MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 11a83b7f651c007cef7ca9490fc560dbfda8cd6b538199e277047c8087c7cee0. 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: 16


Intelligence 16 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 11a83b7f651c007cef7ca9490fc560dbfda8cd6b538199e277047c8087c7cee0
SHA3-384 hash: eec100a9c00a28d239a929fe249bc349c8b48639df8d230dbbe71f49a870d77da5111c454d96b3677738cec69dc8ebff
SHA1 hash: 17674dea310e121f6a4bd05ac310670dc9c4fc5a
MD5 hash: 8fa538666a1e99ff4e77dbae8690c488
humanhash: wisconsin-alanine-harry-triple
File name:8fa538666a1e99ff4e77dbae8690c488.exe
Download: download sample
Signature Stop
Create hunting rule
File size:849'920 bytes
First seen:2021-10-14 11:21:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9ce98f529ec9974717a2fb17152e9a16 (1 x Smoke Loader, 1 x DanaBot, 1 x ArkeiStealer)
ssdeep 12288:RKedggCKudQzpEFfMauPoEy7vmm6JwLA5m1zqr/oo1RX5L7SO9a0A5mSgYYfoRZj:wozkMzhIvtHLfzyn5LD9bA5DgGN0S
Threatray 786 similar samples on MalwareBazaar
TLSH T118050110B7A0C035F1F616F54ABAA3A8E53EBDA0672891CF53C516EE86356D0EC3135B
File icon (PE):PE icon
dhash icon ead8ac9cc6a68ee0 (93 x RedLineStealer, 50 x RaccoonStealer, 15 x Smoke Loader)
Reporter abuse_ch
Tags:exe Ransomware Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
349
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8fa538666a1e99ff4e77dbae8690c488.exe
Verdict:
Suspicious activity
Analysis date:
2021-10-14 21:23:58 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e454a411-572d-44a4-bd58-fc9f69a127da

