MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb8f8ae7e59b790be9d1f5471a54742917d54699952dcb8d5f3d3e2e8d3c8e12. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments

SHA256 hash: cb8f8ae7e59b790be9d1f5471a54742917d54699952dcb8d5f3d3e2e8d3c8e12
SHA3-384 hash: aa97c3fb978bf536d5e1b5f4293f08667864b2fb494be50d6253dad2b717a188a78823e2b456def5ee7c8ac1375ae772
SHA1 hash: f913bcf45c00212ee7a52cd01d55fd43ffca802b
MD5 hash: 1a50136e5f6948d64cce40cba8fc0d88
humanhash: charlie-network-twenty-hotel
File name:97B4.bin.exe
Download: download sample
Signature Stop
File size:846'336 bytes
First seen:2023-07-18 15:30:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2a3a93b2b6b38765ba5a38d019695eff (1 x RedLineStealer, 1 x LaplasClipper, 1 x RecordBreaker)
ssdeep 12288:FTGKA+B/awZMt/DPjCX5i9q1OVhVESyo3y7y1YPDVLdvM:lNRy/DjC6hPPaEY7VLdk
Threatray 8 similar samples on MalwareBazaar
TLSH T16505E10393E1BD40F9168B729E1FC6E8B65EF6508F5E7BBD22189A1F18B1172C163712
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0210140824404000 (1 x Stop)
Reporter GUGULIMAGULI
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
307
Origin country :
NO NO
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
97B4.exe
Verdict:
Malicious activity
Analysis date:
2023-03-15 05:54:28 UTC
Tags:
ransomware stop loader stealer

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
Restart of the analyzed sample
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
Sending a custom TCP request
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware masquerade 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:
Clipboard Hijacker, Djvu
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Clipboard Hijacker
Yara detected Djvu Ransomware
Yara detected ZipBomb
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1275265 Sample: 97B4.bin.exe Startdate: 18/07/2023 Architecture: WINDOWS Score: 100 78 Snort IDS alert for network traffic 2->78 80 Multi AV Scanner detection for domain / URL 2->80 82 Found malware configuration 2->82 84 10 other signatures 2->84 11 97B4.bin.exe 2->11         started        14 97B4.bin.exe 2->14         started        16 97B4.bin.exe 2->16         started        18 2 other processes 2->18 process3 signatures4 88 Detected unpacking (changes PE section rights) 11->88 90 Detected unpacking (overwrites its own PE header) 11->90 92 Writes a notice file (html or txt) to demand a ransom 11->92 94 Writes many files with high entropy 11->94 20 97B4.bin.exe 1 17 11->20         started        96 Antivirus detection for dropped file 14->96 98 Multi AV Scanner detection for dropped file 14->98 100 Machine Learning detection for dropped file 14->100 24 97B4.bin.exe 13 14->24         started        102 Injects a PE file into a foreign processes 16->102 26 97B4.bin.exe 16->26         started        28 97B4.bin.exe 18->28         started        30 schtasks.exe 18->30         started        process5 dnsIp6 66 api.2ip.ua 162.0.217.254, 443, 49709, 49710 ACPCA Canada 20->66 52 C:\Users\user\AppData\Local\...\97B4.bin.exe, PE32 20->52 dropped 54 C:\Users\...\97B4.bin.exe:Zone.Identifier, ASCII 20->54 dropped 32 97B4.bin.exe 20->32         started        35 icacls.exe 20->35         started        68 192.168.2.1 unknown unknown 24->68 37 conhost.exe 30->37         started        file7 process8 signatures9 76 Injects a PE file into a foreign processes 32->76 39 97B4.bin.exe 1 23 32->39         started        process10 dnsIp11 70 zexeq.com 62.217.232.10, 49711, 49712, 80 ASN-ORANGE-ROMANIARO Romania 39->70 72 uaery.top 39->72 74 api.2ip.ua 39->74 56 C:\Users\user\...\UPPS.bin.qapo (copy), PDP-11 39->56 dropped 58 C:\Users\user\AppData\Local\...\UPPS.bin, PDP-11 39->58 dropped 60 C:\Users\user\AppData\Local\...\build3[1].exe, PE32 39->60 dropped 62 286 other malicious files 39->62 dropped 86 Modifies existing user documents (likely ransomware behavior) 39->86 44 build3.exe 1 39->44         started        file12 signatures13 process14 file15 64 C:\Users\user\AppData\Roaming\...\mstsca.exe, PE32 44->64 dropped 104 Uses schtasks.exe or at.exe to add and modify task schedules 44->104 48 schtasks.exe 44->48         started        signatures16 process17 process18 50 conhost.exe 48->50         started       
Threat name:
Win32.Trojan.MintZard
Status:
Malicious
First seen:
2023-03-14 02:43:09 UTC
File Type:
PE (Exe)
Extracted files:
70
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Downloads MZ/PE file
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://zexeq.com/test2/get.php
Unpacked files
SH256 hash:
cb8f8ae7e59b790be9d1f5471a54742917d54699952dcb8d5f3d3e2e8d3c8e12
MD5 hash:
1a50136e5f6948d64cce40cba8fc0d88
SHA1 hash:
f913bcf45c00212ee7a52cd01d55fd43ffca802b
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 (Nextron Systems)
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:Windows_Ransomware_Stop_1e8d48ff
Author:Elastic Security
Rule name:win_stop_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.

File information


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

Web download

Stop

Executable exe cb8f8ae7e59b790be9d1f5471a54742917d54699952dcb8d5f3d3e2e8d3c8e12

(this sample)

  
Delivery method
Distributed via web download

Comments