b681b5a1b72475075ec9480b1c1acdcfd16b5bde2d7f3bd9578dbc9a8a553d64

Analysis

max time kernel
120s
max time network
112s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 00:11

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General

Target

4652aff532fce673afb6bdf984d8ad60N.exe
Size

157KB
MD5

4652aff532fce673afb6bdf984d8ad60
SHA1

06bb0f4ff5b4e2b888793e34599a0cb2e34b1b4e
SHA256

b681b5a1b72475075ec9480b1c1acdcfd16b5bde2d7f3bd9578dbc9a8a553d64
SHA512

c035b89a108f8cc34406543d894a609cb04ec8fd7cdd58fbebca3a61591432429845188669d113f1faf63f08007204dbce133d09fff37823380d4e1c71c1192a
SSDEEP

3072:leVsjyYsAq/C3RCzgJHvNA1PpYfFL6zU+BEfi:gOjjqahUSPe1SZ+h

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
1208	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
1080	4652aff532fce673afb6bdf984d8ad60N.exe
1080	4652aff532fce673afb6bdf984d8ad60N.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\5799574e = "C:\\Windows\\apppatch\\svchost.exe"	4652aff532fce673afb6bdf984d8ad60N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\5799574e = "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	4652aff532fce673afb6bdf984d8ad60N.exe
File created	C:\Windows\apppatch\svchost.exe	4652aff532fce673afb6bdf984d8ad60N.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	4652aff532fce673afb6bdf984d8ad60N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe
1208	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1080	4652aff532fce673afb6bdf984d8ad60N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 1208	1080	4652aff532fce673afb6bdf984d8ad60N.exe	30
PID 1080 wrote to memory of 1208	1080	4652aff532fce673afb6bdf984d8ad60N.exe	30
PID 1080 wrote to memory of 1208	1080	4652aff532fce673afb6bdf984d8ad60N.exe	30
PID 1080 wrote to memory of 1208	1080	4652aff532fce673afb6bdf984d8ad60N.exe	30

C:\Users\Admin\AppData\Local\Temp\4652aff532fce673afb6bdf984d8ad60N.exe
"C:\Users\Admin\AppData\Local\Temp\4652aff532fce673afb6bdf984d8ad60N.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:1080
- 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:1208

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
157KB

MD5
f3a1c59d35b33942de6ca165cb6961db

SHA1
eb1c536054746f8ce8c94e501fb11cf969390fa9

SHA256
c11c352165a8ec2727c4dbab1261709912175ed98887896792b8d7e2cdcd0cca

SHA512
b97a4086a3177883c70054878fffd6c2209e8099ec9bf0f10f8eb9dff436fd80736171befe908fa6454beab11f44f756ff0f0dce424beb1d66a13f05bf01ada2

Download Submit
memory/1080-13-0x00000000000B0000-0x00000000000E0000-memory.dmp

Filesize
192KB

Download
memory/1208-20-0x0000000000160000-0x00000000001A6000-memory.dmp

Filesize
280KB

Download
memory/1208-24-0x0000000000160000-0x00000000001A6000-memory.dmp

Filesize
280KB

Download
memory/1208-22-0x0000000000160000-0x00000000001A6000-memory.dmp

Filesize
280KB

Download
memory/1208-18-0x0000000000160000-0x00000000001A6000-memory.dmp

Filesize
280KB

Download
memory/1208-16-0x0000000000160000-0x00000000001A6000-memory.dmp

Filesize
280KB

Download
memory/1208-14-0x0000000000160000-0x00000000001A6000-memory.dmp

Filesize
280KB

Download
memory/1208-25-0x0000000000430000-0x000000000047A000-memory.dmp

Filesize
296KB

Download
memory/1208-28-0x0000000000430000-0x000000000047A000-memory.dmp

Filesize
296KB

Download
memory/1208-30-0x0000000000430000-0x000000000047A000-memory.dmp

Filesize
296KB

Download
memory/1208-29-0x0000000000430000-0x000000000047A000-memory.dmp

Filesize
296KB

Download
memory/1208-33-0x0000000000430000-0x000000000047A000-memory.dmp

Filesize
296KB

Download