MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02
SHA3-384 hash: 16b7e7eda0a5adaaca61e37efbfbae5d9a0489c9e9b635f93b6f133e06eade36f082b6ace0be2a54e444deb4dae5a412
SHA1 hash: 786c8a03821285196f1da6573ddce268cc3fa89b
MD5 hash: b7673d71b6b55cc5591ad7e3826c663c
humanhash: river-blue-stairway-equal
File name:7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02
Download: download sample
Signature Stop
Create hunting rule
File size:848'896 bytes
First seen:2021-05-03 01:14:31 UTC
Last seen:2021-05-03 02:01:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b79260e801e441fc0b24699de0c89d68 (1 x Stop, 1 x FickerStealer)
ssdeep 12288:dLmK2FaxYmrC+fCHsMZ4qVkzU9sIOy9WfHh8P2AW1cE7vzkCDljQe11SI0:UdiYmEspGMcsIrM6PI1X777ljQeTS
Threatray 52 similar samples on MalwareBazaar
TLSH F805F120BB90D235E5B312F849BA937D66393E606B2490CB53F476ED53342E1AF3075A
Reporter fbgwls245
Tags:.wrui djvu Ransomware Stop

Intelligence

File Origin
# of uploads :
2
# of downloads :
1'232
Origin country :
n/a
Vendor Threat Intelligence
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/148048/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
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
Deleting 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:
UNKNOWN
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
Create hunting rule
Detection:
malicious
Classification:
rans.spre.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/706816
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Mutes Antivirus updates and installments via hosts file black listing
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Suspicious powershell command line found
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)
Writes many files with high entropy
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 402328 Sample: YVNw1T4L7m Startdate: 03/05/2021 Architecture: WINDOWS Score: 100 68 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->68 70 Antivirus detection for URL or domain 2->70 72 Multi AV Scanner detection for submitted file 2->72 74 5 other signatures 2->74 10 YVNw1T4L7m.exe 1 16 2->10         started        15 YVNw1T4L7m.exe 12 2->15         started        17 YVNw1T4L7m.exe 12 2->17         started        19 YVNw1T4L7m.exe 2->19         started        process3 dnsIp4 66 api.2ip.ua 77.123.139.190, 443, 49718, 49725 VOLIA-ASUA Ukraine 10->66 56 C:\Users\user\AppData\...\YVNw1T4L7m.exe, PE32 10->56 dropped 58 C:\Users\...\YVNw1T4L7m.exe:Zone.Identifier, ASCII 10->58 dropped 84 Detected unpacking (changes PE section rights) 10->84 86 Detected unpacking (overwrites its own PE header) 10->86 88 Writes many files with high entropy 10->88 21 YVNw1T4L7m.exe 1 27 10->21         started        26 icacls.exe 10->26         started        file5 signatures6 process7 dnsIp8 62 jfes.top 31.40.251.99, 49726, 49727, 49729 ITLDC-NLUA Russian Federation 21->62 64 api.2ip.ua 21->64 48 C:\Users\user\...xplorerStartupLog.etl, DOS 21->48 dropped 50 C:\Users\user\...\CrashpadMetrics-active.pma, DOS 21->50 dropped 52 C:\Users\user\AppData\...\USSres00002.jrs, DOS 21->52 dropped 54 166 other files (158 malicious) 21->54 dropped 78 Tries to harvest and steal browser information (history, passwords, etc) 21->78 80 Infects executable files (exe, dll, sys, html) 21->80 82 Modifies existing user documents (likely ransomware behavior) 21->82 28 updatewin1.exe 2 21->28         started        31 updatewin2.exe 21->31         started        file9 signatures10 process11 file12 90 Antivirus detection for dropped file 28->90 92 Multi AV Scanner detection for dropped file 28->92 94 Detected unpacking (overwrites its own PE header) 28->94 102 2 other signatures 28->102 34 updatewin1.exe 28->34         started        60 C:\Windows\System32\drivers\etc\hosts, ASCII 31->60 dropped 96 Mutes Antivirus updates and installments via hosts file black listing 31->96 98 Machine Learning detection for dropped file 31->98 100 Modifies the hosts file 31->100 signatures13 process14 file15 46 C:\Users\user\AppData\Local\script.ps1, ASCII 34->46 dropped 76 Suspicious powershell command line found 34->76 38 powershell.exe 34->38         started        40 powershell.exe 34->40         started        signatures16 process17 process18 42 conhost.exe 38->42         started        44 conhost.exe 40->44         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02/
Threat name:
Win32.Trojan.Azorult
Create hunting rule
Status:
Malicious
First seen:
2021-05-03 00:42:56 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=psn4nkdyw3ftkw5suxdqc4fkjcy6r43j3vso4r67hle6vhrbhmba._file
Verdict:
malicious
Similar samples:
0e55e17532909ad5ad34eb4e35d791b27c6951dd15a8baba34c29ae572c884d0
Stop
20ebe8ff1da6f2023a43b3e3cbe14479961699f9dec0324f72070fa2b275eaae
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2ae59af40109d186eb8999211e8ad933d2fffec609a2bdbd87a8aa4e9654a111
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5fba5879d38cea0fd0f956b583c7b5ecd0105928d26315935d4f7a8f9797d885
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7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
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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
+ 42 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/210503-6dlkjpvy12/
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
Disables Task Manager via registry modification
Downloads MZ/PE file
Drops file in Drivers directory
Executes dropped EXE
Deletes Windows Defender Definitions
Djvu Ransomware
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/8cc5a5e3-1b59-441e-be43-a636055fedf3/
Parent samples :
7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
1da3193c52b5ec3a14b36acbc9c92266a2a531399e33c1e3a209e828eda7a0a5
7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02
9ded335a6f346de4aafbc4f8c08e90dce1f064820b13d6580f01731c9837d7a8
a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3
c14987c4c6fc2de2cac43355964465d7611652e29f699d64fa292399f526c103
e833b7fc4bf14527edb120ee4e691a660b21f93b1ec22bf15881bdcee4c5bb8d
712e9e9e2976782e38288d45a2d177f1dc3757c7610b4b9bae9e35be9f20b913
SH256 hash:
7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02
MD5 hash:
b7673d71b6b55cc5591ad7e3826c663c
SHA1 hash:
786c8a03821285196f1da6573ddce268cc3fa89b
Link:
https://www.unpac.me/results/8cc5a5e3-1b59-441e-be43-a636055fedf3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02

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/148048/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-03 02:10:01 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0003.002] Communication Micro-objective::Connect Pipe::Interprocess Communication
1) [C0003.001] Communication Micro-objective::Create Pipe::Interprocess Communication
2) [C0003.003] Communication Micro-objective::Read Pipe::Interprocess Communication
3) [C0003.004] Communication Micro-objective::Write Pipe::Interprocess Communication
4) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
5) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
6) [C0047] File System Micro-objective::Delete File
7) [C0049] File System Micro-objective::Get File Attributes
8) [C0051] File System Micro-objective::Read File
9) [C0052] File System Micro-objective::Writes File
10) [C0007] Memory Micro-objective::Allocate Memory
11) [C0033] Operating System Micro-objective::Console
12) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
13) [C0040] Process Micro-objective::Allocate Thread Local Storage
14) [C0043] Process Micro-objective::Check Mutex
15) [C0042] Process Micro-objective::Create Mutex
16) [C0041] Process Micro-objective::Set Thread Local Storage Value
17) [C0018] Process Micro-objective::Terminate Process