MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f90abf9c9f9a4f6d1023d208bee7a429a738c290b2e67b59b47481e06a3b840. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 5f90abf9c9f9a4f6d1023d208bee7a429a738c290b2e67b59b47481e06a3b840
SHA3-384 hash: 83b25f6ec83374eb741bec2e72d28661c16fa53a7c04a4bce52208100d2792b634f21e6789388e7f80bed99435ce47d4
SHA1 hash: 72238bfd5f8ad8e4afe1924851c236a52ac9be88
MD5 hash: cb7ffb456b7c7bb1d0f68d44bab71eb6
humanhash: zulu-moon-robin-sweet
File name:cb7ffb456b7c7bb1d0f68d44bab71eb6.exe
Download: download sample
Signature Stop
File size:854'016 bytes
First seen:2021-06-14 08:19:35 UTC
Last seen:2021-06-14 08:48:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 76567453f097005b8c49393a915ef4ba (2 x Stop, 1 x RaccoonStealer)
ssdeep 24576:epijLdo0+YA6U0UBFTZqFneMhqH3Lcyu:eX0+YA62gFDh4c
TLSH F5050100A790C0F5F1B653F869B6DE79A5BA3AB05B6490CF62C61BDE5634AD0EC30317
Reporter abuse_ch
Tags:exe Stop

Intelligence


File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cb7ffb456b7c7bb1d0f68d44bab71eb6.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-14 08:26:00 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
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
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
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
Detected unpacking (overwrites its own PE header)
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: 434070 Sample: MoDLWYDM3Z.exe Startdate: 14/06/2021 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 MoDLWYDM3Z.exe 2->8         started        11 MoDLWYDM3Z.exe 2->11         started        13 MoDLWYDM3Z.exe 2->13         started        15 MoDLWYDM3Z.exe 2->15         started        process3 signatures4 66 Multi AV Scanner detection for dropped file 8->66 68 Detected unpacking (overwrites its own PE header) 8->68 70 Machine Learning detection for dropped file 8->70 17 MoDLWYDM3Z.exe 1 17 8->17         started        72 Contains functionality to inject code into remote processes 11->72 74 Injects a PE file into a foreign processes 11->74 22 MoDLWYDM3Z.exe 1 16 11->22         started        24 MoDLWYDM3Z.exe 12 13->24         started        26 MoDLWYDM3Z.exe 12 15->26         started        process5 dnsIp6 48 asvb.top 35.236.78.72, 49722, 49727, 49728 GOOGLEUS United States 17->48 50 192.168.2.1 unknown unknown 17->50 36 C:\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\Desktop\...38EBFQQYWPS.mp3, data 17->38 dropped 40 C:\Users\user\Desktop\SQRKHNBNYN.docx, data 17->40 dropped 46 5 other files (2 malicious) 17->46 dropped 64 Modifies existing user documents (likely ransomware behavior) 17->64 52 api.2ip.ua 77.123.139.190, 443, 49703, 49708 VOLIA-ASUA Ukraine 22->52 42 C:\Users\user\AppData\...\MoDLWYDM3Z.exe, PE32 22->42 dropped 44 C:\Users\...\MoDLWYDM3Z.exe:Zone.Identifier, ASCII 22->44 dropped 28 MoDLWYDM3Z.exe 22->28         started        31 icacls.exe 22->31         started        file7 signatures8 process9 signatures10 76 Injects a PE file into a foreign processes 28->76 33 MoDLWYDM3Z.exe 12 28->33         started        process11 dnsIp12 54 api.2ip.ua 33->54
Threat name:
Win32.Trojan.Caynamer
Status:
Malicious
First seen:
2021-06-14 01:49:00 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery persistence
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Modifies file permissions
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 5f90abf9c9f9a4f6d1023d208bee7a429a738c290b2e67b59b47481e06a3b840

(this sample)

  
Delivery method
Distributed via web download

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