MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7a2f648caf2fab403fc84e7c5a3f0d89e52e8f3b0c2492a26588f094e5981c9b. 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: 12


Intelligence 12 IOCs 1 YARA 2 File information Comments

SHA256 hash: 7a2f648caf2fab403fc84e7c5a3f0d89e52e8f3b0c2492a26588f094e5981c9b
SHA3-384 hash: fab33d5c6d8af33d2f9ccb437cdd9343a81a5e08de2dd1baead5ddd1112d35e2157eebaed5fb123d11b290c368ff3671
SHA1 hash: 5ab6e880f0cacf77f75dad054aca7d6ba3dff74f
MD5 hash: 9df2a0977fde90af161aaf7a14457c14
humanhash: summer-ceiling-island-kitten
File name:9df2a0977fde90af161aaf7a14457c14.exe
Download: download sample
Signature Stop
File size:892'416 bytes
First seen:2021-06-08 07:08:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7931792d32fb2f9c9af84351699ef4f6 (5 x Stop)
ssdeep 24576:fQdFehA0tyRrGbYqnbAla4EQ8xVf0cqgwn1Mst:fQl0WrGZn0la48jf0cqbn1Ms
Threatray 263 similar samples on MalwareBazaar
TLSH 3915F100B7A0C034F1B216B55A7692BBA539BD617B2491CB12D527EE3236EF0AD30F57
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://185.99.133.218/

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://185.99.133.218/ https://threatfox.abuse.ch/ioc/67932/

Intelligence


File Origin
# of uploads :
1
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9df2a0977fde90af161aaf7a14457c14.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-08 08:08:52 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
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
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
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:
Detection:
malicious
Classification:
rans.evad
Score:
92 / 100
Signature
Contains functionality to inject code into remote processes
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 signatures2 2 Behavior Graph ID: 431005 Sample: o5omRfZGyh.exe Startdate: 08/06/2021 Architecture: WINDOWS Score: 92 60 Multi AV Scanner detection for submitted file 2->60 62 Found ransom note / readme 2->62 64 Yara detected Djvu Ransomware 2->64 66 Machine Learning detection for sample 2->66 8 o5omRfZGyh.exe 2->8         started        11 o5omRfZGyh.exe 2->11         started        13 o5omRfZGyh.exe 2->13         started        15 o5omRfZGyh.exe 2->15         started        process3 signatures4 70 Injects a PE file into a foreign processes 8->70 17 o5omRfZGyh.exe 1 19 8->17         started        72 Contains functionality to inject code into remote processes 11->72 22 o5omRfZGyh.exe 1 16 11->22         started        74 Multi AV Scanner detection for dropped file 13->74 76 Machine Learning detection for dropped file 13->76 24 o5omRfZGyh.exe 12 13->24         started        26 conhost.exe 13->26         started        28 o5omRfZGyh.exe 12 15->28         started        30 backgroundTaskHost.exe 15->30         started        process5 dnsIp6 52 asvb.top 35.236.78.72, 49719, 80 GOOGLEUS United States 17->52 40 C:\_readme.txt, ASCII 17->40 dropped 42 C:\Users\user\Desktop\o5omRfZGyh.exe, data 17->42 dropped 44 C:\Users\user\Desktop\...behaviorgraphIGIYTFFYT.docx, data 17->44 dropped 50 2 other malicious files 17->50 dropped 68 Modifies existing user documents (likely ransomware behavior) 17->68 54 api.2ip.ua 77.123.139.190, 443, 49710, 49711 VOLIA-ASUA Ukraine 22->54 46 C:\Users\user\AppData\...\o5omRfZGyh.exe, PE32 22->46 dropped 48 C:\Users\...\o5omRfZGyh.exe:Zone.Identifier, ASCII 22->48 dropped 32 o5omRfZGyh.exe 22->32         started        35 icacls.exe 22->35         started        file7 signatures8 process9 signatures10 58 Injects a PE file into a foreign processes 32->58 37 o5omRfZGyh.exe 12 32->37         started        process11 dnsIp12 56 api.2ip.ua 37->56
Threat name:
Win32.Trojan.Glupteba
Status:
Malicious
First seen:
2021-06-03 08:01:30 UTC
File Type:
PE (Exe)
Extracted files:
46
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu family:vidar discovery evasion persistence ransomware spyware stealer
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
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
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:
41e56b8b94805135b173db7320c41de1ee40d5ae3916ae6ca5e97bdf3a933daa
MD5 hash:
c7a3e9c8a8d0f7597ce60fb5fdf50eb5
SHA1 hash:
24f034d6535e4027b11f056609129742b8e846e9
Detections:
win_stop_auto
SH256 hash:
7a2f648caf2fab403fc84e7c5a3f0d89e52e8f3b0c2492a26588f094e5981c9b
MD5 hash:
9df2a0977fde90af161aaf7a14457c14
SHA1 hash:
5ab6e880f0cacf77f75dad054aca7d6ba3dff74f
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

File information


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

Web download

Stop

Executable exe 7a2f648caf2fab403fc84e7c5a3f0d89e52e8f3b0c2492a26588f094e5981c9b

(this sample)

  
Delivery method
Distributed via web download

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