MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d56681bb83bd1e54372061cf2e24017106e1fc6a26a86388c907db320e105060. 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 2 File information Comments

SHA256 hash: d56681bb83bd1e54372061cf2e24017106e1fc6a26a86388c907db320e105060
SHA3-384 hash: 8bb5b877c1fa94e4409c0076630bf907bb0757625a2627907b310eaf7daac7a07b59ad0c25684ada6128a4efc376fe8e
SHA1 hash: ee7629f0238a07d5f990dc0e625542fc106d81f8
MD5 hash: 7915c2f4364406d2ed1fb883dc58ed4e
humanhash: yellow-seventeen-berlin-arkansas
File name:7915C2F4364406D2ED1FB883DC58ED4E.exe
Download: download sample
Signature Stop
File size:891'392 bytes
First seen:2021-06-28 23:01:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5387efa108146c925b39d07106b3a7df (1 x ArkeiStealer, 1 x Stop)
ssdeep 12288:082xcwXoQxcEfjeY8SsGXIQq7cxRIqMnTiaYFTvJGQ8gVdlL9hlmQEo:0VxAkj/8qXQ7OqMvIgV/Lz4o
Threatray 313 similar samples on MalwareBazaar
TLSH 4A150100BA91C031F5F315F8993592AC993EBDA15BA450CF12D9EADD63386E2EC31367
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://securebiz.org/raud/get.php

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://securebiz.org/raud/get.php https://threatfox.abuse.ch/ioc/155433/

Intelligence


File Origin
# of uploads :
1
# of downloads :
169
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
1.exe
Verdict:
Malicious activity
Analysis date:
2021-06-26 02:28:22 UTC
Tags:
trojan ransomware stop

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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.
Malware family:
STOP Ransomware
Verdict:
Malicious
Result
Threat name:
Detection:
malicious
Classification:
rans.spre.spyw.evad
Score:
100 / 100
Signature
Contains functionality to inject code into remote processes
Detected unpacking (overwrites its own PE header)
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
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)
Tries to harvest and steal browser information (history, passwords, etc)
Writes many files with high entropy
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 441455 Sample: Tu33yM3ZKj.exe Startdate: 29/06/2021 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->55 57 Multi AV Scanner detection for submitted file 2->57 59 Found ransom note / readme 2->59 61 3 other signatures 2->61 8 Tu33yM3ZKj.exe 2->8         started        11 Tu33yM3ZKj.exe 2->11         started        13 Tu33yM3ZKj.exe 2->13         started        15 Tu33yM3ZKj.exe 2->15         started        process3 signatures4 69 Detected unpacking (overwrites its own PE header) 8->69 71 Contains functionality to inject code into remote processes 8->71 73 Writes many files with high entropy 8->73 17 Tu33yM3ZKj.exe 1 18 8->17         started        75 Injects a PE file into a foreign processes 11->75 21 Tu33yM3ZKj.exe 13 11->21         started        23 Tu33yM3ZKj.exe 13 13->23         started        25 Tu33yM3ZKj.exe 15->25         started        process5 dnsIp6 51 api.2ip.ua 77.123.139.190, 443, 49713, 49719 VOLIA-ASUA Ukraine 17->51 45 C:\Users\...\Tu33yM3ZKj.exe:Zone.Identifier, ASCII 17->45 dropped 27 Tu33yM3ZKj.exe 17->27         started        30 icacls.exe 17->30         started        53 192.168.2.1 unknown unknown 23->53 file7 process8 signatures9 77 Injects a PE file into a foreign processes 27->77 32 Tu33yM3ZKj.exe 1 20 27->32         started        process10 dnsIp11 47 securebiz.org 175.119.10.231, 49722, 49723, 49726 SKB-ASSKBroadbandCoLtdKR Korea Republic of 32->47 49 api.2ip.ua 32->49 37 C:\Users\user\AppData\Roaming\...\MSO1033.acl, COM 32->37 dropped 39 C:\...\PhotosAppTracing_startedInBGMode.etl, DOS 32->39 dropped 41 C:\Users\...\AppCache132694273107531968.txt, DOS 32->41 dropped 43 188 other files (186 malicious) 32->43 dropped 63 Tries to harvest and steal browser information (history, passwords, etc) 32->63 65 Infects executable files (exe, dll, sys, html) 32->65 67 Modifies existing user documents (likely ransomware behavior) 32->67 file12 signatures13
Threat name:
Win32.Ransomware.Stop
Status:
Malicious
First seen:
2021-06-26 01:52:14 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery persistence ransomware
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
Executes dropped EXE
Modifies extensions of user files
Unpacked files
SH256 hash:
a988a86e5c65c5cc8317946882cecc6d7b12af351dfb7cf72db21409037ae422
MD5 hash:
36a38870c4f7ad65fef8f517043ff561
SHA1 hash:
ac7ddaa1ac0886c1f3adb00036c6bb8ac4591ff2
Detections:
win_stop_auto
SH256 hash:
d56681bb83bd1e54372061cf2e24017106e1fc6a26a86388c907db320e105060
MD5 hash:
7915c2f4364406d2ed1fb883dc58ed4e
SHA1 hash:
ee7629f0238a07d5f990dc0e625542fc106d81f8
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.

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