MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9dfe173d27af62da7c78754527de5dd892bab94b7cd1658e087c7e64f86211ba. 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 6 File information Comments

SHA256 hash: 9dfe173d27af62da7c78754527de5dd892bab94b7cd1658e087c7e64f86211ba
SHA3-384 hash: 58ee1618ab5c19491a1512cc7012817d24502f9385eb281a144cb44659c610ccfe8efec73510e5b0f8850c642e6f7225
SHA1 hash: 3a8980599d3b387a84e66e299ba23b1756ffd1bc
MD5 hash: 75868be74118ea4ede0f5970a958f93b
humanhash: lima-fix-nineteen-hotel
File name:9dfe173d27af62da7c78754527de5dd892bab94b7cd1658e087c7e64f86211ba
Download: download sample
Signature Stop
File size:835'072 bytes
First seen:2021-09-03 09:04:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 60cc0daaa74806110a4d23b786f367f8 (2 x RaccoonStealer, 1 x Stop)
ssdeep 12288:jLJZKvHZc3HEOP0odGgeOs1nLmt6XGTmG6VBaNazMmcCMfnuIp0zX7+OmPrP3u:RUHZiHVs1L/wm1BaNiMmcCMfnui/Pu
Threatray 472 similar samples on MalwareBazaar
TLSH T18305F130AAA0C037E7B712F49576427CA4397A705B3C80DBD2D56AEE26352F4AD3135B
dhash icon d824e790c4e72158 (30 x RaccoonStealer, 18 x RedLineStealer, 16 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
155
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9dfe173d27af62da7c78754527de5dd892bab94b7cd1658e087c7e64f86211ba
Verdict:
Suspicious activity
Analysis date:
2021-09-03 09:46:13 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
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:
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (changes PE section rights)
Found malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 477191 Sample: Wk0Bpt5hPk Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 49 astdg.top 2->49 51 api.2ip.ua 2->51 61 Found malware configuration 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 Found ransom note / readme 2->65 67 3 other signatures 2->67 9 Wk0Bpt5hPk.exe 2->9         started        12 Wk0Bpt5hPk.exe 2->12         started        14 Wk0Bpt5hPk.exe 2->14         started        16 2 other processes 2->16 signatures3 process4 signatures5 71 Injects a PE file into a foreign processes 9->71 18 Wk0Bpt5hPk.exe 1 16 9->18         started        73 Detected unpacking (changes PE section rights) 12->73 75 Contains functionality to inject code into remote processes 12->75 23 Wk0Bpt5hPk.exe 1 16 12->23         started        77 Multi AV Scanner detection for dropped file 14->77 79 Machine Learning detection for dropped file 14->79 25 Wk0Bpt5hPk.exe 12 14->25         started        27 Wk0Bpt5hPk.exe 12 16->27         started        process6 dnsIp7 53 192.168.2.1 unknown unknown 18->53 55 astdg.top 18->55 37 C:\_readme.txt, ASCII 18->37 dropped 39 C:\Users\user\...\Wk0Bpt5hPk.exe.orkf (copy), data 18->39 dropped 41 C:\Users\user\Desktop\Wk0Bpt5hPk.exe, data 18->41 dropped 47 3 other malicious files 18->47 dropped 69 Modifies existing user documents (likely ransomware behavior) 18->69 57 api.2ip.ua 77.123.139.190, 443, 49707, 49708 VOLIA-ASUA Ukraine 23->57 43 C:\Users\user\AppData\...\Wk0Bpt5hPk.exe, PE32 23->43 dropped 45 C:\Users\...\Wk0Bpt5hPk.exe:Zone.Identifier, ASCII 23->45 dropped 29 Wk0Bpt5hPk.exe 23->29         started        32 icacls.exe 23->32         started        file8 signatures9 process10 signatures11 81 Injects a PE file into a foreign processes 29->81 34 Wk0Bpt5hPk.exe 12 29->34         started        process12 dnsIp13 59 api.2ip.ua 34->59
Threat name:
Win32.Ransomware.StopCrypt
Status:
Malicious
First seen:
2021-08-31 13:44:40 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
35 of 43 (81.40%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar botnet:517 discovery persistence ransomware spyware stealer suricata
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
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 ransomeware
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:
https://romkaxarit.tumblr.com/
Unpacked files
SH256 hash:
9dfe173d27af62da7c78754527de5dd892bab94b7cd1658e087c7e64f86211ba
MD5 hash:
75868be74118ea4ede0f5970a958f93b
SHA1 hash:
3a8980599d3b387a84e66e299ba23b1756ffd1bc
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:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_STOP
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
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:Vidar
Author:kevoreilly
Description:Vidar Payload

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments