MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5. 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: 13


Intelligence 13 IOCs 1 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5
SHA3-384 hash: 9f20661bb13b64d31d5256518d19dc5e47eb108d7b36ea278add46c3d969f62d4279844b094ed446370ac809cc83f336
SHA1 hash: f45de1fc53a75789789225659cea0e4f8a4da7bb
MD5 hash: 698cae7702faafc5fe21e6e76af0762e
humanhash: hot-crazy-one-high
File name:23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5
Download: download sample
Signature Stop
Create hunting rule
File size:834'560 bytes
First seen:2021-09-30 11:25:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 80a508c8657a344b6b8e2e6999ecb92a (3 x RaccoonStealer, 3 x ArkeiStealer, 2 x Stop)
ssdeep 12288:dPJYZ2qAZbrAlYOFV7RpoO/SVhSnTkhJoc3POR17JmvXiAXDCG3I1AG+:dgMbrAlJRptGsnIjPa1s6ATCWI1F
Threatray 737 similar samples on MalwareBazaar
TLSH T1CF0512C0A581C5B3C721857E4C8682BDC2DDBC5CEBE4A6732B9426EE6E39153BD17213
File icon (PE):PE icon
dhash icon 4839b234e8c38890 (121 x RaccoonStealer, 54 x RedLineStealer, 51 x ArkeiStealer)
Reporter JAMESWT_WT
Tags:exe Stop

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://23.88.108.1/ https://threatfox.abuse.ch/ioc/228179/

Intelligence

File Origin
# of uploads :
1
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5
Verdict:
Suspicious activity
Analysis date:
2021-09-30 11:30:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/eb8d68f9-7cd2-4c19-ba14-b8bd68c56480

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/193506/
Detection(s):
Win.Packed.Filerepmetagen-9897698-0
Create hunting rule

