f8c9c54659aabc6260e174bbf89afe811b04087b1914b1847ac7015240305474

General

Target

a7e84a86154e0a949a25a3f6f40e6e80N.exe
Size

244KB
MD5

a7e84a86154e0a949a25a3f6f40e6e80
SHA1

d10c135ac0294afc940f0c6ff5817fab62f89613
SHA256

f8c9c54659aabc6260e174bbf89afe811b04087b1914b1847ac7015240305474
SHA512

1695bbfcc87058e78fecd6bc21c812a29dbc0629ff4b2fe5af1b6f8809c7cd896de9f0a6968744db5acbde7343deed6da519beedb5550403137f8ee454826300
SSDEEP

6144:MEXlSylvFuWaS54hIAv/QhuA7HY8pPZ0FP6BzxM5EmX:ZAylvv5YRwh9HYd61xhmX

Score

10^/10

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
2464	svchost.exe

Loads dropped DLL 7 IoCs

pid	Process
1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe
1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe
2828	WerFault.exe
2828	WerFault.exe
2828	WerFault.exe
2828	WerFault.exe
2828	WerFault.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\e563fbee = "C:\\Windows\\apppatch\\svchost.exe"	a7e84a86154e0a949a25a3f6f40e6e80N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\e563fbee = "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	a7e84a86154e0a949a25a3f6f40e6e80N.exe
File created	C:\Windows\apppatch\svchost.exe	a7e84a86154e0a949a25a3f6f40e6e80N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2828	2464	WerFault.exe	31

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2464	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2464	1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe	31
PID 1488 wrote to memory of 2464	1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe	31
PID 1488 wrote to memory of 2464	1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe	31
PID 1488 wrote to memory of 2464	1488	a7e84a86154e0a949a25a3f6f40e6e80N.exe	31
PID 2464 wrote to memory of 2828	2464	svchost.exe	32
PID 2464 wrote to memory of 2828	2464	svchost.exe	32
PID 2464 wrote to memory of 2828	2464	svchost.exe	32
PID 2464 wrote to memory of 2828	2464	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\a7e84a86154e0a949a25a3f6f40e6e80N.exe
"C:\Users\Admin\AppData\Local\Temp\a7e84a86154e0a949a25a3f6f40e6e80N.exe"
1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 404
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\AppPatch\svchost.exe

Filesize
244KB

MD5
f84d5bfd8776c448a7cc74ef3d6b7455

SHA1
5b6882cb4cce8e276d32c202eb63a148c197e4b7

SHA256
5ea709b559a8e2e05a34a789b05fd4a49dd8cdc83d45dcd6963ff28003416a9e

SHA512
a212d3a4028dde95ac077228f01a144f9d7ab09716a15bc58816fc7e5c401903c5b1f7b9e3a0d1fba4db21353e8abe8baad3576a08c44f6b6f92ec9679a40ead

Download Submit
memory/1488-0-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1488-1-0x00000000002C0000-0x0000000000328000-memory.dmp

Filesize
416KB

Download
memory/1488-2-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/1488-18-0x00000000002C0000-0x0000000000328000-memory.dmp

Filesize
416KB

Download
memory/1488-19-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2464-29-0x0000000001D40000-0x0000000001D8A000-memory.dmp

Filesize
296KB

Download
memory/2464-17-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2464-20-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2464-30-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2464-27-0x0000000001D40000-0x0000000001D8A000-memory.dmp

Filesize
296KB

Download
memory/2464-25-0x0000000001D40000-0x0000000001D8A000-memory.dmp

Filesize
296KB

Download
memory/2464-23-0x0000000001D40000-0x0000000001D8A000-memory.dmp

Filesize
296KB

Download
memory/2464-21-0x0000000001D40000-0x0000000001D8A000-memory.dmp

Filesize
296KB

Download
memory/2464-31-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2464-34-0x0000000002470000-0x00000000024C8000-memory.dmp

Filesize
352KB

Download
memory/2464-36-0x0000000002470000-0x00000000024C8000-memory.dmp

Filesize
352KB

Download
memory/2464-32-0x0000000002470000-0x00000000024C8000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads