         started        process10 dnsIp11 66 uaery.top 109.98.58.98, 49701, 80 RTDBucharestRomaniaRO Romania 36->66 68 ex3mall.com 190.219.54.242, 49700, 49702, 49703 CableOndaPA Panama 36->68 70 api.2ip.ua 36->70 54 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 36->54 dropped 56 C:\_readme.txt, ASCII 36->56 dropped 58 C:\Users\user\_readme.txt, ASCII 36->58 dropped 60 147 other malicious files 36->60 dropped 92 Modifies existing user documents (likely ransomware behavior) 36->92 41 build2.exe 36->41         started        file12 signatures13 process14 signatures15 94 Injects a PE file into a foreign processes 41->94 44 build2.exe 19 41->44         started        process16 dnsIp17 80 t.me 149.154.167.99, 443, 49706 TELEGRAMRU United Kingdom 44->80 82 78.46.254.202, 49707, 80 HETZNER-ASDE Germany 44->82 106 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 44->106 108 Tries to harvest and steal browser information (history, passwords, etc) 44->108 110 Tries to steal Crypto Currency Wallets 44->110 48 cmd.exe 44->48         started        signatures18 process19 process20 50 conhost.exe 48->50         started        52 timeout.exe 48->52         started       
Threat name:
Win32.Dropper.Generic
Status:
Suspicious
First seen:
2022-12-25 10:26:09 UTC
File Type:
PE (Exe)
Extracted files:
57
AV detection:
16 of 39 (41.03%)
Threat level:
  3/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu 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
Malware Config
C2 Extraction:
http://ex3mall.com/test1/get.php
Unpacked files
SH256 hash:
e8997f96b91ab5ea1fed555a7d62369a8307b0cfcbd0e32c5e9a7e430ab42240
MD5 hash:
79763fbb5ac3ef82b51193d28c32b6a6
SHA1 hash:
88dc47b65b432e06a0056a070f08ab191b3c8990
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: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 e8997f96b91ab5ea1fed555a7d62369a8307b0cfcbd0e32c5e9a7e430ab42240

(this sample)

  
Delivery method
Distributed via web download

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