Win.Packed.Generic-9898156-0
Create hunting rule

Win.Packed.Generic-9898162-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Malware family:
STOP Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6131e897-d51d-4fdf-b32b-1987c69477ba
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/862245
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found 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
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
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 494678 Sample: tgq9mX1f1t Startdate: 30/09/2021 Architecture: WINDOWS Score: 100 54 Multi AV Scanner detection for domain / URL 2->54 56 Found malware configuration 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 4 other signatures 2->60 8 tgq9mX1f1t.exe 2->8         started        11 tgq9mX1f1t.exe 2->11         started        13 tgq9mX1f1t.exe 2->13         started        15 tgq9mX1f1t.exe 2->15         started        process3 signatures4 64 Injects a PE file into a foreign processes 8->64 17 tgq9mX1f1t.exe 1 18 8->17         started        66 Multi AV Scanner detection for dropped file 11->66 68 Detected unpacking (changes PE section rights) 11->68 70 Detected unpacking (overwrites its own PE header) 11->70 72 2 other signatures 11->72 22 tgq9mX1f1t.exe 12 11->22         started        24 tgq9mX1f1t.exe 1 16 13->24         started        26 tgq9mX1f1t.exe 15->26         started        process5 dnsIp6 48 securebiz.org 61.98.7.133, 49751, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 17->48 36 C:\Users\user\...\tgq9mX1f1t.exe.rigd (copy), data 17->36 dropped 38 C:\Users\user\Desktop\tgq9mX1f1t.exe, data 17->38 dropped 40 C:\Users\user\Desktop\...\PIVFAGEAAV.pdf, data 17->40 dropped 46 5 other files (3 malicious) 17->46 dropped 62 Modifies existing user documents (likely ransomware behavior) 17->62 50 api.2ip.ua 77.123.139.190, 443, 49745, 49746 VOLIA-ASUA Ukraine 24->50 42 C:\Users\user\AppData\...\tgq9mX1f1t.exe, PE32 24->42 dropped 44 C:\Users\...\tgq9mX1f1t.exe:Zone.Identifier, ASCII 24->44 dropped 28 tgq9mX1f1t.exe 24->28         started        31 icacls.exe 24->31         started        file7 signatures8 process9 signatures10 74 Injects a PE file into a foreign processes 28->74 33 tgq9mX1f1t.exe 12 28->33         started        process11 dnsIp12 52 api.2ip.ua 33->52
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-09-29 19:28:51 UTC
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=epxt5xz7yo6teluldjaztqfyglejwxznt6ylegawqeilvurmnp2q._file
Verdict:
malicious
Similar samples:
037e3a20ff7b6e369c768c95e9ea976b1e2fe80a5d4625c569a3bb98aa467a35
Stop
0a644c28fba57280abf3226ace12e8aa12f284f78485423b7c358ed29f515167
Stop
26967c1b5ff6848501ddf70985408b7736835286f788f663e086f34aecd6bfb1
Stop
35be1a97d304ab4b045cb2e608c22dd2c7efb4df1e86cdd4e0b780bdf1c21838
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47d6022eaad843e702e839fd027870f7089bd19ba6548e36bf5e82b5c70a2f23
Stop
804b9c87f98a32101b51f26c221e589bc80350b69c163abfab2de64f7e9b3e72
Stop
99ee06f5fb4f0aa90678d6a6405d2d01138bcd128c6d2aabecda07c110361ba2
Stop
c3ade1984ff9031d528776a359b03e496cecb26c332bd826465eef2da60f41b1
Stop
da7263588f95278e91f5ddb2898d18735d6c6abfa1e872d1358aafa4e044adca
Stop
e5a536df45ce59beb16c30352f72f0d84af2f478b3fb1e090ff53741f946dfdc
Stop
+ 727 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar discovery persistence ransomware spyware stealer suricata
Link:
https://tria.ge/reports/210930-njvjgahefm/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Delays execution with timeout.exe
Kills process with taskkill
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
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Vidar Stealer
Detected Djvu ransomware
Djvu Ransomware
Vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
Unpacked files
SH256 hash:
6e4e83491223920a8bd8b0689f63ad2fda8d2c5fe9b1bd038769e39fcdd9b82c
MD5 hash:
560682b97921987fdf11278fd6ba7a6f
SHA1 hash:
6635d97ed6fcbe778a48d426f3b42341fe6a97c9
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/3b1e22c8-cb78-4233-bd6f-a230d338d28c/
Parent samples :
d4a30f137e41ba8ea5fffa89ae9fc3b01364e4f880584946d0067c4b8532a384
23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5
ab9a2ac16788b95a8f0bd270cac235e4aaba83a1772396bc97fff0925e7c704c
2cdac05088d51a5ebb646fbba3c305ec14c950dc1ce3b3d51da5aa6584774429
30089a78356dd0f6801c73349dbcbdde0e5e8b6baed69a926066ddac97d9eea4
3d1185aaeb41f59249b8ceae636ec448697236455dacfb07fb8a3460ee17dab7
2cca6cadf1f67790d0234a75ec54a6670f0503e0283b223ca04a4b9e70e97576
5f577398b47d02dbb683a2ee2a32ffc49326f3874971791646fefdb02d6796f1
f7561de520f21434830d40d74904e93125b76407d477411622bbd829283ba8c4
SH256 hash:
23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5
MD5 hash:
698cae7702faafc5fe21e6e76af0762e
SHA1 hash:
f45de1fc53a75789789225659cea0e4f8a4da7bb
Link:
https://www.unpac.me/results/3b1e22c8-cb78-4233-bd6f-a230d338d28c/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/23ef3edf3fc3/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/23ef3edf3fc3bd322e8b1a4199c0b832c89b5f2d9fb0b218168110bad22c6bf5

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:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Create hunting rule
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_STOP
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MALWARE_Win_Vidar
Create hunting rule
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
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.

Cape
Cape
https://www.capesandbox.com/analysis/193506/

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