MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a
SHA3-384 hash: 29aeec39b2c8abdfafb59d34dc434379205e92ff6fb67988e8553d2bc4f0d4b474e97119f545c0c358a655fe7cc95969
SHA1 hash: 24651727469af70e07019e9519bdd92c63a8755f
MD5 hash: c2e7878ad4e96dbd12b29df99e700479
humanhash: whiskey-batman-arizona-october
File name:file.exe
Download: download sample
Signature Stop
Create hunting rule
File size:729'088 bytes
First seen:2023-05-31 02:01:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 27113c217d53f26eb8f070c56bd3d296 (2 x GCleaner, 2 x Stop, 1 x ArkeiStealer)
ssdeep 12288:7O9+40Eqqh1QsJuPCG7ldiLCE7D4mJIjl+HGGp7vzDHeWaiOtBeL3s8hp1VS:yPMiuqGJdi+wDikmGp7vHeWeebs8hU
Threatray 1'910 similar samples on MalwareBazaar
TLSH T1A2F4123172E1F172D7AB58751C32CB68AE7BB9375B2646CB2F14272E1E701D086B2712
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 408c0890a0948400 (1 x Stop)
Reporter Chainskilabs
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
US US
Vendor Threat Intelligence
Malware family:
stop
Create hunting rule
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-05-31 02:04:52 UTC
Tags:
ransomware stop loader stealer vidar trojan arkei
Link:
https://app.any.run/tasks/4dde7ada-261f-4efa-ae10-d9e1c582140c

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/393781/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
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
Sending a custom TCP request
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:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/88748/overview
Behaviour
MalwareBazaar
SystemUptime
CPUID_Instruction
MeasuringTime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/6476aa995460e6232fe1f0f8/reports/3836da60-b321-4a02-bec1-39e836b9c273/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a
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/5fe945f7-3117-4d28-8ac2-ff1ff9976942
Result
Threat name:
Babuk, Clipboard Hijacker, Djvu, HTMLPhi
Create hunting rule
Detection:
malicious
Classification:
rans.spre.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1245713
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 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
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 HtmlPhish10
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 878723 Sample: file.exe Startdate: 31/05/2023 Architecture: WINDOWS Score: 100 78 Snort IDS alert for network traffic 2->78 80 Multi AV Scanner detection for domain / URL 2->80 82 Found malware configuration 2->82 84 11 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 17 11->20         started        98 Multi AV Scanner detection for dropped file 14->98 100 Injects a PE file into a foreign processes 14->100 24 file.exe 13 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, 49692, 49693 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 187.147.166.168, 49695, 49697, 80 UninetSAdeCVMX Mexico 39->70 72 colisumy.com 190.229.19.7, 49694, 80 TelecomArgentinaSAAR Argentina 39->72 74 api.2ip.ua 39->74 56 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 39->56 dropped 58 C:\_readme.txt, ASCII 39->58 dropped 60 C:\Users\user\_readme.txt, ASCII 39->60 dropped 62 217 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 102 Uses schtasks.exe or at.exe to add and modify task schedules 44->102 48 schtasks.exe 44->48         started        signatures16 process17 process18 50 conhost.exe 48->50         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a/
Threat name:
Win32.Trojan.Smokeloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-31 01:01:09 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h33nocuy5rm4w6xzmeb52vsjgg4pqeowpkvz5qfazsxe6sojsy5a._file
Verdict:
malicious
Similar samples:
2831300675369e6ac5d928446186f83bedc4027fe6db617039e5b224258ed0b6
Stop
35ba91ddf0d41590d0de137bc1d6e5524d8a84ecfabdae793e6b3a499f2c67d4
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+ 1'900 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:77a63e71a10ee1d81a28b5c866b75922 discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/230531-cf4r7ach3s/
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
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/76561199510444991
https://t.me/task4manager
Unpacked files
SH256 hash:
c1b165c6e9c54f40abd6da0bdf39854cbd184f9d9c1187690e70d06034fa4991
MD5 hash:
087ca2c96731f80900151291665f1ca6
SHA1 hash:
c96c3f4f1ac6c7acb3c5be9a082e8e01fc45fc68
Detections:
stop_ransomware
Create hunting rule
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/3ac03133-40b7-414c-ac9c-911a9c3bd3db/
Parent samples :
47e03ff21b669855f25429024005931007716250473e4a0c250e1dfbb5b4f81a
b98bffd15bd252c97184a9692eb3f4f4ed3f43a4fce3359e842f44f1e0bff8ad
7dc3815a0db7fc813d9927f7a938cdb506d9c828505714d4a2dd2ab4686a50f9
83513ead85629fb300aba6a80e3a110031b7c8c51ff13029459e720169c20b09
3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a
0dea9d29d4aedc99d8becf261b8ebae1238d7131f9751a9e8874af4bf2b76f2f
5842be42ecc0c04cee42051aad42fad0e5b339e7295da2ee6a1bf84ebd48332b
dc63baabd84deecd8eea558f7998ad10e22551ec39103bf02d4ae040c6c5d30f
56f05fbef05fca4cb517f793263ac86f2dd3c3c02184e8f2f1dd43f8525a2aef
9d0634dc38a32cba819a2a43577856060aec5d25045f87191766923003f12062
3180b3aae1cc1859bdcf18260587a57fddaa70e34192e95b744430f26a5e2989
SH256 hash:
3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a
MD5 hash:
c2e7878ad4e96dbd12b29df99e700479
SHA1 hash:
24651727469af70e07019e9519bdd92c63a8755f
Link:
https://www.unpac.me/results/3ac03133-40b7-414c-ac9c-911a9c3bd3db/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3ef6d70a98ec/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/3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a

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:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
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:Telegram_Links
Create hunting rule
Rule name:Vidar
Create hunting rule
Author:kevoreilly,rony
Description:Vidar Payload
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 3ef6d70a98ec59cb7af96103dd564931b8f811d67aab9ec0a0ccae4f49c9963a

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/393781/

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