d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910

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
20/09/2024, 08:26

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General

Target

d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
Size

135KB
MD5

39e17c31b535f5a7425fbd51750f6bd0
SHA1

52b2d936f2cceaeb387ecc3d2d8f1d7044b587fd
SHA256

d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910
SHA512

61dfa7192cbf6aa9ab245c8cb450d276c7f0318669a9f96fc88babf523c2362b8b935fd4a331e522111258daaa31fa6cfa9153fd1ff946ccbfc47d50e151cec4
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVElWAo:UVqoCl/YgjxEufVU0TbTyDDalqlWAo

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2476	explorer.exe
2260	spoolsv.exe
796	svchost.exe
2152	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2476	explorer.exe
2260	spoolsv.exe
796	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	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2836	schtasks.exe
2012	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
2476	explorer.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
796	svchost.exe
2476	explorer.exe
2476	explorer.exe
796	svchost.exe
2476	explorer.exe
796	svchost.exe
796	svchost.exe
2476	explorer.exe
796	svchost.exe
2476	explorer.exe
2476	explorer.exe
796	svchost.exe
796	svchost.exe
2476	explorer.exe
796	svchost.exe
2476	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2476	explorer.exe
796	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
2476	explorer.exe
2476	explorer.exe
2260	spoolsv.exe
2260	spoolsv.exe
796	svchost.exe
796	svchost.exe
2152	spoolsv.exe
2152	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2476	2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe	30
PID 2400 wrote to memory of 2476	2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe	30
PID 2400 wrote to memory of 2476	2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe	30
PID 2400 wrote to memory of 2476	2400	d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe	30
PID 2476 wrote to memory of 2260	2476	explorer.exe	31
PID 2476 wrote to memory of 2260	2476	explorer.exe	31
PID 2476 wrote to memory of 2260	2476	explorer.exe	31
PID 2476 wrote to memory of 2260	2476	explorer.exe	31
PID 2260 wrote to memory of 796	2260	spoolsv.exe	32
PID 2260 wrote to memory of 796	2260	spoolsv.exe	32
PID 2260 wrote to memory of 796	2260	spoolsv.exe	32
PID 2260 wrote to memory of 796	2260	spoolsv.exe	32
PID 796 wrote to memory of 2152	796	svchost.exe	33
PID 796 wrote to memory of 2152	796	svchost.exe	33
PID 796 wrote to memory of 2152	796	svchost.exe	33
PID 796 wrote to memory of 2152	796	svchost.exe	33
PID 2476 wrote to memory of 2812	2476	explorer.exe	34
PID 2476 wrote to memory of 2812	2476	explorer.exe	34
PID 2476 wrote to memory of 2812	2476	explorer.exe	34
PID 2476 wrote to memory of 2812	2476	explorer.exe	34
PID 796 wrote to memory of 2836	796	svchost.exe	35
PID 796 wrote to memory of 2836	796	svchost.exe	35
PID 796 wrote to memory of 2836	796	svchost.exe	35
PID 796 wrote to memory of 2836	796	svchost.exe	35
PID 796 wrote to memory of 2012	796	svchost.exe	39
PID 796 wrote to memory of 2012	796	svchost.exe	39
PID 796 wrote to memory of 2012	796	svchost.exe	39
PID 796 wrote to memory of 2012	796	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.exe
"C:\Users\Admin\AppData\Local\Temp\d411b09bf79d41e6ae01c2cddcac478d154ac5baaa0ace2802c52db656b62910N.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:2400
- \??\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:2476
- - \??\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:2260
  - - \??\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:796
    - - \??\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:2152
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 08:28 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2836
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 08:29 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2012
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2812

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\spoolsv.exe

Filesize
135KB

MD5
9976dd5358cd4becd2a07f11a1005c0a

SHA1
ab3dbddb227f96f409bbe783f6fcce897ba34d20

SHA256
de8b722f32ba260965aab106157bde4005f94e8de0745f4b7b238595ccb4049d

SHA512
3347eb828b79ff79af09941996b03b8401e400dfa52e690710360fa6e376aa0d76e05548b2f4306d4627becb524c86e7be0d8578205a5ab47faafdf580f72d0d

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

Filesize
135KB

MD5
5c946ce22f59235ff7c551594f18d277

SHA1
3992b69d9e24fb412ad0504b9b3ab3b7d258ce10

SHA256
f20c4a27c6626ade82c36d8e714bd070ef8013610634bcf235b57003e05221dd

SHA512
976a4a0fc784d5c870220e441354d9bbd5656b7eabf55b67d9ab9e358febaee7f0be23d82a4966539661d8a59b2a39d4c9bb7d0af5f864cc8c53dfbf00ca8e01

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
0526bb6c996d259bc74393909f0693be

SHA1
24b2b9f5cd466d48fe4e9b231c77ed5d53e55ae4

SHA256
79ec1ab6678cf637d5fb5bd91b70b5da100c23fb6d683dfb8307f9e1541acbe2

SHA512
3e425e8e4115544a46f21b6bf9139794841e983aaa2f7b6985bde9a3c241ddd884215dd5e9cf4d0ac402e3d67d94f97558f57482398ce1a760352e2499b2fb21

Download Submit
memory/796-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/796-46-0x0000000000280000-0x000000000029F000-memory.dmp

Filesize
124KB

Download
memory/2152-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2260-29-0x0000000000520000-0x000000000053F000-memory.dmp

Filesize
124KB

Download
memory/2260-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2400-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2400-8-0x00000000006F0000-0x000000000070F000-memory.dmp

Filesize
124KB

Download
memory/2400-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2476-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download