MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99a2871b0c8f4a1dd546b650dbd0ff44b367cca9fedc51d51cb1f554fcdf83ed. 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: 99a2871b0c8f4a1dd546b650dbd0ff44b367cca9fedc51d51cb1f554fcdf83ed
SHA3-384 hash: fa84398204dcc08e3ca2501707c2fb92aa93c3bdf2e42cdd9e1017ed1f6940397be413c102078ca8f68311b04899f31d
SHA1 hash: 6e87d55e36d56fca27ef1543b04c352583cda56b
MD5 hash: 7829413732977911e46b8a3c7263a605
humanhash: kitten-sierra-blossom-failed
File name:file
Download: download sample
Signature Stop
Create hunting rule
File size:742'912 bytes
First seen:2022-09-09 18:41:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d222372a7f8612f1284f3a88f8d20994 (1 x CoinMiner, 1 x Stop, 1 x NetSupport)
ssdeep 12288:VR3RcufF9RZ9w4FSwWrvPwzIr72i8RJ6+G3TMwuGYxhO1t45p7XiqSCt:3Rcufz7GYFWrvgbcMtGr1t45zt
Threatray 1'733 similar samples on MalwareBazaar
TLSH T1ECF42236BAE0F935C4E240719078DA956577B9236F2545EB3BA4352E8FB03C05B7A30B
TrID 40.3% (.EXE) Win64 Executable (generic) (10523/12/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4505/5/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon c01edecea68c8ccc (154 x RedLineStealer, 98 x Smoke Loader, 36 x Stop)
Reporter andretavare5
Tags:exe Stop


Avatar
andretavare5
Sample downloaded from http://rgyui.top/dl/build.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
404
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-09-09 18:42:13 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d4d6f305-cae2-41ea-8db5-7a5468dbd237

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/309028/
Detection(s):
SecuriteInfo.com.Variant.Jaik.94773.13353.1016.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Creating a process with a hidden window
Creating a file in the system32 subdirectories
Adding an access-denied ACE
Сreating synchronization primitives
Deleting a recently created file
Searching for synchronization primitives
Query of malicious DNS domain
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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/37234/overview
Behaviour
MalwareBazaar
CPUID_Instruction
MeasuringTime
SystemUptime
EvasionGetTickCount
EvasionQueryPerformanceCounter
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/631b88dfe73fb79b7a0502f6/reports/a0a45bca-31e0-436c-b22b-813be3ee10c2/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/677614f8-9f57-4ad6-967e-b75418a6018f
Result
Threat name:
Djvu
Create hunting rule
Detection:
malicious
Classification:
rans.spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067950
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 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
Snort IDS alert for network traffic
Writes many files with high entropy
Yara detected Djvu Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 700482 Sample: file.exe Startdate: 09/09/2022 Architecture: WINDOWS Score: 100 54 t.me 2->54 66 Snort IDS alert for network traffic 2->66 68 Multi AV Scanner detection for domain / URL 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 7 other signatures 2->72 10 file.exe 2->10         started        13 file.exe 2->13         started        15 file.exe 2->15         started        17 file.exe 2->17         started        signatures3 process4 signatures5 82 Contains functionality to inject code into remote processes 10->82 84 Writes many files with high entropy 10->84 86 Injects a PE file into a foreign processes 10->86 19 file.exe 1 16 10->19         started        23 file.exe 12 13->23         started        25 file.exe 12 15->25         started        27 file.exe 17->27         started        process6 dnsIp7 62 api.2ip.ua 162.0.217.254, 443, 49705, 49706 ACPCA Canada 19->62 50 C:\Users\user\...\file.exe:Zone.Identifier, ASCII 19->50 dropped 52 C:\Users\user\AppData\Local\...\file.exe, MS-DOS 19->52 dropped 29 file.exe 19->29         started        32 icacls.exe 19->32         started        64 192.168.2.1 unknown unknown 23->64 file8 process9 signatures10 88 Injects a PE file into a foreign processes 29->88 34 file.exe 1 23 29->34         started        process11 dnsIp12 56 rgyui.top 1.248.122.240, 49707, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 34->56 58 acacaca.org 211.119.84.111, 49708, 49753, 80 LGDACOMLGDACOMCorporationKR Korea Republic of 34->58 60 api.2ip.ua 34->60 42 C:\Users\user\AppData\Local\...\build2.exe, PE32 34->42 dropped 44 C:\Users\user\AppData\Local\...\build2[1].exe, PE32 34->44 dropped 46 C:\_readme.txt, ASCII 34->46 dropped 48 44 other files (41 malicious) 34->48 dropped 74 Infects executable files (exe, dll, sys, html) 34->74 76 Modifies existing user documents (likely ransomware behavior) 34->76 39 build2.exe 34->39         started        file13 signatures14 process15 signatures16 78 Multi AV Scanner detection for dropped file 39->78 80 Machine Learning detection for dropped file 39->80
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99a2871b0c8f4a1dd546b650dbd0ff44b367cca9fedc51d51cb1f554fcdf83ed/
Threat name:
Win32.Trojan.Jaik
Create hunting rule
Status:
Malicious
First seen:
2022-09-09 18:42:08 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgriogymr5fb3vkgwzinxuh7iszwptfj73ofdvi4wh2vj7g7qpwq._file
Verdict:
malicious
Similar samples:
057c0db0601053a63938b908aa39a8e8d064c7cad1939db90d21964d002e58f9
Stop
2bc17ebe903b49885f30864269e50d998ff8fe60a027dbeda54b0600bca35a95
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4d06c8d3c4fdf4deeea0a286fb758e3478de2b4969b7a21da686efe224a8536f
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69c7a76f9ba360e06d4671f90ce06cfc093e4d43db37264041069709e538dea4
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88b518753b964090695996d260e2a46c68b8ef6d92eb75d98af2cb6193987bf6
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e8594d82875103713cf665fdcf18df65009550110bee6835c3087a83c496b9da
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eb04fd8cc7a8426d235b764cd0c999730dd20a5af66f1bbd6d68dd4ba7c2ff69
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f5568dbc0f8640a105c3a7c4243e627fbf8218df12c9f331a38cf11e93f58358
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f926a9e4990913947994d4c217d753f907fbb29d38908e7b80b2fd24ff6f4830
Stop
+ 1'723 additional samples on MalwareBazaar
Result
Malware family:
djvu
Create hunting rule
Score:
  10/10
Tags:
family:djvu discovery persistence ransomware spyware stealer
Link:
https://tria.ge/reports/220909-xcb8zscfck/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Kills process with taskkill
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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/test3/get.php
Unpacked files
SH256 hash:
c972dcecde8738716132919d66940891541fd3a42fcb75b30f3ffa76e40ab17b
MD5 hash:
cda3deaf1e9bbc27041b04d7446bed6c
SHA1 hash:
a437d57c2698bd9606802400985ea254449dd20e
Detections:
win_stop_auto
Create hunting rule
Link:
https://www.unpac.me/results/3f3169ff-3929-48fa-9213-03651c106208/
Parent samples :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 hash:
99a2871b0c8f4a1dd546b650dbd0ff44b367cca9fedc51d51cb1f554fcdf83ed
MD5 hash:
7829413732977911e46b8a3c7263a605
SHA1 hash:
6e87d55e36d56fca27ef1543b04c352583cda56b
Link:
https://www.unpac.me/results/3f3169ff-3929-48fa-9213-03651c106208/
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/99a2871b0c8f4a1dd546b650dbd0ff44b367cca9fedc51d51cb1f554fcdf83ed

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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.

File information

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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by
Cape
Cape
https://www.capesandbox.com/analysis/309028/

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