MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
SHA3-384 hash: 4e6e87f9fc61b7d2d3a8366ab884a631d92a484f36606a9253429ae1d8c10ce4e8eeb03241987c48fa5f02200e65904f
SHA1 hash: 4e9f155ff74e37b7dc7f498973c893768b03763c
MD5 hash: 8a9c223a71f2214cbd68d6afea001947
humanhash: eleven-mountain-bluebird-sink
File name:8a9c223a71f2214cbd68d6afea001947.exe
Download: download sample
Signature Stop
Create hunting rule
File size:731'136 bytes
First seen:2021-04-30 18:01:22 UTC
Last seen:2021-04-30 19:02:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 83bd011ef23b4af0fb7ccf87a8ce5854 (2 x ArkeiStealer, 2 x RedLineStealer, 1 x RaccoonStealer)
ssdeep 12288:mdYWKnCnaCcDvfiL/bzLQV7+CsF8pvLMZ0zfCtENg9GaDPzvC7IkLAGjz:hlCnaD3iTE7+Cs+5L1zrNvaDPI9AWz
Threatray 42 similar samples on MalwareBazaar
TLSH F1F4121139C8D0B6D05352BA404ACB7929FEB91229672EDF6FD952F96F207D2DB2430C
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://116.203.140.224/

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://116.203.140.224/ https://threatfox.abuse.ch/ioc/24961/

Intelligence

File Origin
# of uploads :
3
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/147705/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46213395.6936.26977.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
DNS request
Sending a custom TCP request
Sending a UDP 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
Creating a process from a recently created file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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.
Result
Threat name:
Djvu Zorab
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/705418
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
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
Sigma detected: BlueMashroom DLL Load
Sigma detected: Disable of ETW Trace
Sigma detected: Hurricane Panda Activity
Sigma detected: Mustang Panda Dropper
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)
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Zorab Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 401633 Sample: Rk5T3e6g5m.exe Startdate: 30/04/2021 Architecture: WINDOWS Score: 100 59 api.faceit.com 2->59 61 api.2ip.ua 2->61 67 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->67 69 Antivirus detection for URL or domain 2->69 71 Multi AV Scanner detection for dropped file 2->71 73 10 other signatures 2->73 7 Rk5T3e6g5m.exe 1 18 2->7         started        12 Rk5T3e6g5m.exe 13 2->12         started        14 Rk5T3e6g5m.exe 2->14         started        signatures3 process4 dnsIp5 63 api.2ip.ua 77.123.139.190, 443, 49718, 49733 VOLIA-ASUA Ukraine 7->63 51 C:\Users\...\Rk5T3e6g5m.exe:Zone.Identifier, ASCII 7->51 dropped 75 Detected unpacking (changes PE section rights) 7->75 77 Detected unpacking (overwrites its own PE header) 7->77 79 Writes many files with high entropy 7->79 16 Rk5T3e6g5m.exe 7->16         started        21 WerFault.exe 9 7->21         started        23 WerFault.exe 9 7->23         started        31 7 other processes 7->31 25 WerFault.exe 12->25         started        27 WerFault.exe 14->27         started        29 WerFault.exe 14->29         started        file6 signatures7 process8 dnsIp9 53 jfes.top 31.40.251.99, 49738, 49739, 49746 ITLDC-NLUA Russian Federation 16->53 55 api.2ip.ua 16->55 33 C:\Users\user\...\UnistackCritical.etl.0001, COM 16->33 dropped 35 C:\Users\user\AppData\...\UrlMalBin.store, COM 16->35 dropped 47 178 other files (167 malicious) 16->47 dropped 65 Modifies existing user documents (likely ransomware behavior) 16->65 57 192.168.2.1 unknown unknown 21->57 37 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 21->37 dropped 39 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 23->39 dropped 41 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 25->41 dropped 43 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 27->43 dropped 45 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 29->45 dropped 49 6 other malicious files 31->49 dropped file10 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d/
Threat name:
Win32.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2021-04-29 17:27:45 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pr256y54ic7muxgpmxnxnqzvhhxj6ndiuqkj4gqmbp6tbfe7jngq._file
Verdict:
malicious
Similar samples:
02d61f5f80a30ae80912d6ffcaf78e85fe6871b1bba5633a78a41c9f1ad13d1a
Stop
0e55e17532909ad5ad34eb4e35d791b27c6951dd15a8baba34c29ae572c884d0
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20ebe8ff1da6f2023a43b3e3cbe14479961699f9dec0324f72070fa2b275eaae
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2ae59af40109d186eb8999211e8ad933d2fffec609a2bdbd87a8aa4e9654a111
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5fba5879d38cea0fd0f956b583c7b5ecd0105928d26315935d4f7a8f9797d885
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9feb26b9550dbf46719374757468d95b6882c00fd3ca65a02e9edf2854e900a9
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aa8c5d42026ac9a483f1984f762441d7f5805ef914819b473f9e15353995cc99
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b055016e0d82c57b58cd126f26b4b8f4dae1441f0019bdaa42452e815f128944
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e81e9dfe89a98449992b1ca9e4acb9905b606dc3de186b9de94241bde3b230be
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e8bcd430d48c430ced6992340cbce21ffc1a4d8cc60e6255b76870d33a5ea6b9
Stop
+ 32 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:djvu family:vidar discovery evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/210430-fkbbjds7hj/
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
Program crash
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
Disables Task Manager via registry modification
Downloads MZ/PE file
Executes dropped EXE
Deletes Windows Defender Definitions
Djvu Ransomware
Suspicious use of NtCreateProcessExOtherParentProcess
Vidar
Unpacked files
SH256 hash:
b58165bb5a4f9040d187791e870f691c449e59d3f5fa8312ba7655864236328f
MD5 hash:
5fe929b15555feeb7e4ef768211d8caa
SHA1 hash:
49f52ac9a44d3259167dbf20e7328fdaf287ac7f
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/4b032334-d854-426f-941f-893568873c58/
Parent samples :
7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
1da3193c52b5ec3a14b36acbc9c92266a2a531399e33c1e3a209e828eda7a0a5
7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02
9ded335a6f346de4aafbc4f8c08e90dce1f064820b13d6580f01731c9837d7a8
a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3
c14987c4c6fc2de2cac43355964465d7611652e29f699d64fa292399f526c103
e833b7fc4bf14527edb120ee4e691a660b21f93b1ec22bf15881bdcee4c5bb8d
712e9e9e2976782e38288d45a2d177f1dc3757c7610b4b9bae9e35be9f20b913
SH256 hash:
7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
MD5 hash:
8a9c223a71f2214cbd68d6afea001947
SHA1 hash:
4e9f155ff74e37b7dc7f498973c893768b03763c
Link:
https://www.unpac.me/results/4b032334-d854-426f-941f-893568873c58/
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/7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d

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/147705/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-30 19:11:38 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
1) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
2) [C0049] File System Micro-objective::Get File Attributes
3) [C0051] File System Micro-objective::Read File
4) [C0052] File System Micro-objective::Writes File
5) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
6) [C0040] Process Micro-objective::Allocate Thread Local Storage
7) [C0041] Process Micro-objective::Set Thread Local Storage Value
8) [C0018] Process Micro-objective::Terminate Process
9) [C0039] Process Micro-objective::Terminate Thread