MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1cf923ca8729ef09965b1d808fa93cd9de374cde86c86830f31a05ab39284261. 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 5 File information Comments

SHA256 hash: 1cf923ca8729ef09965b1d808fa93cd9de374cde86c86830f31a05ab39284261
SHA3-384 hash: 79e3ec8c60641f33ef43f99ed12347bfa92ca3d77cbb31c5c7c99db54f5491ede7ffedade0a2d9817b4a3cf9ab0b04f7
SHA1 hash: d5f189656dad95460880825bd713888b17eb35f1
MD5 hash: fa04b614c6cf028566fe6bfe7e5e2890
humanhash: fillet-moon-july-lake
File name:1cf923ca8729ef09965b1d808fa93cd9de374cde86c86830f31a05ab39284261
Download: download sample
Signature Stop
File size:792'576 bytes
First seen:2022-03-29 04:44:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8b43e1344b27321e8381c60a4a19bca2 (6 x Stop, 4 x RedLineStealer, 1 x Ransomare.Stop)
ssdeep 12288:pf04aq8lt6iGJvlBIcDgAU+FJw/6bizAIX+GEZAGZ/ubFHNxZznVTlIJgq/I6B0J:O4atTWXkb/6b3SsAAqtnztymcIfHZR
Threatray 1'013 similar samples on MalwareBazaar
TLSH T100F401007B50D035E5B712F45A7693A8A93EBDB15B7860CB67E16AEB1230AF4EC30357
File icon (PE):PE icon
dhash icon badacabecee6baa6 (95 x Stop, 87 x RedLineStealer, 62 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence


File Origin
# of uploads :
1
# of downloads :
221
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
Searching for synchronization primitives
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
SystemUptime
MeasuringTime
CheckCmdLine
EvasionGetTickCount
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.troj.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
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
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 598846 Sample: h9pCjOd3Nq Startdate: 29/03/2022 Architecture: WINDOWS Score: 100 54 Multi AV Scanner detection for domain / URL 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 6 other signatures 2->60 8 h9pCjOd3Nq.exe 2->8         started        11 h9pCjOd3Nq.exe 2->11         started        13 h9pCjOd3Nq.exe 2->13         started        15 h9pCjOd3Nq.exe 2->15         started        process3 signatures4 64 Multi AV Scanner detection for dropped file 8->64 66 Machine Learning detection for dropped file 8->66 68 Injects a PE file into a foreign processes 8->68 17 h9pCjOd3Nq.exe 18 8->17         started        70 Contains functionality to inject code into remote processes 11->70 22 h9pCjOd3Nq.exe 1 16 11->22         started        24 h9pCjOd3Nq.exe 12 13->24         started        26 h9pCjOd3Nq.exe 12 15->26         started        process5 dnsIp6 48 fuyt.org 118.33.109.122, 49779, 80 KIXS-AS-KRKoreaTelecomKR Korea Republic of 17->48 36 C:\_readme.txt, ASCII 17->36 dropped 38 C:\Users\user\...\h9pCjOd3Nq.exe.kxde (copy), MS-DOS 17->38 dropped 40 C:\Users\user\Desktop\h9pCjOd3Nq.exe, MS-DOS 17->40 dropped 46 3 other malicious files 17->46 dropped 62 Modifies existing user documents (likely ransomware behavior) 17->62 50 api.2ip.ua 162.0.218.244, 443, 49761, 49771 ACPCA Canada 22->50 42 C:\Users\user\AppData\...\h9pCjOd3Nq.exe, PE32 22->42 dropped 44 C:\Users\...\h9pCjOd3Nq.exe:Zone.Identifier, ASCII 22->44 dropped 28 h9pCjOd3Nq.exe 22->28         started        31 icacls.exe 22->31         started        file7 signatures8 process9 signatures10 72 Injects a PE file into a foreign processes 28->72 33 h9pCjOd3Nq.exe 12 28->33         started        process11 dnsIp12 52 api.2ip.ua 33->52
Threat name:
Win32.Trojan.Convagent
Status:
Malicious
First seen:
2022-03-25 21:38:48 UTC
File Type:
PE (Exe)
Extracted files:
18
AV detection:
34 of 42 (80.95%)
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:
1cf923ca8729ef09965b1d808fa93cd9de374cde86c86830f31a05ab39284261
MD5 hash:
fa04b614c6cf028566fe6bfe7e5e2890
SHA1 hash:
d5f189656dad95460880825bd713888b17eb35f1
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
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: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