MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b981a1b3db85e9ae44a79f66ecbced67088bda1089fe799d0bcb8dc7c7882b59. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b981a1b3db85e9ae44a79f66ecbced67088bda1089fe799d0bcb8dc7c7882b59
SHA3-384 hash: befe871928be91cec1b7e93588e7555b2ae5938825866849f56fb90a41f55838a1b64022f7679eb940470cddadc2fbd9
SHA1 hash: 796b9e7035353181fb9e16cdba938e6bc9075172
MD5 hash: 49735352f75799eb133877c00ce9b75e
humanhash: diet-saturn-ten-quiet
File name:b981a1b3db85e9ae44a79f66ecbced67088bda1089fe799d0bcb8dc7c7882b59
Download: download sample
Signature Stop
Create hunting rule
File size:826'368 bytes
First seen:2022-03-25 08:52:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4988f2ae63018c28daaeda2dba44eec2 (4 x Stop, 2 x RedLineStealer)
ssdeep 12288:AgH8tsCSSJL8LklKIa+vacenxFTNXS+Mnj+SVgnGH+H6F0/eXRax78R:boJIsFKnHExniSVgGHJF6F8
Threatray 907 similar samples on MalwareBazaar
TLSH T1F5050240FBA0D03DE5B352F47C7A93A8692D7EA05B6150CB22D636DF56346E0ECB520B
File icon (PE):PE icon
dhash icon b6dacabecee6baa6 (72 x Stop, 68 x RedLineStealer, 55 x Smoke Loader)
Reporter JAMESWT_WT
Tags:exe Stop

Intelligence

File Origin
# of uploads :
1
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Detection:
STOP
Create hunting rule
Link:
https://www.capesandbox.com/analysis/257612/
Detection(s):
Win.Dropper.Generickdz-9939781-0
Create hunting rule

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:
  9/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/11330/overview
Behaviour
MalwareBazaar
CPUID_Instruction
SystemUptime
MeasuringTime
CheckCmdLine
EvasionGetTickCount
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/623d8301a19c6494128c900e/reports/2d154352-d956-49b0-9a54-f68589b23f41/overview
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f0a71c86-2e20-4214-837e-c4ad757827cf
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/964418
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 dropped file
Multi AV Scanner detection for submitted file
Possible FUD Crypter (malicious underground PE packer) detected
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 596901 Sample: kkC4P4Jiwn Startdate: 25/03/2022 Architecture: WINDOWS Score: 100 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for URL or domain 2->60 62 5 other signatures 2->62 8 kkC4P4Jiwn.exe 2->8         started        11 kkC4P4Jiwn.exe 2->11         started        13 kkC4P4Jiwn.exe 2->13         started        15 kkC4P4Jiwn.exe 2->15         started        process3 signatures4 66 Injects a PE file into a foreign processes 8->66 17 kkC4P4Jiwn.exe 18 8->17         started        68 Possible FUD Crypter (malicious underground PE packer) detected 11->68 70 Contains functionality to inject code into remote processes 11->70 22 kkC4P4Jiwn.exe 1 16 11->22         started        72 Multi AV Scanner detection for dropped file 13->72 74 Machine Learning detection for dropped file 13->74 24 kkC4P4Jiwn.exe 12 13->24         started        26 kkC4P4Jiwn.exe 12 15->26         started        process5 dnsIp6 48 fuyt.org 211.119.84.111, 49762, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 17->48 36 C:\Users\user\...\kkC4P4Jiwn.exe.uigd (copy), MS-DOS 17->36 dropped 38 C:\Users\user\Desktop\kkC4P4Jiwn.exe, MS-DOS 17->38 dropped 40 C:\Users\user\Desktop40WCXBPIUYI.jpg, data 17->40 dropped 46 3 other malicious files 17->46 dropped 64 Modifies existing user documents (likely ransomware behavior) 17->64 50 api.2ip.ua 162.0.218.244, 443, 49752, 49753 ACPCA Canada 22->50 42 C:\Users\user\AppData\...\kkC4P4Jiwn.exe, PE32 22->42 dropped 44 C:\Users\...\kkC4P4Jiwn.exe:Zone.Identifier, ASCII 22->44 dropped 28 kkC4P4Jiwn.exe 22->28         started        31 icacls.exe 22->31         started        52 192.168.2.1 unknown unknown 24->52 file7 signatures8 process9 signatures10 76 Injects a PE file into a foreign processes 28->76 33 kkC4P4Jiwn.exe 12 28->33         started        process11 dnsIp12 54 api.2ip.ua 33->54
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b981a1b3db85e9ae44a79f66ecbced67088bda1089fe799d0bcb8dc7c7882b59/
Threat name:
Win32.Ransomware.Stop
Create hunting rule
Status:
Malicious
First seen:
2022-03-18 07:50:00 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
38 of 42 (90.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xga2dm63qxu24rfht5tozphnm4eixwqqrh7hthilzog4pr4ifnmq._file
Verdict:
malicious
Similar samples:
2a06da1f6bb8f01f932093ed9ae5f1ca2ff7b53b89dfd46a0102200cf3ebaead
Stop
30d61c9063fe72a9a6a1519ad4a2c43dc7e88fac46904e6f7227fa789be5dbb6
Stop
45af7d799a8e6cd7b9427908e7bdba67693f63402b0b32316982656bf7d17462
Stop
923d2af76cd47509cd42c94e47b6198321b16c2123b09bb39aa26b8c3daf9647
Stop
b35685146d30d976ea7a856d4f6011e2433d8a40244c320be021d40ed33f0ee0
Stop
fb55add55db0e0f7b9e63dd1d70bdc318b2a0e725e069a00ae8685d60a044e0b
Stop
+ 897 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu ransomware
Link:
https://tria.ge/reports/220325-kten8aabbl/
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:
9b60539b8dff99120d6a96b8ec89300375004fd822f2b5c859a7292f2fafc63b
MD5 hash:
21efd6d352c3ae16ce7d026a366ba929
SHA1 hash:
95e8a7dd52636bb727f64e6ddab718269869a5da
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/77884367-ddb9-4026-a46b-022e035c072e/
Parent samples :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 hash:
b981a1b3db85e9ae44a79f66ecbced67088bda1089fe799d0bcb8dc7c7882b59
MD5 hash:
49735352f75799eb133877c00ce9b75e
SHA1 hash:
796b9e7035353181fb9e16cdba938e6bc9075172
Link:
https://www.unpac.me/results/77884367-ddb9-4026-a46b-022e035c072e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b981a1b3db85e9ae44a79f66ecbced67088bda1089fe799d0bcb8dc7c7882b59

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
Create hunting rule
Author:ditekSHen
Description:Detects STOP ransomware
Rule name:SUSP_XORed_URL_in_EXE
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:win_stop_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stop.
Rule name:XOREngine_Misc_XOR_Func
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/257612/

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