MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8894c4280a1c86b78cdf814b2c11a8598f3b9b65271440862f72c9aaf6360d3e. 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 YARA 10 File information Comments

SHA256 hash: 8894c4280a1c86b78cdf814b2c11a8598f3b9b65271440862f72c9aaf6360d3e
SHA3-384 hash: 96b8772fb1eebc385c9c3148f13a6e47e25051b094bc6fea7e0cf9afa9dbf3e856818dcadd98fd25de2a8c9556184828
SHA1 hash: 5c82fa63eb68fee03b140c864511c67eddf94bf0
MD5 hash: 7f2bc8c7ffb87474ac40bd2b9caac8d7
humanhash: sweet-golf-salami-sodium
File name:8894c4280a1c86b78cdf814b2c11a8598f3b9b65271440862f72c9aaf6360d3e
Download: download sample
Signature Stop
File size:792'576 bytes
First seen:2022-03-29 04:45:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 927193c1aee812dc8814168f6e0fb41b (2 x Stop)
ssdeep 12288:80zI4V0lSjIsSVQGd5EFoA0/CeJatc++EsoSMFy7rWmH5E+N3CodguDKIob:t/ET7co/CAeclFFSqxysg7z
Threatray 1'026 similar samples on MalwareBazaar
TLSH T1B6F40201B7A0C035E1B712F4487AD3A9B92E79B16B2494CB26D56BDF1638AE4FD30317
File icon (PE):PE icon
dhash icon b2dacabecee6baa6 (148 x RedLineStealer, 145 x Stop, 100 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Enabling autorun by creating a file
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
MalwareBazaar
MeasuringTime
SystemUptime
EvasionGetTickCount
CheckCmdLine
EvasionQueryPerformanceCounter
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:
Detection:
malicious
Classification:
rans.spre.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Contains functionality to inject code into remote processes
Found ransom note / readme
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
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 submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Writes many files with high entropy
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 598821 Sample: A7yWqtBNmY Startdate: 29/03/2022 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Multi AV Scanner detection for domain / URL 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 5 other signatures 2->63 8 A7yWqtBNmY.exe 2->8         started        11 A7yWqtBNmY.exe 2->11         started        13 A7yWqtBNmY.exe 2->13         started        15 A7yWqtBNmY.exe 2->15         started        process3 signatures4 69 Contains functionality to inject code into remote processes 8->69 71 Writes many files with high entropy 8->71 73 Injects a PE file into a foreign processes 8->73 17 A7yWqtBNmY.exe 1 18 8->17         started        21 A7yWqtBNmY.exe 12 11->21         started        23 A7yWqtBNmY.exe 12 13->23         started        25 A7yWqtBNmY.exe 15->25         started        process5 dnsIp6 55 api.2ip.ua 162.0.218.244, 443, 49779, 49780 ACPCA Canada 17->55 45 C:\Users\...\A7yWqtBNmY.exe:Zone.Identifier, ASCII 17->45 dropped 47 C:\Users\user\AppData\...\A7yWqtBNmY.exe, MS-DOS 17->47 dropped 27 A7yWqtBNmY.exe 17->27         started        30 icacls.exe 17->30         started        file7 process8 signatures9 75 Injects a PE file into a foreign processes 27->75 32 A7yWqtBNmY.exe 1 20 27->32         started        process10 dnsIp11 49 fuyt.org 183.78.205.92, 49781, 49786, 80 YOUNGDOONG-AS-KRLGHelloVisionCorpKR Korea Republic of 32->49 51 zerit.top 32->51 53 api.2ip.ua 32->53 37 C:\_readme.txt, ASCII 32->37 dropped 39 C:\Users\user\...\A7yWqtBNmY.exe.kxde (copy), MS-DOS 32->39 dropped 41 C:\Users\...\SmartScreenCache.dat.kxde (copy), data 32->41 dropped 43 30 other files (29 malicious) 32->43 dropped 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.Trojan.Convagent
Status:
Malicious
First seen:
2022-03-25 21:40:58 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
32 of 42 (76.19%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:djvu ransomware
Behaviour
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Detected Djvu ransomware
Djvu Ransomware
Malware Config
C2 Extraction:
http://fuyt.org/fhsgtsspen6/get.php
Unpacked files
SH256 hash:
bead36293b2d4e55e4533c8bebf21acad2d6b2753bdfe6d646dbb8467175c9cf
MD5 hash:
a6a7cc843bef3bfdb7deddde5714b079
SHA1 hash:
26bd02e427a4de78d19b6eb99393b81d47520e25
Detections:
win_stop_auto
SH256 hash:
8894c4280a1c86b78cdf814b2c11a8598f3b9b65271440862f72c9aaf6360d3e
MD5 hash:
7f2bc8c7ffb87474ac40bd2b9caac8d7
SHA1 hash:
5c82fa63eb68fee03b140c864511c67eddf94bf0
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:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Author:ditekSHen
Description:Detects executables containing potential Windows Defender anti-emulation checks
Rule name:MALWARE_Win_STOP
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:MALWARE_Win_Vidar
Author:ditekSHen
Description:Detects Vidar / ArkeiStealer
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:Vidar
Author:kevoreilly
Description:Vidar Payload
Rule name:win_stop_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:XOREngine_Misc_XOR_Func
Author:smiller cc @florian @wesley idea on implementation with yara's built in XOR function
Description:Use with care, https://twitter.com/cyb3rops/status/1237042104406355968

File information


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

Comments