50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9f

Analysis

max time kernel
120s
max time network
95s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/09/2024, 11:22

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General

Target

50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe
Size

150KB
MD5

6bc218bcf2fa525581c2f67298fdd200
SHA1

ac23a99a8ce7e27310ee2f26fac1e4685c19f462
SHA256

50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9f
SHA512

496c6180100b6191c8c8451735e97fd0c5fceecf60e2a76b481292ac1d39c138fbb7aa82138e7927acb89d2643f06dab5e88261447569ba0bc243a70c7f81c84
SSDEEP

3072:juuczBGY3j4nLXhfRf70MCRRb85TFcMo7xQGHMOfAVTzXW:jlcEY3iLXXgvRG5TFZoFQaMrHX

Score

10^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe
2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\c7fd2b58 = "C:\\Windows\\apppatch\\svchost.exe"	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\c7fd2b58 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\apppatch\svchost.exe	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe
File created	C:\Windows\apppatch\svchost.exe	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe
2712	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2712	2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe	30
PID 2316 wrote to memory of 2712	2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe	30
PID 2316 wrote to memory of 2712	2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe	30
PID 2316 wrote to memory of 2712	2316	50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe	30

C:\Users\Admin\AppData\Local\Temp\50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe
"C:\Users\Admin\AppData\Local\Temp\50db132f0e0b1faab5e20d41315f3ddd35517edb8416c5ff81562d2217c2db9fN.exe"
1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\AppPatch\svchost.exe

Filesize
150KB

MD5
535dd865f9e17628037c05840d26cb96

SHA1
c8f0ebab626107d03ef68d69ad0d40641c06a9d7

SHA256
6576ce1cc7b2cdaaac662b678a1ff99b1649f002aa800a94e583661a83c30663

SHA512
32dcbb0c032a835cf4698a5bfb163ed7b93fc71bcac0128ed489c10db0a715e479fbb7889e9a742be03bfa56bd918cdba179baaa3440284784cc303c62642839

Download Submit
memory/2316-16-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2316-1-0x0000000000230000-0x0000000000269000-memory.dmp

Filesize
228KB

Download
memory/2316-2-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2316-19-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2316-18-0x0000000000230000-0x0000000000269000-memory.dmp

Filesize
228KB

Download
memory/2316-0-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-28-0x00000000002D0000-0x0000000000316000-memory.dmp

Filesize
280KB

Download
memory/2712-22-0x00000000002D0000-0x0000000000316000-memory.dmp

Filesize
280KB

Download
memory/2712-30-0x00000000002D0000-0x0000000000316000-memory.dmp

Filesize
280KB

Download
memory/2712-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-26-0x00000000002D0000-0x0000000000316000-memory.dmp

Filesize
280KB

Download
memory/2712-33-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-24-0x00000000002D0000-0x0000000000316000-memory.dmp

Filesize
280KB

Download
memory/2712-20-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-21-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2712-32-0x00000000002D0000-0x0000000000316000-memory.dmp

Filesize
280KB

Download
memory/2712-34-0x0000000000450000-0x000000000049A000-memory.dmp

Filesize
296KB

Download
memory/2712-36-0x0000000000450000-0x000000000049A000-memory.dmp

Filesize
296KB

Download
memory/2712-38-0x0000000000450000-0x000000000049A000-memory.dmp

Filesize
296KB

Download
memory/2712-42-0x0000000000450000-0x000000000049A000-memory.dmp

Filesize
296KB

Download