e926ae4a601b8d3222cf205eb885428bc9242197e2fe2c81e059d4d83c9af860

Analysis

max time kernel
46s
max time network
51s
platform
windows7_x64
resource
win7-20220414-en
submitted
05-07-2022 20:11

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General

Target

Case.pdf.lnk
Size

2KB
MD5

81d3c327d043e682d692bad1326c29fa
SHA1

f6389335a6f1c6fecf60a5ce572f2611d01b5981
SHA256

4775f93534bca0f2efe8fbd2e6a67a98c8a6560e8ef6a9381802ef899ffbf4c4
SHA512

8c5bdd1e5d9c36814ae99f334e0f92ab406ed16b9db646901038fa2a8a81a24fcc9534902eb312b50af3fbc40e38d6e424e0673f48b006739508adfa6c7193bd

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: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1428 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1428 powershell.exe

pid	process
1428	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1428	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

cmd.exe

description	pid	process	target process
PID 872 wrote to memory of 1428	872	cmd.exe	powershell.exe
PID 872 wrote to memory of 1428	872	cmd.exe	powershell.exe
PID 872 wrote to memory of 1428	872	cmd.exe	powershell.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Case.pdf.lnk
1⤵
- Suspicious use of WriteProcessMemory
PID:872

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -exec bypass -w h -file HDFcvLHBhKEQvBlli.ps1
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1428

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/872-54-0x000007FEFBB21000-0x000007FEFBB23000-memory.dmp

Filesize
8KB

Download
memory/1428-88-0x0000000000000000-mapping.dmp

Download
memory/1428-93-0x000007FEF40F0000-0x000007FEF4B13000-memory.dmp

Filesize
10.1MB

Download
memory/1428-94-0x0000000002854000-0x0000000002857000-memory.dmp

Filesize
12KB

Download
memory/1428-95-0x000007FEF3590000-0x000007FEF40ED000-memory.dmp

Filesize
11.4MB

Download
memory/1428-96-0x0000000002854000-0x0000000002857000-memory.dmp

Filesize
12KB

Download