MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3d26db7812778043abdf20ad3ff5caf68be3752fcd33de75d1bea8f515ed3d2. 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: 11


Intelligence 11 IOCs 1 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3d26db7812778043abdf20ad3ff5caf68be3752fcd33de75d1bea8f515ed3d2
SHA3-384 hash: 373b006f223fe970c480b252dd464c3941cbd5563c4cc10702f0d193585fadf933d5aafcfcb2b91c1b61e1ad26409b0a
SHA1 hash: eb8c95dc050978d10c05073b0d5311f86da986ed
MD5 hash: f3f35dcb69fca49ae55a22812770ecb2
humanhash: kilo-nuts-fish-crazy
File name:f3f35dcb69fca49ae55a22812770ecb2.exe
Download: download sample
Signature Stop
Create hunting rule
File size:792'576 bytes
First seen:2021-03-29 23:25:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 77d323863674c0a1ad49116cbc6a8d09 (1 x RaccoonStealer, 1 x RedLineStealer, 1 x Stop)
ssdeep 12288:RQmSrW02kBhiCu72Vv5g7WwjAKUYDZwqOCtyqnWa9ErUNTltPRqxqhaM:RKrRZBhiDmv5bgXxwqOCkaYyf5QbM
TLSH 38F4122476D0D132C0EA40774269C7B1CFBB7831F569A98B7BD41AB91F68BE1DA1130B
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://static.parafia-strumiany.pl/

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://static.parafia-strumiany.pl/ https://threatfox.abuse.ch/ioc/5909/

Intelligence

File Origin
# of uploads :
1
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
stop.exe
Verdict:
Malicious activity
Analysis date:
2021-03-27 01:07:05 UTC
Tags:
trojan ransomware stop loader stealer vidar
Link:
https://app.any.run/tasks/321f3348-aa29-4be4-bba8-e80f10431f57

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/127841/
Detection(s):
Win.Malware.Generic-9847433-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Sending a UDP request
Deleting a recently created file
Sending an HTTP GET request
Creating a window
Creating a process from a recently created file
Connection attempt
Reading critical registry keys
Replacing files
Delayed writing of the file
Launching cmd.exe command interpreter
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Stealing user critical data
Launching a tool to kill processes
Enabling autorun by creating a file
Forced shutdown of a browser
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.
Gathering data
Result
Threat name:
Djvu Taurus Stealer Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/657795
Signature
Antivirus detection for URL or domain
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
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
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
Tries to steal Instant Messenger accounts or passwords
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Taurus Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 377828 Sample: TA6uW7MB7B.exe Startdate: 30/03/2021 Architecture: WINDOWS Score: 100 76 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->76 78 Multi AV Scanner detection for domain / URL 2->78 80 Antivirus detection for URL or domain 2->80 82 8 other signatures 2->82 9 TA6uW7MB7B.exe 1 18 2->9         started        14 TA6uW7MB7B.exe 13 2->14         started        16 TA6uW7MB7B.exe 2->16         started        process3 dnsIp4 68 api.2ip.ua 77.123.139.190, 443, 49718, 49719 VOLIA-ASUA Ukraine 9->68 54 C:\Users\...\TA6uW7MB7B.exe:Zone.Identifier, ASCII 9->54 dropped 86 Detected unpacking (changes PE section rights) 9->86 88 Detected unpacking (overwrites its own PE header) 9->88 90 Writes many files with high entropy 9->90 18 TA6uW7MB7B.exe 1 25 9->18         started        23 icacls.exe 9->23         started        file5 signatures6 process7 dnsIp8 64 jfas.top 34.105.199.171, 49720, 49721, 49723 GOOGLEUS United States 18->64 66 api.2ip.ua 18->66 46 C:\Users\user\AppData\Local\...\MSIMGSIZ.DAT, PARIX 18->46 dropped 48 C:\Users\user\AppData\Local\...\updatewin.exe, PE32 18->48 dropped 50 C:\Users\user\AppData\Local\...\5.exe, PE32 18->50 dropped 52 196 other files (188 malicious) 18->52 dropped 84 Modifies existing user documents (likely ransomware behavior) 18->84 25 5.exe 18->25         started        30 updatewin.exe 13 18->30         started        file9 signatures10 process11 dnsIp12 70 static.parafia-strumiany.pl 104.244.76.207, 49731, 80 PONYNETUS United States 25->70 72 api.faceit.com 104.17.62.50, 443, 49730 CLOUDFLARENETUS United States 25->72 56 d06ed635-68f6-4e9a...57b9a9390429827.zip, Zip 25->56 dropped 58 C:\Users\user\AppData\...\softokn3[1].dll, PE32 25->58 dropped 60 C:\Users\user\AppData\...\freebl3[1].dll, PE32 25->60 dropped 62 10 other files (none is malicious) 25->62 dropped 92 Detected unpacking (changes PE section rights) 25->92 94 Detected unpacking (overwrites its own PE header) 25->94 96 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 25->96 104 4 other signatures 25->104 32 cmd.exe 25->32         started        74 reputinodaedo.pw 104.21.6.117, 443, 49728 CLOUDFLARENETUS United States 30->74 98 Multi AV Scanner detection for dropped file 30->98 100 Machine Learning detection for dropped file 30->100 102 Tries to harvest and steal browser information (history, passwords, etc) 30->102 34 cmd.exe 30->34         started        file13 signatures14 process15 process16 36 conhost.exe 32->36         started        38 taskkill.exe 32->38         started        40 timeout.exe 32->40         started        42 conhost.exe 34->42         started        44 timeout.exe 34->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3d26db7812778043abdf20ad3ff5caf68be3752fcd33de75d1bea8f515ed3d2/
Threat name:
Win32.Trojan.Injuke
Create hunting rule
Status:
Malicious
First seen:
2021-03-26 22:19:28 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
32 of 48 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=upjg3n4be54aiov56ifnh724v5ul4n2s7tjt3z25dpvi6uk62pja._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:taurus_stealer family:vidar discovery persistence spyware stealer trojan
Link:
https://tria.ge/reports/210329-3y31tv9mha/
Behaviour
Checks processor information in registry
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
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 local data of messenger clients
Reads user/profile data of web browsers
Executes dropped EXE
Taurus Stealer
Vidar
Unpacked files
SH256 hash:
951f0884907d22df42210ff25ddd0b54a87f617c0741557084a280a3b96d968f
MD5 hash:
0fe3cfdf79ddb8bc71085d65fa496be2
SHA1 hash:
459bb6904a620b44e53354dd7e8b47d353285257
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/757c3d48-d64f-4aab-abf9-ead8a4eaf948/
Parent samples :
2ae59af40109d186eb8999211e8ad933d2fffec609a2bdbd87a8aa4e9654a111
a3d26db7812778043abdf20ad3ff5caf68be3752fcd33de75d1bea8f515ed3d2
SH256 hash:
a3d26db7812778043abdf20ad3ff5caf68be3752fcd33de75d1bea8f515ed3d2
MD5 hash:
f3f35dcb69fca49ae55a22812770ecb2
SHA1 hash:
eb8c95dc050978d10c05073b0d5311f86da986ed
Link:
https://www.unpac.me/results/757c3d48-d64f-4aab-abf9-ead8a4eaf948/
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/a3d26db7812778043abdf20ad3ff5caf68be3752fcd33de75d1bea8f515ed3d2

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:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

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/127841/

Comments