cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e

Analysis

max time kernel
120s
max time network
96s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22/11/2024, 18:52

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General

Target

cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe
Size

240KB
MD5

5a547ec7ca82bdacf788e603f99af09b
SHA1

615dc3fdcd52a3c60d8e59fb4e0fc81f5cb2436f
SHA256

cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e
SHA512

b51234b2d47181debff9c569fc24e88661c2b15bf1359be5b135b75e3b99ee2c55d2b64639ddb4f01faa880caee3b867e599a255b9294866ad59e6647f23c084
SSDEEP

6144:5uOYYecObhLvkiL2XOdldJNifl4wwXCAjVrUEzvbeTIu//Y:cK1y9hrTiN4nBRrUS6Tf/w

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
2680	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe
2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.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\fc9b2ff9 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\fc9b2ff9 = "C:\\Windows\\apppatch\\svchost.exe"	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\apppatch\svchost.exe	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe
File created	C:\Windows\apppatch\svchost.exe	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.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	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2680	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2732 wrote to memory of 2680	2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe	30
PID 2732 wrote to memory of 2680	2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe	30
PID 2732 wrote to memory of 2680	2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe	30
PID 2732 wrote to memory of 2680	2732	cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe	30

C:\Users\Admin\AppData\Local\Temp\cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.exe
"C:\Users\Admin\AppData\Local\Temp\cafa3a9f6e1d227791542ae76b2a47242d5b0b62e9d26965a8a46cc9e60c055e.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:2732
- 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:2680

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
240KB

MD5
cc03e610f330611f9b08655a4a3bc94c

SHA1
53e5cd4eae877051bf37f74e78575ec57aa3718f

SHA256
2af27be4d995a90ae59d7f3e49367d42f6df1734ae6ced17da9e88683e83121b

SHA512
4acec925067552509b3c0edfe9d76d086117f86401d1f63d1b7bc7fe8fbfd6bd22f09592735cabe0ce2fc0b02ebf85aa9c1ecaf29aeebcb6a25bb8ee82a78857

Download Submit
memory/2680-45-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/2680-62-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/2680-84-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/2680-83-0x0000000003CB0000-0x0000000003CB1000-memory.dmp

Filesize
4KB

Download
memory/2680-18-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2680-81-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/2680-80-0x0000000003CA0000-0x0000000003CA1000-memory.dmp

Filesize
4KB

Download
memory/2680-20-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2680-21-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2680-26-0x0000000000480000-0x000000000050C000-memory.dmp

Filesize
560KB

Download
memory/2680-32-0x0000000000480000-0x000000000050C000-memory.dmp

Filesize
560KB

Download
memory/2680-30-0x0000000000480000-0x000000000050C000-memory.dmp

Filesize
560KB

Download
memory/2680-33-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2680-24-0x0000000000480000-0x000000000050C000-memory.dmp

Filesize
560KB

Download
memory/2680-22-0x0000000000480000-0x000000000050C000-memory.dmp

Filesize
560KB

Download
memory/2680-28-0x0000000000480000-0x000000000050C000-memory.dmp

Filesize
560KB

Download
memory/2680-38-0x0000000002280000-0x000000000231B000-memory.dmp

Filesize
620KB

Download
memory/2680-36-0x0000000002280000-0x000000000231B000-memory.dmp

Filesize
620KB

Download
memory/2680-34-0x0000000002280000-0x000000000231B000-memory.dmp

Filesize
620KB

Download
memory/2680-42-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/2680-44-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/2680-77-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/2680-76-0x0000000003C80000-0x0000000003C81000-memory.dmp

Filesize
4KB

Download
memory/2680-48-0x0000000000800000-0x0000000000801000-memory.dmp

Filesize
4KB

Download
memory/2680-49-0x00000000028F0000-0x00000000028F1000-memory.dmp

Filesize
4KB

Download
memory/2680-52-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

Filesize
4KB

Download
memory/2680-53-0x00000000028F0000-0x00000000028F1000-memory.dmp

Filesize
4KB

Download
memory/2680-55-0x0000000002BD0000-0x0000000002BD1000-memory.dmp

Filesize
4KB

Download
memory/2680-56-0x0000000003060000-0x0000000003061000-memory.dmp

Filesize
4KB

Download
memory/2680-59-0x00000000030C0000-0x00000000030C1000-memory.dmp

Filesize
4KB

Download
memory/2680-60-0x0000000003060000-0x0000000003061000-memory.dmp

Filesize
4KB

Download
memory/2680-46-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/2680-66-0x0000000003130000-0x0000000003131000-memory.dmp

Filesize
4KB

Download
memory/2680-67-0x00000000030E0000-0x00000000030E1000-memory.dmp

Filesize
4KB

Download
memory/2680-69-0x0000000003140000-0x0000000003141000-memory.dmp

Filesize
4KB

Download
memory/2680-70-0x0000000003350000-0x0000000003351000-memory.dmp

Filesize
4KB

Download
memory/2680-73-0x0000000003360000-0x0000000003361000-memory.dmp

Filesize
4KB

Download
memory/2680-74-0x0000000003350000-0x0000000003351000-memory.dmp

Filesize
4KB

Download
memory/2732-0-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2732-2-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/2732-16-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2732-17-0x0000000000240000-0x00000000002A5000-memory.dmp

Filesize
404KB

Download
memory/2732-19-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/2732-1-0x0000000000240000-0x00000000002A5000-memory.dmp

Filesize
404KB

Download