MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1. 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


BruteRatel


Vendor detections: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1
SHA3-384 hash: ab11ad03aff631db8a9145f306b1a6f3ead3fd9594c95b9eb070da199ef5295f37990cf3c9281d8fb36fbce2d107e39e
SHA1 hash: 9542650ef8f936298ef8e1119a0950466a199129
MD5 hash: bb497b0fafafaac119ed213d7ea33e01
humanhash: delaware-freddie-hot-april
File name:vpn.msi
Download: download sample
Signature BruteRatel
Create hunting rule
File size:1'678'848 bytes
First seen:2024-06-23 17:27:06 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 49152:yo13YuW8zBQSc0ZnSKYZKumZr7A8HCJ/:rY90ZniK/A8HC
TLSH T13C75D02273C6C537C96E01303A29D66B5579FCB74B3140DBA3C8292EAEB45C16639F93
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Reporter 1ZRR4H
Tags:BruteRatel msi

Intelligence

File Origin
# of uploads :
1
# of downloads :
131
Origin country :
CL CL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66785b248bee61523c5d1046win7simulatehigh_evasion
Tags:
Generic Network
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CAB fingerprint installer lolbin packed peloader remote shell32
Link:
https://www.filescan.io/uploads/66785b23ea679c2da918ca49/reports/109aab93-8c4d-4774-abfc-5927602901b8/overview
Verdict:
Malicious
Labled as:
Troj/MDrop
Link:
https://www.hybrid-analysis.com/sample/4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Bazar Loader, BruteRatel, Latrodectus
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1461313
Signature
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for domain / URL
Sample uses string decryption to hide its real strings
Sets debug register (to hijack the execution of another thread)
Sigma detected: RunDLL32 Spawning Explorer
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Bazar Loader
Yara detected BruteRatel
Yara detected Latrodectus
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1461313 Sample: vpn.msi Startdate: 23/06/2024 Architecture: WINDOWS Score: 100 54 ultroawest.com 2->54 56 prufkespotr.com 2->56 58 3 other IPs or domains 2->58 64 Multi AV Scanner detection for domain / URL 2->64 66 Found malware configuration 2->66 68 Antivirus detection for URL or domain 2->68 70 7 other signatures 2->70 8 rundll32.exe 1 12 2->8         started        12 msiexec.exe 14 28 2->12         started        15 msiexec.exe 9 2->15         started        signatures3 process4 dnsIp5 60 kurvabbr.pw 103.35.191.31, 49731, 49732, 49740 VECTANTARTERIANetworksCorporationJP Japan 8->60 72 Contains functionality to inject threads in other processes 8->72 74 Injects code into the Windows Explorer (explorer.exe) 8->74 76 Sets debug register (to hijack the execution of another thread) 8->76 80 5 other signatures 8->80 17 explorer.exe 68 2 8->17 injected 32 C:\Windows\Installer\MSI9033.tmp, PE32 12->32 dropped 34 C:\Users\user\AppData\Roaming\aclui.dll, PE32+ 12->34 dropped 36 C:\Windows\Installer\MSI8ED9.tmp, PE32 12->36 dropped 38 C:\Windows\Installer\MSI8E5B.tmp, PE32 12->38 dropped 78 Drops executables to the windows directory (C:\Windows) and starts them 12->78 21 MSI9033.tmp 12->21         started        23 msiexec.exe 12->23         started        25 msiexec.exe 12->25         started        40 C:\Users\user\AppData\Local\...\MSI8D18.tmp, PE32 15->40 dropped 42 C:\Users\user\AppData\Local\...\MSI8CF7.tmp, PE32 15->42 dropped 44 C:\Users\user\AppData\Local\...\MSI8CA8.tmp, PE32 15->44 dropped 46 3 other files (none is malicious) 15->46 dropped file6 signatures7 process8 dnsIp9 48 kalopvard.com 185.93.221.101, 443, 49749, 49750 OBLTEL-ASRU Switzerland 17->48 50 prufkespotr.com 87.121.61.197, 443, 49778, 49779 NET1-ASBG Bulgaria 17->50 52 ultroawest.com 77.83.196.180, 443, 49745, 49746 ASN-MOLMoscowRussiaRU Lithuania 17->52 62 System process connects to network (likely due to code injection or exploit) 17->62 27 rundll32.exe 17->27         started        30 rundll32.exe 12 17->30         started        signatures10 process11 signatures12 82 System process connects to network (likely due to code injection or exploit) 27->82 84 Injects code into the Windows Explorer (explorer.exe) 27->84 86 Writes to foreign memory regions 27->86 88 Injects a PE file into a foreign processes 27->88 90 Allocates memory in foreign processes 30->90 92 Modifies the context of a thread in another process (thread injection) 30->92 94 Creates a thread in another existing process (thread injection) 30->94
Score:
92%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1/
Threat name:
Win64.Spyware.Latrodectus
Create hunting rule
Status:
Malicious
First seen:
2024-06-21 19:01:57 UTC
File Type:
Binary (Archive)
Extracted files:
37
AV detection:
12 of 24 (50.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iwdckdn7rs7fpftc2nes3uz74czusmzd2sqgbigtshza5szivpyq._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence privilege_escalation
Link:
https://tria.ge/reports/240623-v1zm3sxhja/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Enumerates connected drives
Blocklisted process makes network request
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/4586250dbf8cbe579662d3492dd33fe0b3493323d4a060a0d391f20ecb28abf1

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:suspicious_msi_file
Create hunting rule
Author:Johnk3r
Description:Detects common strings, DLL and API in Banker_BR

File information

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

Comments