MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f543f0537d8f9484ab6ec918d88e0a7a4fde9cf4caeda7aafc44ce7672df434b. 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


Threat unknown


Vendor detections: 7


Intelligence 7 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f543f0537d8f9484ab6ec918d88e0a7a4fde9cf4caeda7aafc44ce7672df434b
SHA3-384 hash: b8c1fc6078e1416bb5c8b9884c7d829acf6f362766710714e0881ea3dcb2916eaad83a64e43a0c695e65ffd6b282db8d
SHA1 hash: 5617db62531392de706d8ac009467af272f11496
MD5 hash: 778f99c457b76806d6c372b14a544019
humanhash: winter-delta-stairway-orange
File name:UMKA-WCD-.msi
Download: download sample
File size:43'759'104 bytes
First seen:2023-10-27 23:03:54 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:lVnWML32lc/0B93CEt99+BNmduIBbRhFogSN4WRAvx7XfCR:7WMLe33CEt99+BNmduIBbRhFogWV8pk
Threatray 1 similar samples on MalwareBazaar
TLSH T17BA7D021B282C037F47A36B4852AA9D9C9A8BE15073148D777D53EDE8B739C22F35607
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 FXOLabs
Tags:msi

Intelligence

File Origin
# of uploads :
1
# of downloads :
156
Origin country :
BR BR
Vendor Threat Intelligence
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin packed remote shell32
Link:
https://www.filescan.io/uploads/653c41e372356e4f29e8340a/reports/7139359a-9907-40c9-a97a-3b675cd433a3/overview
Verdict:
Suspicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f543f0537d8f9484ab6ec918d88e0a7a4fde9cf4caeda7aafc44ce7672df434b
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/f543f0537d8f9484ab6ec918d88e0a7a4fde9cf4caeda7aafc44ce7672df434b
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1333566
Signature
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Contains functionality to modify clipboard data
Found API chain indicative of sandbox detection
Malicious sample detected (through community Yara rule)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1333566 Sample: UMKA-WCD-.msi Startdate: 28/10/2023 Architecture: WINDOWS Score: 68 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for URL or domain 2->71 11 msiexec.exe 16 45 2->11         started        14 msiexec.exe 2 2->14         started        process3 file4 59 C:\ProgramDatabehaviorgraphbPlugin\Rbv2rx.exe, PE32 11->59 dropped 61 C:\Windows\Installer\MSICD6.tmp, PE32 11->61 dropped 63 C:\Windows\Installer\MSIC97.tmp, PE32 11->63 dropped 65 6 other files (none is malicious) 11->65 dropped 16 msiexec.exe 9 11->16         started        process5 file6 55 C:\Users\user\AppData\Local\...\scr12BF.ps1, Unicode 16->55 dropped 57 C:\Users\user\AppData\Local\...\pss12D1.ps1, Unicode 16->57 dropped 67 Bypasses PowerShell execution policy 16->67 20 powershell.exe 18 16->20         started        signatures7 process8 process9 22 Rbv2rx.exe 3 20->22         started        25 conhost.exe 20->25         started        signatures10 73 Found API chain indicative of sandbox detection 22->73 75 Contains functionality to modify clipboard data 22->75 27 tasklist.exe 1 22->27         started        29 cmd.exe 1 22->29         started        31 cmd.exe 1 22->31         started        33 5 other processes 22->33 process11 process12 35 conhost.exe 27->35         started        37 WMIC.exe 1 29->37         started        39 conhost.exe 29->39         started        41 WMIC.exe 1 31->41         started        43 conhost.exe 31->43         started        45 conhost.exe 33->45         started        47 conhost.exe 33->47         started        49 conhost.exe 33->49         started        51 2 other processes 33->51 process13 53 conhost.exe 35->53         started       
Score:
1%
Verdict:
Benign
File Type:
MSI
Link:
https://malprob.io/report/f543f0537d8f9484ab6ec918d88e0a7a4fde9cf4caeda7aafc44ce7672df434b
Gathering data
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-10-27 21:37:27 UTC
File Type:
Binary (Archive)
Extracted files:
142
AV detection:
3 of 24 (12.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6vb7au35r6kijk3ozemnrdqkpjh55hhuzlw2pkx4ithhm4w7infq._file
Verdict:
unknown
Similar samples:
04168ac939b429be58cbe1561edf7e7fffbb3c458992e693855e98bc7d826418
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231027-218z3sag8s/
Behaviour
Enumerates processes with tasklist
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Drops file in System32 directory
Enumerates connected drives
Executes dropped EXE
Loads dropped DLL
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: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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
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.

  
Delivery method
Distributed via e-mail link

Comments