MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8787c38783b46ea1e390f21f6256f79bb653d1660c3631333cb26e5ddd09099e. 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: 15


Intelligence 15 IOCs 1 YARA 6 File information Comments

SHA256 hash: 8787c38783b46ea1e390f21f6256f79bb653d1660c3631333cb26e5ddd09099e
SHA3-384 hash: b96a56cfc311aa07ea6ce3150d773fbac5b81e1aab14bb1bdcacdd5265762f9e5b770c9194be12d3a4b898592d9af736
SHA1 hash: b68e292f466ae5293f714609f01e8f8155d7c967
MD5 hash: c9c4c46a04f011db3cfc0156a9d14924
humanhash: romeo-single-jig-zebra
File name:c9c4c46a04f011db3cfc0156a9d14924.exe
Download: download sample
Signature Stop
File size:733'184 bytes
First seen:2022-08-18 03:00:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f03c917c6bbf10fd1de261e899998ef8 (2 x Stop)
ssdeep 12288:wXQ35niqiw/YEyGdqmDs8i1GOqZ0IXydUc4jSTNUw+C1VpGR1iU+gVI9W4VCRLfS:PRiqz/YGIRG5ZNeMjkUw+C7pGR1sEj4j
TLSH T197F41231BAE1C432D0E106B40834CEE205BF7C5559749A8773D8375EBEB22816AAD76F
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 38b078cccacccc53 (62 x Smoke Loader, 25 x Stop, 21 x RedLineStealer)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://135.181.96.153/

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://135.181.96.153/ https://threatfox.abuse.ch/ioc/843843/

Intelligence


File Origin
# of uploads :
1
# of downloads :
300
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c9c4c46a04f011db3cfc0156a9d14924.exe
Verdict:
Malicious activity
Analysis date:
2022-08-18 03:05:48 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
Sending an HTTP GET request
Сreating synchronization primitives
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Query of malicious DNS domain
Sending a TCP request to an infection source
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
MalwareBazaar
SystemUptime
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
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:
Djvu, PlayCrypt, Vidar
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (creates a PE file in dynamic memory)
Found many strings related to Crypto-Wallets (likely being stolen)
Found ransom note / readme
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected PlayCrypt Ransomware
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 686031 Sample: xapcmRIAlA.exe Startdate: 18/08/2022 Architecture: WINDOWS Score: 100 75 Snort IDS alert for network traffic 2->75 77 Multi AV Scanner detection for domain / URL 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 11 other signatures 2->81 10 xapcmRIAlA.exe 2->10         started        13 xapcmRIAlA.exe 2->13         started        15 xapcmRIAlA.exe 2->15         started        17 xapcmRIAlA.exe 2->17         started        process3 signatures4 95 Writes many files with high entropy 10->95 97 Injects a PE file into a foreign processes 10->97 19 xapcmRIAlA.exe 1 18 10->19         started        23 xapcmRIAlA.exe 13 13->23         started        26 xapcmRIAlA.exe 13 15->26         started        28 xapcmRIAlA.exe 17->28         started        process5 dnsIp6 61 api.2ip.ua 162.0.217.254, 443, 49709, 49714 ACPCA Canada 19->61 47 C:\Users\...\xapcmRIAlA.exe:Zone.Identifier, ASCII 19->47 dropped 49 C:\Users\user\AppData\...\xapcmRIAlA.exe, MS-DOS 19->49 dropped 30 xapcmRIAlA.exe 19->30         started        33 icacls.exe 19->33         started        51 C:\Users\user\Desktop\...\LHEPQPGEWF.png, data 23->51 dropped 85 Modifies existing user documents (likely ransomware behavior) 23->85 63 192.168.2.1 unknown unknown 26->63 file7 signatures8 process9 signatures10 105 Injects a PE file into a foreign processes 30->105 35 xapcmRIAlA.exe 1 23 30->35         started        process11 dnsIp12 65 acacaca.org 175.126.109.15, 49715, 49718, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 35->65 67 rgyui.top 109.102.255.230, 49716, 80 RTDBucharestRomaniaRO Romania 35->67 69 api.2ip.ua 35->69 53 C:\Users\user\AppData\Local\...\build2.exe, PE32 35->53 dropped 55 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 35->55 dropped 57 C:\_readme.txt, ASCII 35->57 dropped 59 41 other files (37 malicious) 35->59 dropped 83 Modifies existing user documents (likely ransomware behavior) 35->83 40 build2.exe 35->40         started        file13 signatures14 process15 signatures16 87 Multi AV Scanner detection for dropped file 40->87 89 Detected unpacking (creates a PE file in dynamic memory) 40->89 91 Machine Learning detection for dropped file 40->91 93 Injects a PE file into a foreign processes 40->93 43 build2.exe 40->43         started        process17 dnsIp18 71 t.me 149.154.167.99, 443, 49724 TELEGRAMRU United Kingdom 43->71 73 135.181.96.153, 49725, 80 HETZNER-ASDE Germany 43->73 99 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 43->99 101 Tries to harvest and steal browser information (history, passwords, etc) 43->101 103 Tries to steal Crypto Currency Wallets 43->103 signatures19
Threat name:
Win32.Ransomware.Stop
Status:
Malicious
First seen:
2022-08-15 23:36:40 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware spyware stealer
Behaviour
Checks processor information in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
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
Checks computer location settings
Loads dropped DLL
Modifies file permissions
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://acacaca.org/fhsgtsspen6/get.php
Unpacked files
SH256 hash:
23bb733d92eb0db62bf45486c8ede9f794282233f228fc9f0d30c8d58e8fe91b
MD5 hash:
55e6668c9a8afd326641d1fb2ee0f571
SHA1 hash:
8688db1dc3ba2426c5ebaa0ee64e7e05320ca576
Detections:
win_stop_auto
SH256 hash:
8787c38783b46ea1e390f21f6256f79bb653d1660c3631333cb26e5ddd09099e
MD5 hash:
c9c4c46a04f011db3cfc0156a9d14924
SHA1 hash:
b68e292f466ae5293f714609f01e8f8155d7c967
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:pdb_YARAify
Author:@wowabiy314
Description:PDB
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
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_stop_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:win_vidar_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.vidar.

File information


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

Comments