ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 03:18

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General

Target

ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe
Size

118KB
MD5

aa66ed22621009a9cac7e9ece12a6c95
SHA1

b6c4b49715a0760779b9ebb417c296ace49210ef
SHA256

ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0
SHA512

9d07d9f78fb563f297b965f2e2f8618c7f05454d58ace74a59482afa8b80991e4dc170b38f18028910adaabea2e013836971f653a79da60a620cc683fd0c45c9
SSDEEP

3072:OE9j8b3ZXgKC1hX//iASOXRJzDOD26j/3DcO:OEebiKuX//iZOXRJ3OD26jH

Score

8^/10

evasion execution

Malware Config

Signatures

Stops running service(s) 4 TTPs
evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002
Executes dropped EXE 1 IoCs

Processes:

smss.exe

pid process

2872 smss.exe

pid	process
2872	smss.exe

Loads dropped DLL 2 IoCs

Processes:

ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe

pid	process
2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe
2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe

Drops file in System32 directory 3 IoCs

Processes:

ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exesmss.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe
File opened for modification	C:\Windows\SysWOW64\1230\smss.exe	smss.exe
File opened for modification	C:\Windows\SysWOW64\Service.exe	smss.exe

Launches sc.exe 2 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exe

pid process

1692 sc.exe
2232 sc.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exesmss.exe

pid process

2992 ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe
2872 smss.exe

pid	process
1692	sc.exe
2232	sc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exesmss.exe

description	pid	process	target process
PID 2992 wrote to memory of 1692	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	sc.exe
PID 2992 wrote to memory of 1692	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	sc.exe
PID 2992 wrote to memory of 1692	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	sc.exe
PID 2992 wrote to memory of 1692	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	sc.exe
PID 2992 wrote to memory of 2872	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	smss.exe
PID 2992 wrote to memory of 2872	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	smss.exe
PID 2992 wrote to memory of 2872	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	smss.exe
PID 2992 wrote to memory of 2872	2992	ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe	smss.exe
PID 2872 wrote to memory of 2232	2872	smss.exe	sc.exe
PID 2872 wrote to memory of 2232	2872	smss.exe	sc.exe
PID 2872 wrote to memory of 2232	2872	smss.exe	sc.exe
PID 2872 wrote to memory of 2232	2872	smss.exe	sc.exe

C:\Users\Admin\AppData\Local\Temp\ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe
"C:\Users\Admin\AppData\Local\Temp\ca7010b453502d8925e70736196f0d4af0fa6b0db913a2b803b67f1ee87735e0.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe stop wscsvc
  2⤵
  - Launches sc.exe
  PID:1692
- C:\Windows\SysWOW64\1230\smss.exe
  C:\Windows\system32\1230\smss.exe -d
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2872
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe stop wscsvc
    3⤵
    - Launches sc.exe
    PID:2232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

\Windows\SysWOW64\1230\smss.exe

Filesize
118KB

MD5
c8dc1aef50845008f1606d9155071ebf

SHA1
b588c0a081e532f43fb32ebe51a1b339c3a5a638

SHA256
770c5dd633851edc2f1ddcd7f0cbf16780277829d97efe428f18e1eb2a65435e

SHA512
5b41792bac2b2af24b2fdfd49f3d15be47c5b789db176f64f78b86da6bf699d72b2727d18f5f0d8bbe01a08d8e859bc5e26a068752a474eaacd3774cc1277854

Download Submit
memory/2992-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

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