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/197522/
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/616812dffd35fe780c3fd8a7/reports/6b60d54e-7195-492b-a70a-f0f505010619/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/59f1bbfe-d4b1-4214-9e57-56a5784cb068
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/870464
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 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: 502894 Sample: x8GpMU8C4I.exe Startdate: 14/10/2021 Architecture: WINDOWS Score: 100 117 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->117 119 Multi AV Scanner detection for submitted file 2->119 121 Found ransom note / readme 2->121 123 7 other signatures 2->123 12 x8GpMU8C4I.exe 2->12         started        15 x8GpMU8C4I.exe 2->15         started        17 mstsca.exe 2->17         started        19 3 other processes 2->19 process3 signatures4 133 Detected unpacking (changes PE section rights) 12->133 135 Detected unpacking (overwrites its own PE header) 12->135 137 Contains functionality to inject code into remote processes 12->137 139 Writes many files with high entropy 12->139 21 x8GpMU8C4I.exe 1 17 12->21         started        141 Injects a PE file into a foreign processes 15->141 25 x8GpMU8C4I.exe 13 15->25         started        27 mstsca.exe 15->27         started        29 x8GpMU8C4I.exe 13 19->29         started        31 x8GpMU8C4I.exe 19->31         started        33 mstsca.exe 19->33         started        process5 dnsIp6 93 api.2ip.ua 77.123.139.190, 443, 49714, 49723 VOLIA-ASUA Ukraine 21->93 73 C:\Users\...\x8GpMU8C4I.exe:Zone.Identifier, ASCII 21->73 dropped 35 x8GpMU8C4I.exe 21->35         started        38 icacls.exe 21->38         started        40 schtasks.exe 27->40         started        file7 process8 signatures9 125 Injects a PE file into a foreign processes 35->125 42 x8GpMU8C4I.exe 1 25 35->42         started        47 conhost.exe 40->47         started        process10 dnsIp11 101 znpst.top 189.129.205.194, 49726, 80 UninetSAdeCVMX Mexico 42->101 103 rlrz.org 210.182.29.70, 49727, 49736, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 42->103 105 api.2ip.ua 42->105 85 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 42->85 dropped 87 C:\_readme.txt, ASCII 42->87 dropped 89 C:\Users\user\...\x8GpMU8C4I.exe.nqsq (copy), MS-DOS 42->89 dropped 91 54 other files (37 malicious) 42->91 dropped 143 Infects executable files (exe, dll, sys, html) 42->143 145 Modifies existing user documents (likely ransomware behavior) 42->145 49 build2.exe 42->49         started        52 build3.exe 42->52         started        file12 signatures13 process14 signatures15 107 Detected unpacking (changes PE section rights) 49->107 109 Detected unpacking (overwrites its own PE header) 49->109 111 Writes many files with high entropy 49->111 113 Injects a PE file into a foreign processes 49->113 54 build2.exe 49->54         started        115 Uses schtasks.exe or at.exe to add and modify task schedules 52->115 59 build3.exe 52->59         started        process16 dnsIp17 95 mas.to 88.99.75.82, 443, 49745 HETZNER-ASDE Germany 54->95 97 65.108.80.190, 49746, 80 ALABANZA-BALTUS United States 54->97 99 192.168.2.1 unknown unknown 54->99 75 d06ed635-68f6-4e9a...57b9a4092597804.zip, Zip 54->75 dropped 77 C:\Users\user\AppData\...\softokn3[1].dll, PE32 54->77 dropped 79 C:\Users\user\AppData\...\mozglue[1].dll, PE32 54->79 dropped 83 10 other files (none is malicious) 54->83 dropped 127 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 54->127 129 Tries to harvest and steal browser information (history, passwords, etc) 54->129 131 Tries to steal Crypto Currency Wallets 54->131 61 cmd.exe 54->61         started        81 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 59->81 dropped 63 schtasks.exe 59->63         started        file18 signatures19 process20 process21 65 conhost.exe 61->65         started        67 taskkill.exe 61->67         started        69 timeout.exe 61->69         started        71 conhost.exe 63->71         started       
Detection:
vidar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/11a83b7f651c007cef7ca9490fc560dbfda8cd6b538199e277047c8087c7cee0/
Threat name:
Win32.Ransomware.Stop
Create hunting rule
Status:
Malicious
First seen:
2021-10-14 04:08:51 UTC
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cgudw73fdqahz334vfeq7rla3p62rtllkoaztytxar6ibb6hz3qa._file
Verdict:
malicious
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+ 776 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
Link:
https://tria.ge/reports/211014-ngk71shab3/
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 behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
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
Malware Config
C2 Extraction:
https://mas.to/@oleg98
http://rlrz.org/fhsgtsspen6
Unpacked files
SH256 hash:
d5bd183363168574cbb21e3b2b8eee76eb548efc255385469712072b33bcd04a
MD5 hash:
023ef322fd21ea4bbd5d087b66cb33b6
SHA1 hash:
81ca34417048f7d79081fbca4c267695fad73552
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/ab61aac8-acd3-42c5-88ba-0343d0d50802/
SH256 hash:
11a83b7f651c007cef7ca9490fc560dbfda8cd6b538199e277047c8087c7cee0
MD5 hash:
8fa538666a1e99ff4e77dbae8690c488
SHA1 hash:
17674dea310e121f6a4bd05ac310670dc9c4fc5a
Link:
https://www.unpac.me/results/ab61aac8-acd3-42c5-88ba-0343d0d50802/
Malware family:
STOP
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/11a83b7f651c/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/11a83b7f651c007cef7ca9490fc560dbfda8cd6b538199e277047c8087c7cee0

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.

Web download

Stop

Executable exe 11a83b7f651c007cef7ca9490fc560dbfda8cd6b538199e277047c8087c7cee0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1645196/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/197522/

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