MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f. 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 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f
SHA3-384 hash: 4925a6f5acef7a71b2ba6907da9e7b860dd69bd31818708952e56bd1810ec9df457a8288f1582114cc036cf390909b76
SHA1 hash: 9e61c71225af4989d03d56ac706bbd4af8734987
MD5 hash: ae0668199e124c4b08b9abb81e113c00
humanhash: beer-nuts-jig-ceiling
File name:ae0668199e124c4b08b9abb81e113c00.exe
Download: download sample
Signature Stop
Create hunting rule
File size:749'568 bytes
First seen:2021-07-12 08:46:11 UTC
Last seen:2021-07-12 09:59:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash cec94303e57d8af59ab472919ab3096b (1 x Stop)
ssdeep 12288:Uv07CTd+5ejuICucR8oHzOONkTfIdQEL5AUYhQaqHvl2drN92xM+66jME:S0WR+5eKICNR8oaOiIt5ArmvEdGxjbA
Threatray 353 similar samples on MalwareBazaar
TLSH T145F4121072F2D532D6E205305DB487B42A7FF82729749A8A6F462B1F5E333925A36F13
Reporter abuse_ch
Tags:exe Ransomware.Stop Stop

Intelligence

File Origin
# of uploads :
2
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ae0668199e124c4b08b9abb81e113c00.exe
Verdict:
Suspicious activity
Analysis date:
2021-07-12 08:54:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/48b59bf4-4081-43d4-8953-80a5d08171dd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/170989/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.33549.17957.16848.UNOFFICIAL
Create hunting rule

