MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 302c818ff4e207e4ecd8e66ae38fb7368c39b99a883f61dca027dff6d2b996da. 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 YARA 3 File information Comments

SHA256 hash: 302c818ff4e207e4ecd8e66ae38fb7368c39b99a883f61dca027dff6d2b996da
SHA3-384 hash: 7132869e5b310944647766d40bdd11fd4d14ead60106c43fc8824f7b62221816b43a65bebeb7d733180dfd1a954cde28
SHA1 hash: f3685a991af629a4736556a3a61e84b67564db8e
MD5 hash: e34b53cdf329b33e28a67871e6d3f656
humanhash: uniform-golf-nineteen-michigan
File name:e34b53cdf329b33e28a67871e6d3f656.exe
Download: download sample
Signature Stop
File size:776'704 bytes
First seen:2021-08-30 07:37:15 UTC
Last seen:2021-08-30 09:32:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f047c2672b00c79ca70d8f2e6ab5c3f9 (17 x RaccoonStealer, 2 x Amadey, 2 x RedLineStealer)
ssdeep 12288:qzFFArXkmFckomIBIQkBXiJMdTxrVJzfIEPrroUidRDLXurcOm2QwsIejkmRv1Hb:Z/ekoXSQ69rDzfxroTdRfercrDIIRvZ
Threatray 448 similar samples on MalwareBazaar
TLSH T1FDF412F176B0C832F8C295704886D2A41A17BD517A259137FA4727AEFE7CD81A22D337
dhash icon fcfcd4f4d4dcd8c8 (9 x RedLineStealer, 6 x RaccoonStealer, 3 x Stop)
Reporter abuse_ch
Tags:exe Ransomware Stop

Intelligence


File Origin
# of uploads :
2
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e34b53cdf329b33e28a67871e6d3f656.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-30 07:39:54 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Deleting a recently created file
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Sending an HTTP GET request
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Malware family:
STOP Ransomware
Verdict:
Malicious
Result
Threat name:
Djvu Vidar
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
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 submitted file
Sigma detected: Suspicious Svchost Process
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
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 473776 Sample: STMZAa7KVx.exe Startdate: 30/08/2021 Architecture: WINDOWS Score: 100 60 api.2ip.ua 2->60 84 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->84 86 Multi AV Scanner detection for domain / URL 2->86 88 Antivirus detection for URL or domain 2->88 90 8 other signatures 2->90 11 STMZAa7KVx.exe 2->11         started        14 STMZAa7KVx.exe 2->14         started        16 STMZAa7KVx.exe 2->16         started        signatures3 process4 signatures5 100 Detected unpacking (changes PE section rights) 11->100 102 Contains functionality to inject code into remote processes 11->102 104 Writes many files with high entropy 11->104 18 STMZAa7KVx.exe 1 17 11->18         started        106 Injects a PE file into a foreign processes 14->106 22 STMZAa7KVx.exe 13 14->22         started        process6 dnsIp7 62 api.2ip.ua 77.123.139.190, 443, 49724, 49725 VOLIA-ASUA Ukraine 18->62 42 C:\Users\...\STMZAa7KVx.exe:Zone.Identifier, ASCII 18->42 dropped 24 STMZAa7KVx.exe 18->24         started        27 icacls.exe 18->27         started        64 192.168.2.1 unknown unknown 22->64 file8 process9 signatures10 98 Injects a PE file into a foreign processes 24->98 29 STMZAa7KVx.exe 1 25 24->29         started        process11 dnsIp12 70 astdg.top 197.44.54.172, 49727, 49729, 80 TE-ASTE-ASEG Egypt 29->70 72 securebiz.org 62.201.235.58, 49726, 80 IQNETWORKSIQ Iraq 29->72 74 api.2ip.ua 29->74 52 C:\Users\user\AppData\...\appsconversions.txt, DOS 29->52 dropped 54 C:\Users\user\...\UnistackCritical.etl, DOS 29->54 dropped 56 rs=ACT90oHUigSRAgo...4LXNuU-unIPXQ[1].js, DOS 29->56 dropped 58 366 other files (350 malicious) 29->58 dropped 108 Modifies existing user documents (likely ransomware behavior) 29->108 34 build2.exe 29->34         started        file13 signatures14 process15 signatures16 76 Antivirus detection for dropped file 34->76 78 Detected unpacking (changes PE section rights) 34->78 80 Machine Learning detection for dropped file 34->80 82 Injects a PE file into a foreign processes 34->82 37 build2.exe 34->37         started        process17 dnsIp18 66 49.12.198.69, 49732, 80 HETZNER-ASDE Germany 37->66 68 kipriauka.tumblr.com 74.114.154.18, 443, 49730 AUTOMATTICUS Canada 37->68 44 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 37->44 dropped 46 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 37->46 dropped 48 C:\Users\user\AppData\...\mozglue[1].dll, PE32 37->48 dropped 50 9 other files (none is malicious) 37->50 dropped 92 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->92 94 Tries to harvest and steal browser information (history, passwords, etc) 37->94 96 Tries to steal Crypto Currency Wallets 37->96 file19 signatures20
Threat name:
Win32.Infostealer.Tepfer
Status:
Malicious
First seen:
2021-08-29 22:41:24 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:vidar discovery persistence spyware stealer suricata
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
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
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:SUSP_XORed_URL_in_EXE
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_stop_auto
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 302c818ff4e207e4ecd8e66ae38fb7368c39b99a883f61dca027dff6d2b996da

(this sample)

  
Delivery method
Distributed via web download

Comments