75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296

Analysis

max time kernel
153s
max time network
47s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
28/11/2022, 04:37

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General

Target

75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
Size

57KB
MD5

65dbfe4dd8eb7c9b94bdae5b6d46bb67
SHA1

86456512514d4f43ed930b6a8decad89b6639b3f
SHA256

75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296
SHA512

a14dfcc62c470a1a269b855f262f6c6c377a994f8bcb1f4b597f158600ba3193653fe0bd4e70906d223097fa783bb73709b99346a1402567b6bbc0fce43624b9
SSDEEP

768:meNmfdOtRDlXaswgwIQnHwgsz87gmBwd29yAllpUa/HZpuLtd4ikI+byQeqd5x7L:meCd6RhXangwbImmd8yO3ZVvyQNGrvc

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exeC:\\Windows\\svchost.exe,"	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe

Executes dropped EXE 1 IoCs

pid	Process
1260	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
1260	svchost.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\PDLL.dll	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
File opened for modification	C:\Windows\svchost.exe	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1260	svchost.exe
1260	svchost.exe
1260	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 1260	1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe	28
PID 1632 wrote to memory of 1260	1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe	28
PID 1632 wrote to memory of 1260	1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe	28
PID 1632 wrote to memory of 1260	1632	75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe	28

C:\Users\Admin\AppData\Local\Temp\75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe
"C:\Users\Admin\AppData\Local\Temp\75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\svchost.exe
  C:\Windows\svchost.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1260

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\svchost.exe

Filesize
57KB

MD5
65dbfe4dd8eb7c9b94bdae5b6d46bb67

SHA1
86456512514d4f43ed930b6a8decad89b6639b3f

SHA256
75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296

SHA512
a14dfcc62c470a1a269b855f262f6c6c377a994f8bcb1f4b597f158600ba3193653fe0bd4e70906d223097fa783bb73709b99346a1402567b6bbc0fce43624b9

Download Submit
C:\Windows\svchost.exe

Filesize
57KB

MD5
65dbfe4dd8eb7c9b94bdae5b6d46bb67

SHA1
86456512514d4f43ed930b6a8decad89b6639b3f

SHA256
75fcc9a9f6d5d8cdffa34f17894ae22f7c035679098b5cb0a8dbbf00fda20296

SHA512
a14dfcc62c470a1a269b855f262f6c6c377a994f8bcb1f4b597f158600ba3193653fe0bd4e70906d223097fa783bb73709b99346a1402567b6bbc0fce43624b9

Download Submit
\Windows\SysWOW64\PDLL.dll

Filesize
106KB

MD5
6d8639481e7da863b32e5c0d06adeab0

SHA1
0213d960897560948d7e34ecab137ad170ed5329

SHA256
46edfedea9cdc3e35b138ca8b6fdd05e2a05413206ff4e89d405a9eb8dee18f3

SHA512
1df8d93c6c2c2a006bf7b740b193e1f6d57ed921663d59a20ffe98d5cea948f8f23856cce2d33ca72b5a9f7c7b3ca56c345922212fc1bd719bf3947ea86960a9

Download Submit
memory/1260-59-0x00000000002C0000-0x00000000002E0000-memory.dmp

Filesize
128KB

Download
memory/1260-60-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1632-55-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download