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/dbfed49e-d3ca-46e8-86b1-5df05d573c11
Result
Threat name:
Djvu Vidar
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/814697
Signature
Antivirus detection for URL or domain
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
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 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 browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 447107 Sample: 9nTBJtJs1E.exe Startdate: 12/07/2021 Architecture: WINDOWS Score: 100 85 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->85 87 Found malware configuration 2->87 89 Antivirus detection for URL or domain 2->89 91 7 other signatures 2->91 12 9nTBJtJs1E.exe 2->12         started        15 9nTBJtJs1E.exe 2->15         started        17 9nTBJtJs1E.exe 2->17         started        process3 signatures4 113 Detected unpacking (changes PE section rights) 12->113 115 Detected unpacking (overwrites its own PE header) 12->115 117 Contains functionality to inject code into remote processes 12->117 119 Writes many files with high entropy 12->119 19 9nTBJtJs1E.exe 1 18 12->19         started        121 Injects a PE file into a foreign processes 15->121 23 9nTBJtJs1E.exe 13 15->23         started        25 9nTBJtJs1E.exe 17->25         started        process5 dnsIp6 77 api.2ip.ua 77.123.139.190, 443, 49725, 49730 VOLIA-ASUA Ukraine 19->77 61 C:\Users\...\9nTBJtJs1E.exe:Zone.Identifier, ASCII 19->61 dropped 27 9nTBJtJs1E.exe 19->27         started        30 icacls.exe 19->30         started        79 192.168.2.1 unknown unknown 23->79 file7 process8 signatures9 111 Injects a PE file into a foreign processes 27->111 32 9nTBJtJs1E.exe 1 23 27->32         started        process10 dnsIp11 71 dgos.top 165.22.218.24, 49731, 80 DIGITALOCEAN-ASNUS United States 32->71 73 astdg.top 41.41.255.235, 49732, 80 TE-ASTE-ASEG Egypt 32->73 75 api.2ip.ua 32->75 53 C:\Users\user\AppData\Local\...\Settings.ft, DOS 32->53 dropped 55 C:\Users\user\AppData\...\Placement[1].json, COM 32->55 dropped 57 C:\...\Update_2019-06-27_102202_930-91c.log, DOS 32->57 dropped 59 189 other files (179 malicious) 32->59 dropped 93 Infects executable files (exe, dll, sys, html) 32->93 95 Modifies existing user documents (likely ransomware behavior) 32->95 37 build2.exe 32->37         started        file12 signatures13 process14 signatures15 97 Multi AV Scanner detection for dropped file 37->97 99 Detected unpacking (changes PE section rights) 37->99 101 Detected unpacking (overwrites its own PE header) 37->101 103 2 other signatures 37->103 40 build2.exe 37->40         started        process16 dnsIp17 81 sergeevih43.tumblr.com 74.114.154.22, 443, 49738 AUTOMATTICUS Canada 40->81 83 162.55.223.232, 49742, 80 ACPCA United States 40->83 63 C:\Users\user\AppData\...\softokn3[1].dll, PE32 40->63 dropped 65 C:\Users\user\AppData\...\freebl3[1].dll, PE32 40->65 dropped 67 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 40->67 dropped 69 9 other files (none is malicious) 40->69 dropped 105 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 40->105 107 Tries to harvest and steal browser information (history, passwords, etc) 40->107 109 Tries to steal Crypto Currency Wallets 40->109 45 cmd.exe 40->45         started        file18 signatures19 process20 process21 47 conhost.exe 45->47         started        49 taskkill.exe 45->49         started        51 timeout.exe 45->51         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f/
Threat name:
Win32.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2021-07-12 06:21:02 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
23 of 46 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zj7sdlkptnokecgquq5xn3ohxo44ngbits2py4mmrbdidro46ehq._file
Verdict:
malicious
Similar samples:
11a5624d486d01bf1ebbf7d808524d44b26965f7e9ec89abebf75a9afc34b165
Stop
496b5885ff8f521c91ca037338e188ea0374bf86816d0c804d3010fd2f5fec38
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4fc4936de4eb693ec57ae17e722c1c68e46afbc0c82f3c45d254c39571008f8b
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75c3a83073d9b15d4f47308b5d688f1ec07422419e3bd54e78f6ef8683d42e5c
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9634e7bbda11d42ed7eda4f7cc1965dea16ab45877cb425d322e830cf63a0657
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9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9
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aa8c5d42026ac9a483f1984f762441d7f5805ef914819b473f9e15353995cc99
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b847a31ccac4306b56c4c899814b7afee46c66331aeb465f3727200bb025de54
Stop
d0283a485913dc517dc7fbee13c7dcce350b8309acc244db1a1923436fbce614
Stop
d56681bb83bd1e54372061cf2e24017106e1fc6a26a86388c907db320e105060
Stop
+ 343 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:517 discovery persistence spyware stealer
Link:
https://tria.ge/reports/210712-82134qfqns/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
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
Vidar
Malware Config
C2 Extraction:
https://sergeevih43.tumblr.com/
Unpacked files
SH256 hash:
73228a57289666d98769ea178a6a97f532b613ed6e05f6af986799f14344ebe1
MD5 hash:
7a06560f3aa1bb8bce36f0beab0899e2
SHA1 hash:
c9a7226a5953617b190d658409e27f664c1fa196
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/5ff46ad9-344f-4df3-9dc2-a7cdde53a605/
Parent samples :
9634e7bbda11d42ed7eda4f7cc1965dea16ab45877cb425d322e830cf63a0657
bfbf6bb9393e511a06e90d432e7538059ae75f9f1525f0f503d1d0bec0d32124
ff9e059a789e94573fb32a918657d5c5c59b5395fab873cbcec7b1543435fe93
808047c44b88e64eaeaa2c63b136dce30013db875ebdcfe24a22e0e292a757cc
ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f
a88f6e7db37ee058a26742f7cd2d92927eeb70e863c025a9758a7b710e152f81
SH256 hash:
ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f
MD5 hash:
ae0668199e124c4b08b9abb81e113c00
SHA1 hash:
9e61c71225af4989d03d56ac706bbd4af8734987
Link:
https://www.unpac.me/results/5ff46ad9-344f-4df3-9dc2-a7cdde53a605/
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/ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f

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: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 ca7f21ad4f9b5ca208d0a43b76edc7bbb9c698289cb4fc718c884681c5dcf10f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1423741/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/170989/

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