ccf74829e0681045497a49edba7a42b5c6b18147a5b3cad6a797cae363822581

General

Target

5a875beafded7bc4e2bc201dc7d20bc0N.exe
Size

244KB
MD5

5a875beafded7bc4e2bc201dc7d20bc0
SHA1

5941d10d291c7c80b0d54d255a0e24d38aa2a7cd
SHA256

ccf74829e0681045497a49edba7a42b5c6b18147a5b3cad6a797cae363822581
SHA512

14a8e8a425eb254264bd65b19e4e74d7cb4571bebf70345e0cece519644ea636a7462362314cb46d00b089944c66eb9aa993cf5a9554064e1179b03c88750ebc
SSDEEP

6144:sEXlSylvFuWaS54hIAv/QhuA7HY8pPZ0FP6BzxM5EmX:5Aylvv5YRwh9HYd61xhmX

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
2376	svchost.exe

Loads dropped DLL 7 IoCs

pid	Process
2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe
2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe
2760	WerFault.exe
2760	WerFault.exe
2760	WerFault.exe
2760	WerFault.exe
2760	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\ae531a6d = "C:\\Windows\\apppatch\\svchost.exe"	5a875beafded7bc4e2bc201dc7d20bc0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ae531a6d = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	5a875beafded7bc4e2bc201dc7d20bc0N.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	5a875beafded7bc4e2bc201dc7d20bc0N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2760	2376	WerFault.exe	30

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	5a875beafded7bc4e2bc201dc7d20bc0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2376	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2376	2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe	30
PID 2136 wrote to memory of 2376	2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe	30
PID 2136 wrote to memory of 2376	2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe	30
PID 2136 wrote to memory of 2376	2136	5a875beafded7bc4e2bc201dc7d20bc0N.exe	30
PID 2376 wrote to memory of 2760	2376	svchost.exe	31
PID 2376 wrote to memory of 2760	2376	svchost.exe	31
PID 2376 wrote to memory of 2760	2376	svchost.exe	31
PID 2376 wrote to memory of 2760	2376	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\5a875beafded7bc4e2bc201dc7d20bc0N.exe
"C:\Users\Admin\AppData\Local\Temp\5a875beafded7bc4e2bc201dc7d20bc0N.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:2136
- 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
  - Suspicious use of WriteProcessMemory
  PID:2376
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 352
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2760

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\AppPatch\svchost.exe

Filesize
244KB

MD5
fd8e0ba467bc8fff56a4dee4eccc876d

SHA1
fd3343592a5c5e898e655542a0045e984ec159c8

SHA256
53cba19903d0c029087005e30638174582d972f9e329a64cc1a0ea30e7dbbc3d

SHA512
e184ffc2f62cbb08009fa1dd74352c15e2ed458398f977446eb583d88288edb4f1157e9329fc2bd62b0189efdd0eee48397c4f465bef46d3783b8f4fac3d64d4

Download Submit
memory/2136-18-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2136-1-0x00000000002F0000-0x0000000000358000-memory.dmp

Filesize
416KB

Download
memory/2136-2-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2136-0-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2136-17-0x00000000002F0000-0x0000000000358000-memory.dmp

Filesize
416KB

Download
memory/2376-28-0x00000000022D0000-0x000000000231A000-memory.dmp

Filesize
296KB

Download
memory/2376-20-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2376-19-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2376-25-0x00000000022D0000-0x000000000231A000-memory.dmp

Filesize
296KB

Download
memory/2376-23-0x00000000022D0000-0x000000000231A000-memory.dmp

Filesize
296KB

Download
memory/2376-21-0x00000000022D0000-0x000000000231A000-memory.dmp

Filesize
296KB

Download
memory/2376-29-0x00000000022D0000-0x000000000231A000-memory.dmp

Filesize
296KB

Download
memory/2376-30-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download
memory/2376-31-0x0000000002460000-0x00000000024B8000-memory.dmp

Filesize
352KB

Download
memory/2376-33-0x0000000002460000-0x00000000024B8000-memory.dmp

Filesize
352KB

Download
memory/2376-36-0x0000000002460000-0x00000000024B8000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads