d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 04:19

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General

Target

d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
Size

135KB
MD5

3a6187febeedc341dde52d3507b2909f
SHA1

c6db907b576b904c144b05e123260df567d2dd2c
SHA256

d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e
SHA512

41c81d345ef820666a89a30af3a45c079d9f730ca25b1a030fb98075d005701a74e8ac6a8fd8f193b32f959b5fec9df700e0db8ba782f17d4ba958d6d49ae5ee
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbV0hYt:UVqoCl/YgjxEufVU0TbTyDDalht

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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
3032	explorer.exe
2688	spoolsv.exe
2796	svchost.exe
2180	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
3032	explorer.exe
2688	spoolsv.exe
2796	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"	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	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.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 8 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2824	schtasks.exe
2128	schtasks.exe
2132	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
2796	svchost.exe
3032	explorer.exe
3032	explorer.exe
3032	explorer.exe
2796	svchost.exe
2796	svchost.exe
3032	explorer.exe
2796	svchost.exe
3032	explorer.exe
2796	svchost.exe
3032	explorer.exe
2796	svchost.exe
3032	explorer.exe
2796	svchost.exe
3032	explorer.exe
2796	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3032	explorer.exe
2796	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
3032	explorer.exe
3032	explorer.exe
2688	spoolsv.exe
2688	spoolsv.exe
2796	svchost.exe
2796	svchost.exe
2180	spoolsv.exe
2180	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 3032	1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe	30
PID 1664 wrote to memory of 3032	1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe	30
PID 1664 wrote to memory of 3032	1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe	30
PID 1664 wrote to memory of 3032	1664	d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe	30
PID 3032 wrote to memory of 2688	3032	explorer.exe	31
PID 3032 wrote to memory of 2688	3032	explorer.exe	31
PID 3032 wrote to memory of 2688	3032	explorer.exe	31
PID 3032 wrote to memory of 2688	3032	explorer.exe	31
PID 2688 wrote to memory of 2796	2688	spoolsv.exe	32
PID 2688 wrote to memory of 2796	2688	spoolsv.exe	32
PID 2688 wrote to memory of 2796	2688	spoolsv.exe	32
PID 2688 wrote to memory of 2796	2688	spoolsv.exe	32
PID 2796 wrote to memory of 2180	2796	svchost.exe	33
PID 2796 wrote to memory of 2180	2796	svchost.exe	33
PID 2796 wrote to memory of 2180	2796	svchost.exe	33
PID 2796 wrote to memory of 2180	2796	svchost.exe	33
PID 3032 wrote to memory of 2764	3032	explorer.exe	35
PID 3032 wrote to memory of 2764	3032	explorer.exe	35
PID 3032 wrote to memory of 2764	3032	explorer.exe	35
PID 3032 wrote to memory of 2764	3032	explorer.exe	35
PID 2796 wrote to memory of 2824	2796	svchost.exe	36
PID 2796 wrote to memory of 2824	2796	svchost.exe	36
PID 2796 wrote to memory of 2824	2796	svchost.exe	36
PID 2796 wrote to memory of 2824	2796	svchost.exe	36
PID 2796 wrote to memory of 2128	2796	svchost.exe	39
PID 2796 wrote to memory of 2128	2796	svchost.exe	39
PID 2796 wrote to memory of 2128	2796	svchost.exe	39
PID 2796 wrote to memory of 2128	2796	svchost.exe	39
PID 2796 wrote to memory of 2132	2796	svchost.exe	41
PID 2796 wrote to memory of 2132	2796	svchost.exe	41
PID 2796 wrote to memory of 2132	2796	svchost.exe	41
PID 2796 wrote to memory of 2132	2796	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.exe
"C:\Users\Admin\AppData\Local\Temp\d15257a7d17d4b51d39176c066ff5d8e6f0a1095379fdac628b1b907bed89e9e.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:1664
- \??\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:3032
- - \??\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:2688
  - - \??\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:2796
    - - \??\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:2180
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:21 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2824
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:22 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2128
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:23 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2132
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2764

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
b62156058324ef7a857dd319b3c8e5aa

SHA1
9106c6baed0182ed88068fabf75a6d2799b31cdd

SHA256
7eb1a47bd63954ef58c21af3a7bc488dcbd04440dbcaa6c3981a0a357003bf55

SHA512
b15cf448073ecbcb9bc0e7db1cca6f1ed68ca0a1b752c7097e86dd6f90c61af09fdab837d7232bee1c5e61b1c6fa2a435d7fb0e58dfc95774a8ec8db0b20bae7

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

Filesize
135KB

MD5
72277343fda935cff632c3fd591d6981

SHA1
4d8c23171df0a7cdd523f07ceb59061e4d9a48c5

SHA256
8f600406b41138ec828dfb218565e61262bd80797590726222ca5036da6e5a7a

SHA512
30ccdd80fd26dd7c985dd3a5075d26fa6f7aa34c1ac28ea8587cd69e9a20050bd27b8e7958cd7453f62b65e19d517cca32f1c4242b813ce635257ff7f8de27e5

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
3228940d93ccf330af8c88928b499296

SHA1
56bf3b1a4c9115a36fc49cf574162df540d0c751

SHA256
745c7467a0f2245609e478269431e6361dd01a87d4b078dafdb7050dbcda6dfd

SHA512
ab03388b5ffc8f5dd0753e189da250227f09b93e75c51aa5df48faba5d008008b45114cafb3eef577dcba2a221e5a3184a8aaeebd49e56a5c7f5e2aebcdfa66d

Download Submit
memory/1664-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1664-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2180-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2688-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2796-36-0x00000000005D0000-0x00000000005EF000-memory.dmp

Filesize
124KB

Download
memory/2796-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2796-46-0x00000000005D0000-0x00000000005EF000-memory.dmp

Filesize
124KB

Download
memory/3032-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3032-44-0x00000000002E0000-0x00000000002FF000-memory.dmp

Filesize
124KB

Download