MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b. 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 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b
SHA3-384 hash: 62f6ad6692f05770236a457413e49347f680ef0bce2b4e106a6b05f33a023513ceac4aa267e3bceb4b98ae75959bf94b
SHA1 hash: 729557420c331200cbad77b7f98a0f5841933a63
MD5 hash: c81d1895f7472cec079c7f12419feaf0
humanhash: bluebird-magnesium-network-ack
File name:c81d1895f7472cec079c7f12419feaf0.exe
Download: download sample
Signature Stop
Create hunting rule
File size:840'192 bytes
First seen:2021-10-19 14:28:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 225e0ad40cbe89f68a30c3a6a7705729 (2 x RaccoonStealer, 1 x Stop, 1 x CryptBot)
ssdeep 24576:z29OoiMqc8ivTbTYuWUoVH8ZsFIL0vnSh8koeUFi:a9BwDuWUq4sF40PJ2
Threatray 794 similar samples on MalwareBazaar
TLSH T10905021067A1C034F5B612F49A7997B8B53F3EA09B6490CF92E512FA5B356E1EC3034B
File icon (PE):PE icon
dhash icon ead8ac9cc6e68ee0 (118 x RaccoonStealer, 102 x RedLineStealer, 46 x Smoke Loader)
Reporter abuse_ch
Tags:exe Ransomware Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/198580/
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/616ed631db358dd15ec4e1ca/reports/0eb9a9b5-b73e-4363-a611-a4afc59b6a88/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2063dcd8-88df-404f-ae30-80c38cdbda0a
Result
Threat name:
Clipboard Hijacker Djvu Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/873206
Signature
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found many strings related to Crypto-Wallets (likely being stolen)
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
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 505634 Sample: O7NsNjLgjf.exe Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 110 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->110 112 Multi AV Scanner detection for domain / URL 2->112 114 Multi AV Scanner detection for submitted file 2->114 116 8 other signatures 2->116 12 O7NsNjLgjf.exe 2->12         started        15 O7NsNjLgjf.exe 2->15         started        17 mstsca.exe 2->17         started        19 3 other processes 2->19 process3 signatures4 138 Detected unpacking (changes PE section rights) 12->138 140 Detected unpacking (overwrites its own PE header) 12->140 142 Contains functionality to inject code into remote processes 12->142 144 Writes many files with high entropy 12->144 21 O7NsNjLgjf.exe 1 16 12->21         started        146 Injects a PE file into a foreign processes 15->146 25 O7NsNjLgjf.exe 12 15->25         started        28 mstsca.exe 17->28         started        30 O7NsNjLgjf.exe 19->30         started        32 O7NsNjLgjf.exe 19->32         started        34 mstsca.exe 19->34         started        process5 dnsIp6 96 api.2ip.ua 77.123.139.190, 443, 49751, 49753 VOLIA-ASUA Ukraine 21->96 74 C:\Users\...\O7NsNjLgjf.exe:Zone.Identifier, ASCII 21->74 dropped 36 O7NsNjLgjf.exe 21->36         started        39 icacls.exe 21->39         started        76 C:\Users\user\Desktop76WCXBPIUYI.mp3, data 25->76 dropped 130 Modifies existing user documents (likely ransomware behavior) 25->130 41 schtasks.exe 28->41         started        98 192.168.2.1 unknown unknown 32->98 file7 signatures8 process9 signatures10 128 Injects a PE file into a foreign processes 36->128 43 O7NsNjLgjf.exe 1 24 36->43         started        48 conhost.exe 41->48         started        process11 dnsIp12 104 znpst.top 188.172.93.164, 49755, 80 VFM-ASVodafoneMaltaLtdASMT Malta 43->104 106 rlrz.org 211.59.14.90, 49754, 49757, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 43->106 108 api.2ip.ua 43->108 88 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 43->88 dropped 90 C:\Users\user\AppData\Local\...\build2.exe, PE32 43->90 dropped 92 C:\Users\user\_readme.txt, ASCII 43->92 dropped 94 42 other files (40 malicious) 43->94 dropped 148 Infects executable files (exe, dll, sys, html) 43->148 150 Modifies existing user documents (likely ransomware behavior) 43->150 50 build2.exe 43->50         started        53 build3.exe 43->53         started        file13 signatures14 process15 signatures16 118 Detected unpacking (changes PE section rights) 50->118 120 Detected unpacking (overwrites its own PE header) 50->120 122 Machine Learning detection for dropped file 50->122 126 2 other signatures 50->126 55 build2.exe 50->55         started        124 Uses schtasks.exe or at.exe to add and modify task schedules 53->124 60 build3.exe 53->60         started        process17 dnsIp18 100 mas.to 88.99.75.82, 443, 49762 HETZNER-ASDE Germany 55->100 102 65.108.80.190, 49763, 80 ALABANZA-BALTUS United States 55->102 78 d06ed635-68f6-4e9a...57b9a7566438883.zip, Zip 55->78 dropped 80 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 55->80 dropped 82 C:\Users\user\AppData\...\msvcp140[1].dll, PE32 55->82 dropped 86 10 other files (none is malicious) 55->86 dropped 132 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 55->132 134 Tries to harvest and steal browser information (history, passwords, etc) 55->134 136 Tries to steal Crypto Currency Wallets 55->136 62 cmd.exe 55->62         started        84 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 60->84 dropped 64 schtasks.exe 60->64         started        file19 signatures20 process21 process22 66 conhost.exe 62->66         started        68 taskkill.exe 62->68         started        70 timeout.exe 62->70         started        72 conhost.exe 64->72         started       
Detection:
vidar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b/
Threat name:
Win32.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2021-10-18 19:46:57 UTC
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=nkxgpwd42lxshrfzezoi5a63kfbpaaku4zxepmpfiim45j4unavq._file
Verdict:
malicious
Similar samples:
0d701159969acd5fb9bbf6b526fcf8cbf8fd05b48ba0ad4c01af41b8b5b45f72
Stop
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Stop
+ 784 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar botnet:517 discovery persistence ransomware spyware stealer suricata
Link:
https://tria.ge/reports/211019-rtkc2aghdj/
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
Malware Config
C2 Extraction:
http://rlrz.org/fhsgtsspen6
https://mas.to/@oleg98
Unpacked files
SH256 hash:
d3eb4e4bc1c9e42583f64f3918a95545cca2f59d0c66f05736353b817cd2eece
MD5 hash:
1130269cb19cf0ecdc2ca1018fdd4bbf
SHA1 hash:
adfcb3c426cd69a5d4ddf88f392395add55967e6
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/aa938073-1c9d-4cb4-8458-014e04c19e4e/
Parent samples :
6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b
3f1596b4ebd177ec46e57ea0e6d208f32c1ebb93b448a4b5318cc116293d1e71
SH256 hash:
6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b
MD5 hash:
c81d1895f7472cec079c7f12419feaf0
SHA1 hash:
729557420c331200cbad77b7f98a0f5841933a63
Link:
https://www.unpac.me/results/aa938073-1c9d-4cb4-8458-014e04c19e4e/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/6aae67d87cd2/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/6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b

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
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
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: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 6aae67d87cd2ef23c4b9265c8e83db5142f00154e66e47b1e54219cea794682b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1645196/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/198580/

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