19d4f2315168ef8ba41ea08821ee0954ad89f9ae90408f07ee39bc28f52a2326

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2024 17:10

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General

Target

7aceb8b464e70884cf67cd4b95cab6f8.exe
Size

378KB
MD5

7aceb8b464e70884cf67cd4b95cab6f8
SHA1

ed76e4705d7462f228a1a65fc5c555e0eedef258
SHA256

19d4f2315168ef8ba41ea08821ee0954ad89f9ae90408f07ee39bc28f52a2326
SHA512

36a78c3577f6ab281380b3d5d6c8271a1af03d5cfb332573d0b39bd34700c08fc2b49ee359fb9e347b6c72e5260e72f3db646245ca35bd0c182213b62f1c9ade
SSDEEP

6144:Ou0s1PdkyyNGf0d/p5RUQ/RN7OTKqyd7qUPakZ2KDKl2tjVcmAYx1s:OLpgf05p5nWTc7AkZ24zX

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3040	csrss.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WINDOWS CSRSS SERVICE = "C:\\Windows\\csrss.exe"	7aceb8b464e70884cf67cd4b95cab6f8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WINDOWS CSRSS SERVICE = "C:\\Windows\\csrss.exe"	csrss.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\csrss.exe	7aceb8b464e70884cf67cd4b95cab6f8.exe
File opened for modification	C:\Windows\csrss.exe	7aceb8b464e70884cf67cd4b95cab6f8.exe
File created	C:\Windows\csrss.exe	csrss.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3216 wrote to memory of 3040	3216	7aceb8b464e70884cf67cd4b95cab6f8.exe	85
PID 3216 wrote to memory of 3040	3216	7aceb8b464e70884cf67cd4b95cab6f8.exe	85
PID 3216 wrote to memory of 3040	3216	7aceb8b464e70884cf67cd4b95cab6f8.exe	85

C:\Users\Admin\AppData\Local\Temp\7aceb8b464e70884cf67cd4b95cab6f8.exe
"C:\Users\Admin\AppData\Local\Temp\7aceb8b464e70884cf67cd4b95cab6f8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3216
- C:\Windows\csrss.exe
  C:\Windows\csrss.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\csrss.exe

Filesize
378KB

MD5
7aceb8b464e70884cf67cd4b95cab6f8

SHA1
ed76e4705d7462f228a1a65fc5c555e0eedef258

SHA256
19d4f2315168ef8ba41ea08821ee0954ad89f9ae90408f07ee39bc28f52a2326

SHA512
36a78c3577f6ab281380b3d5d6c8271a1af03d5cfb332573d0b39bd34700c08fc2b49ee359fb9e347b6c72e5260e72f3db646245ca35bd0c182213b62f1c9ade

Download Submit
memory/3040-5-0x0000000002800000-0x0000000002801000-memory.dmp

Filesize
4KB

Download
memory/3040-7-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3040-13-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/3216-0-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/3216-6-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads