aa3e8fae7ce9f67681df65a278fa728a89defeac3e00305371e4b2571a935b34

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 02:37

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General

Target

f0fd0016c5c701dbe7689d478c293fe0N.exe
Size

206KB
MD5

f0fd0016c5c701dbe7689d478c293fe0
SHA1

91c3028901eb74d6b3d3514139d654a5122bac20
SHA256

aa3e8fae7ce9f67681df65a278fa728a89defeac3e00305371e4b2571a935b34
SHA512

f5f60bcde88f76278883daed342776b30537f370dd88377ec37536692cfa236d274221d4c1682e43b083f9b09df1b0a3a66510bf2725dd9cf4249370a11c9b48
SSDEEP

1536:/fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJdCUUUUUUUUUUUUH:/VqoCl/YgjxEufVU0TbTyDDalbg

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Executes dropped EXE 4 IoCs

pid	Process
2380	explorer.exe
2232	spoolsv.exe
2156	svchost.exe
2876	spoolsv.exe

Loads dropped DLL 8 IoCs

pid	Process
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
2380	explorer.exe
2380	explorer.exe
2232	spoolsv.exe
2232	spoolsv.exe
2156	svchost.exe
2156	svchost.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"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
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

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	f0fd0016c5c701dbe7689d478c293fe0N.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 7 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	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f0fd0016c5c701dbe7689d478c293fe0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2976	schtasks.exe
1312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2380	explorer.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2156	svchost.exe
2380	explorer.exe
2156	svchost.exe
2380	explorer.exe
2156	svchost.exe
2380	explorer.exe
2380	explorer.exe
2156	svchost.exe
2156	svchost.exe
2380	explorer.exe
2156	svchost.exe
2380	explorer.exe
2380	explorer.exe
2156	svchost.exe
2380	explorer.exe
2156	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2156	svchost.exe
2380	explorer.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
840	f0fd0016c5c701dbe7689d478c293fe0N.exe
2380	explorer.exe
2380	explorer.exe
2232	spoolsv.exe
2232	spoolsv.exe
2156	svchost.exe
2156	svchost.exe
2876	spoolsv.exe
2876	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 2380	840	f0fd0016c5c701dbe7689d478c293fe0N.exe	30
PID 840 wrote to memory of 2380	840	f0fd0016c5c701dbe7689d478c293fe0N.exe	30
PID 840 wrote to memory of 2380	840	f0fd0016c5c701dbe7689d478c293fe0N.exe	30
PID 840 wrote to memory of 2380	840	f0fd0016c5c701dbe7689d478c293fe0N.exe	30
PID 2380 wrote to memory of 2232	2380	explorer.exe	31
PID 2380 wrote to memory of 2232	2380	explorer.exe	31
PID 2380 wrote to memory of 2232	2380	explorer.exe	31
PID 2380 wrote to memory of 2232	2380	explorer.exe	31
PID 2232 wrote to memory of 2156	2232	spoolsv.exe	32
PID 2232 wrote to memory of 2156	2232	spoolsv.exe	32
PID 2232 wrote to memory of 2156	2232	spoolsv.exe	32
PID 2232 wrote to memory of 2156	2232	spoolsv.exe	32
PID 2156 wrote to memory of 2876	2156	svchost.exe	33
PID 2156 wrote to memory of 2876	2156	svchost.exe	33
PID 2156 wrote to memory of 2876	2156	svchost.exe	33
PID 2156 wrote to memory of 2876	2156	svchost.exe	33
PID 2380 wrote to memory of 2740	2380	explorer.exe	34
PID 2380 wrote to memory of 2740	2380	explorer.exe	34
PID 2380 wrote to memory of 2740	2380	explorer.exe	34
PID 2380 wrote to memory of 2740	2380	explorer.exe	34
PID 2156 wrote to memory of 2976	2156	svchost.exe	35
PID 2156 wrote to memory of 2976	2156	svchost.exe	35
PID 2156 wrote to memory of 2976	2156	svchost.exe	35
PID 2156 wrote to memory of 2976	2156	svchost.exe	35
PID 2156 wrote to memory of 1312	2156	svchost.exe	39
PID 2156 wrote to memory of 1312	2156	svchost.exe	39
PID 2156 wrote to memory of 1312	2156	svchost.exe	39
PID 2156 wrote to memory of 1312	2156	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\f0fd0016c5c701dbe7689d478c293fe0N.exe
"C:\Users\Admin\AppData\Local\Temp\f0fd0016c5c701dbe7689d478c293fe0N.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:840
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Loads dropped DLL
  - 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:2380
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2232
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2156
    - - \??\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:2876
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:39 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2976
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:40 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1312
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\Windows\Resources\svchost.exe

Filesize
206KB

MD5
276adb0463654034c058bfeec97d5de9

SHA1
57dafc3068e69010106a1e844f58a74a079413c5

SHA256
dcab46f3e73a33d62c1acab0defe033b30ded7df916603f690d68ed78d0c3cfe

SHA512
f494350f10e51d10deccd91690462a37892672c726c909cf41d8a5a1bceb8c6cffe60cecb1f931b89d8769e7072e627273fb4f230129830b6b26d10f90421b31

Download Submit
\Windows\Resources\Themes\explorer.exe

Filesize
206KB

MD5
f979a0ec82a1d0ea88d0db6ddf5d2a03

SHA1
1993ddedc45a088344b61a2d3ea300b5ec5c5a55

SHA256
3da806e68593a69d9839a6d58eaa2991b6e2641b51c99e8d9a81e4f3e7918107

SHA512
6be4013d31469b4f18d5cde08a4a9698785caf05e1cc2ad63bc80c05ef626c383117d278baf5f8438587b3798e9dd61385839a1b9f7b5b74273d46119c487ec7

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
206KB

MD5
c1c10a20c69efcbf07abbfac22250d3d

SHA1
c712e2f40730a1cbc16b52f7b2f2188ab930358c

SHA256
3e107769e8e841445f0281a5d5039653249909114b846292f732657e3bb07667

SHA512
d4bb21dc2cce2a0c4f11a0979583ea94a0c52b17fbd14a5a1077d49a669af9ae57597132aff6db7466d92565e803dcf46094d65fe776ca9da39915d4f07a4a4a

Download Submit
memory/840-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/840-13-0x00000000003C0000-0x00000000003EF000-memory.dmp

Filesize
188KB

Download
memory/840-12-0x00000000003C0000-0x00000000003EF000-memory.dmp

Filesize
188KB

Download
memory/840-54-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2156-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2232-41-0x00000000005C0000-0x00000000005EF000-memory.dmp

Filesize
188KB

Download
memory/2232-53-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2380-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2876-52-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download