MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b0aff7c4d4daff96e9d30b8d7cb2baa91768b9c4036fe19213a533b0d8819e3c. 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: b0aff7c4d4daff96e9d30b8d7cb2baa91768b9c4036fe19213a533b0d8819e3c
SHA3-384 hash: d9f374630885672caaf4acb7f38cf5bec7269b4d568c95eab72a32d0ffd241ab84ed84c8c30c5c0133d2f498d20a0172
SHA1 hash: d699a17c26fdb14311dc202d921071d1fdb6c515
MD5 hash: d9b0962526476cdc0d6cacb43f6e33d0
humanhash: football-idaho-butter-solar
File name:d9b0962526476cdc0d6cacb43f6e33d0.exe
Download: download sample
Signature Stop
File size:798'720 bytes
First seen:2022-08-23 01:35:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ae529f2c89efd379802a7d3651c13f59 (2 x Stop)
ssdeep 12288:nscmci2wMcj4r89cWC9Seu3gUi3rocTvhWHgIPSo3Fl0L/mNx3Dl:saiacBkrZTrN7hWA4Dg2x3Z
Threatray 1'662 similar samples on MalwareBazaar
TLSH T154050100AE90C039E5B356F49A7A936CB53E7AD15B6050CF52D56AFE1A386E4FC3031B
TrID 40.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.0% (.SCR) Windows screen saver (13101/52/3)
13.6% (.EXE) Win64 Executable (generic) (10523/12/4)
8.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 2dac1378319b9b91 (29 x Smoke Loader, 23 x RedLineStealer, 22 x Amadey)
Reporter abuse_ch
Tags:exe Stop


Avatar
abuse_ch
Stop C2:
http://135.181.104.248/

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://135.181.104.248/ https://threatfox.abuse.ch/ioc/844709/

Intelligence


File Origin
# of uploads :
1
# of downloads :
315
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d9b0962526476cdc0d6cacb43f6e33d0.exe
Verdict:
Malicious activity
Analysis date:
2022-08-23 01:38:10 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
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
CPUID_Instruction
CheckCmdLine
EvasionQueryPerformanceCounter
EvasionGetTickCount
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed smoke
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.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Detected unpacking (creates a PE file in dynamic memory)
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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 688480 Sample: 7zJEFojp00.exe Startdate: 23/08/2022 Architecture: WINDOWS Score: 100 72 Snort IDS alert for network traffic 2->72 74 Multi AV Scanner detection for domain / URL 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 8 other signatures 2->78 10 7zJEFojp00.exe 2->10         started        13 7zJEFojp00.exe 2->13         started        15 7zJEFojp00.exe 2->15         started        17 7zJEFojp00.exe 2->17         started        process3 signatures4 90 Contains functionality to inject code into remote processes 10->90 92 Writes many files with high entropy 10->92 94 Injects a PE file into a foreign processes 10->94 19 7zJEFojp00.exe 1 18 10->19         started        23 7zJEFojp00.exe 13 13->23         started        25 7zJEFojp00.exe 13 15->25         started        27 7zJEFojp00.exe 17->27         started        process5 dnsIp6 64 api.2ip.ua 162.0.217.254, 443, 49728, 49729 ACPCA Canada 19->64 54 C:\Users\...\7zJEFojp00.exe:Zone.Identifier, ASCII 19->54 dropped 56 C:\Users\user\AppData\...\7zJEFojp00.exe, MS-DOS 19->56 dropped 29 7zJEFojp00.exe 19->29         started        32 icacls.exe 19->32         started        file7 process8 signatures9 102 Injects a PE file into a foreign processes 29->102 34 7zJEFojp00.exe 1 23 29->34         started        process10 dnsIp11 58 rgyui.top 187.212.198.248, 49731, 80 UninetSAdeCVMX Mexico 34->58 60 acacaca.org 115.88.24.203, 49730, 49735, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 34->60 62 api.2ip.ua 34->62 46 C:\Users\user\AppData\Local\...\build2.exe, PE32 34->46 dropped 48 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 34->48 dropped 50 C:\_readme.txt, ASCII 34->50 dropped 52 24 other files (20 malicious) 34->52 dropped 80 Modifies existing user documents (likely ransomware behavior) 34->80 39 build2.exe 34->39         started        file12 signatures13 process14 signatures15 82 Multi AV Scanner detection for dropped file 39->82 84 Detected unpacking (creates a PE file in dynamic memory) 39->84 86 Machine Learning detection for dropped file 39->86 88 Injects a PE file into a foreign processes 39->88 42 build2.exe 39->42         started        process16 dnsIp17 66 t.me 149.154.167.99, 443, 49738 TELEGRAMRU United Kingdom 42->66 68 135.181.104.248, 49740, 80 HETZNER-ASDE Germany 42->68 70 192.168.2.1 unknown unknown 42->70 96 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 42->96 98 Tries to harvest and steal browser information (history, passwords, etc) 42->98 100 Tries to steal Crypto Currency Wallets 42->100 signatures18
Threat name:
Win32.Ransomware.Stop
Status:
Malicious
First seen:
2022-08-23 01:36:09 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
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:
b0aff7c4d4daff96e9d30b8d7cb2baa91768b9c4036fe19213a533b0d8819e3c
MD5 hash:
d9b0962526476cdc0d6cacb43f6e33d0
SHA1 hash:
d699a17c26fdb14311dc202d921071d1fdb6c515
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.

Web download

Stop

Executable exe b0aff7c4d4daff96e9d30b8d7cb2baa91768b9c4036fe19213a533b0d8819e3c

(this sample)

  
Delivery method
Distributed via web download

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