MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a1e038a00535de0be9b3912fc476c774dad4d06308af01f9da24471a61015b2. 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: 5a1e038a00535de0be9b3912fc476c774dad4d06308af01f9da24471a61015b2
SHA3-384 hash: d902425e91af632b2aea7c8911a49c18f7a14d69a0eb2726522fae8628fad4756d0cba143d568c27079ce449842f783c
SHA1 hash: 1a499fdfb863c8ea7693c05129cf9f43e9d867cf
MD5 hash: 028db2c77a823be95b37582966b66bf6
humanhash: cat-pennsylvania-zebra-bulldog
File name:028db2c77a823be95b37582966b66bf6.exe
Download: download sample
Signature Stop
File size:851'968 bytes
First seen:2021-06-08 07:08:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e81b9f97b533b87273485fe586897046 (3 x Stop, 1 x Glupteba)
ssdeep 24576:UunP+XyPIVZYmn4D+8fzW9aTd8KyPDQDQIeVt:UuGZYQo49aTmGfO
Threatray 263 similar samples on MalwareBazaar
TLSH 4305F100BAA0D034F5F312F98AB983ADA53DB9B16B6491CF52D527EE16356E0EC31353
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 :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
028db2c77a823be95b37582966b66bf6.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-08 08:23:24 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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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:
100 / 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 domain / URL
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: 431012 Sample: uMAz76AOWj.exe Startdate: 08/06/2021 Architecture: WINDOWS Score: 100 56 Multi AV Scanner detection for domain / URL 2->56 58 Multi AV Scanner detection for submitted file 2->58 60 Found ransom note / readme 2->60 62 2 other signatures 2->62 8 uMAz76AOWj.exe 2->8         started        11 uMAz76AOWj.exe 2->11         started        13 uMAz76AOWj.exe 2->13         started        15 uMAz76AOWj.exe 2->15         started        process3 signatures4 66 Injects a PE file into a foreign processes 8->66 17 uMAz76AOWj.exe 1 19 8->17         started        68 Multi AV Scanner detection for dropped file 11->68 70 Machine Learning detection for dropped file 11->70 72 Contains functionality to inject code into remote processes 11->72 22 uMAz76AOWj.exe 12 11->22         started        24 uMAz76AOWj.exe 1 16 13->24         started        26 uMAz76AOWj.exe 12 15->26         started        process5 dnsIp6 48 asvb.top 35.236.78.72, 49747, 80 GOOGLEUS United States 17->48 36 C:\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\Desktop\uMAz76AOWj.exe, data 17->38 dropped 40 C:\Users\user\Desktop\...40VWZAPQSQL.pdf, data 17->40 dropped 46 4 other files (2 malicious) 17->46 dropped 64 Modifies existing user documents (likely ransomware behavior) 17->64 50 api.2ip.ua 77.123.139.190, 443, 49737, 49743 VOLIA-ASUA Ukraine 24->50 52 192.168.2.1 unknown unknown 24->52 42 C:\Users\user\AppData\...\uMAz76AOWj.exe, PE32 24->42 dropped 44 C:\Users\...\uMAz76AOWj.exe:Zone.Identifier, ASCII 24->44 dropped 28 uMAz76AOWj.exe 24->28         started        31 icacls.exe 24->31         started        file7 signatures8 process9 signatures10 74 Injects a PE file into a foreign processes 28->74 33 uMAz76AOWj.exe 12 28->33         started        process11 dnsIp12 54 api.2ip.ua 33->54
Threat name:
Win32.Infostealer.Convagent
Status:
Malicious
First seen:
2021-06-03 08:19:00 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
31 of 47 (65.96%)
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
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:
5a1e038a00535de0be9b3912fc476c774dad4d06308af01f9da24471a61015b2
MD5 hash:
028db2c77a823be95b37582966b66bf6
SHA1 hash:
1a499fdfb863c8ea7693c05129cf9f43e9d867cf
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 5a1e038a00535de0be9b3912fc476c774dad4d06308af01f9da24471a61015b2

(this sample)

  
Delivery method
Distributed via web download

Comments