b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccdd

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
21-09-2024 03:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
Size

135KB
MD5

a014cfc4caa0ea34943e3f257e4d84b0
SHA1

c08640c3f3ba0f4feae91edef3225807578f4aca
SHA256

b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccdd
SHA512

8102ef018133ffbef1e033eef87e4887cdd619c81296ef7773f5ccaf742c10581f87ec626f0a9f7ada7331d62afae6bdd88acfba4f2bac2bc29b578b0b94bf90
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVdS2:UVqoCl/YgjxEufVU0TbTyDDalrS2

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2956	explorer.exe
972	spoolsv.exe
2024	svchost.exe
2680	spoolsv.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe
2956	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2956	explorer.exe
2024	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
2956	explorer.exe
2956	explorer.exe
972	spoolsv.exe
972	spoolsv.exe
2024	svchost.exe
2024	svchost.exe
2680	spoolsv.exe
2680	spoolsv.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2956	2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe	89
PID 2060 wrote to memory of 2956	2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe	89
PID 2060 wrote to memory of 2956	2060	b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe	89
PID 2956 wrote to memory of 972	2956	explorer.exe	90
PID 2956 wrote to memory of 972	2956	explorer.exe	90
PID 2956 wrote to memory of 972	2956	explorer.exe	90
PID 972 wrote to memory of 2024	972	spoolsv.exe	91
PID 972 wrote to memory of 2024	972	spoolsv.exe	91
PID 972 wrote to memory of 2024	972	spoolsv.exe	91
PID 2024 wrote to memory of 2680	2024	svchost.exe	92
PID 2024 wrote to memory of 2680	2024	svchost.exe	92
PID 2024 wrote to memory of 2680	2024	svchost.exe	92

C:\Users\Admin\AppData\Local\Temp\b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe
"C:\Users\Admin\AppData\Local\Temp\b5b4eeb48afcdafa22ee0f22a09407c49d0b36b4ec3787e7a5089a0297e7ccddN.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2060
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2956
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:972
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2024
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2680

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=4336,i,16316361669272684588,6171287487746154806,262144 --variations-seed-version --mojo-platform-channel-handle=3776 /prefetch:8
1⤵
PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

Loading Replay Monitor...

Downloads

C:\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
b08fc2692f5beb825346f9e09d089f1c

SHA1
02e5455e0a1063363a08056df5963e66f692e8f1

SHA256
95a8b3ec3bec50ae08c7c0dcd2f5d294a4748aaeeb3e9f8139c7fd7a40192beb

SHA512
7103efdf95af4ece109ceb2ad7af0e2e908ae13b6dbf39078383259eb586cc28e0eb9db76b306911b9907041072c4f739c638e85be069f0306328f7b53944fe3

Download Submit
C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
566d96667b786163089e663232bebab4

SHA1
d29e9ff8b65fd577e682b026fd48b73694e9d229

SHA256
20ec875f81f6a85e550063bd02c7bb450293c928f7364af04fe46e2227dc5b39

SHA512
c6ec591f01fd762b88a427dce5899b6726970719995dca1cb2ce7fdaf9f789dc765c3fd6850a8ac7e002dcf5a1ebb1d464819bf3356eb271be16ba07a800d550

Download Submit
C:\Windows\Resources\svchost.exe

Filesize
135KB

MD5
e6a474d34285677147ec48e40f3cc697

SHA1
3d7b12f27ae58917e196f2d95dd3214821e761a9

SHA256
4a2e1ffe6f7a417561e2edcf8c4d44a1f57be38bae263f1795c88950e12facba

SHA512
fe0d8bb51444148a4afd51fb46e97db4e81c0cf1a78e4b787dc3c441e132ad32f83e762ec2bac50a7b14c5713c298bc4b82dc56837bf826e8a97e8b6a019ad58

Download Submit
memory/972-33-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2024-36-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2060-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2060-34-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2680-32-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2956-35-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download