b681b5a1b72475075ec9480b1c1acdcfd16b5bde2d7f3bd9578dbc9a8a553d64

Analysis

max time kernel
120s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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
2344	svchost.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\eda915e9 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\eda915e9 = "C:\\Windows\\apppatch\\svchost.exe"	4652aff532fce673afb6bdf984d8ad60N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	4652aff532fce673afb6bdf984d8ad60N.exe
File opened for modification	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 2 IoCs

pid	Process
2344	svchost.exe
2344	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1528	4652aff532fce673afb6bdf984d8ad60N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 2344	1528	4652aff532fce673afb6bdf984d8ad60N.exe	91
PID 1528 wrote to memory of 2344	1528	4652aff532fce673afb6bdf984d8ad60N.exe	91
PID 1528 wrote to memory of 2344	1528	4652aff532fce673afb6bdf984d8ad60N.exe	91

C:\Users\Admin\AppData\Local\Temp\4652aff532fce673afb6bdf984d8ad60N.exe
"C:\Users\Admin\AppData\Local\Temp\4652aff532fce673afb6bdf984d8ad60N.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1528
- 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:2344

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4108,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4020 /prefetch:8
1⤵
PID:1040

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

C:\Windows\apppatch\svchost.exe

Filesize
157KB

MD5
53a79aec6cac548bdbb0f8ae1ae460fc

SHA1
79593febf2c969f6f56c2f0387d3a835caec0833

SHA256
8b70d3efd39f7557f92415cb1aaa7090b8bdb71d5d4c606872a8fa5d772a6f90

SHA512
1216f02940f34324fc570308ae0898113deca03df540597bb24893e7e49b589f85df31fab40cc92e72047ce0c76310d23c6a7ab84182ca104f7d10339e671bca

Download Submit
memory/1528-9-0x0000000000820000-0x0000000000850000-memory.dmp

Filesize
192KB

Download
memory/2344-10-0x0000000002C80000-0x0000000002CC6000-memory.dmp

Filesize
280KB

Download
memory/2344-11-0x0000000002D10000-0x0000000002D5A000-memory.dmp

Filesize
296KB

Download
memory/2344-13-0x0000000002D10000-0x0000000002D5A000-memory.dmp

Filesize
296KB

Download
memory/2344-15-0x0000000002D10000-0x0000000002D5A000-memory.dmp

Filesize
296KB

Download
memory/2344-18-0x0000000002D10000-0x0000000002D5A000-memory.dmp

Filesize
296KB

Download