d59e0bcd2e95d2914fceb2ef1919addeab952a975998ca7111a428b269ccb6bd

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 01:17

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General

Target

c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
Size

135KB
MD5

c2867b6bd29ffd8d2d5a81c5c654a4e0
SHA1

d8530c94319e46e91d1eb633fb76849b35496ac8
SHA256

d59e0bcd2e95d2914fceb2ef1919addeab952a975998ca7111a428b269ccb6bd
SHA512

6d4b89a4338408f0f50738168ec303ed0144ec2e9d06795d6d7dc2705b0d735aeb0924760fd16965dda513fbdc9e9c3fba3705f8afebbfdcdd44e2f27b255505
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbVHQ:UVqoCl/YgjxEufVU0TbTyDDaldQ

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
3020	explorer.exe
2356	spoolsv.exe
2716	svchost.exe
2844	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
3020	explorer.exe
2356	spoolsv.exe
2716	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	c2867b6bd29ffd8d2d5a81c5c654a4e0N.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c2867b6bd29ffd8d2d5a81c5c654a4e0N.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
1748	schtasks.exe
2908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
3020	explorer.exe
3020	explorer.exe
3020	explorer.exe
2716	svchost.exe
2716	svchost.exe
2716	svchost.exe
3020	explorer.exe
2716	svchost.exe
3020	explorer.exe
2716	svchost.exe
3020	explorer.exe
3020	explorer.exe
2716	svchost.exe
2716	svchost.exe
3020	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3020	explorer.exe
2716	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
3020	explorer.exe
3020	explorer.exe
2356	spoolsv.exe
2356	spoolsv.exe
2716	svchost.exe
2716	svchost.exe
2844	spoolsv.exe
2844	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 3020	1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe	30
PID 1680 wrote to memory of 3020	1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe	30
PID 1680 wrote to memory of 3020	1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe	30
PID 1680 wrote to memory of 3020	1680	c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe	30
PID 3020 wrote to memory of 2356	3020	explorer.exe	31
PID 3020 wrote to memory of 2356	3020	explorer.exe	31
PID 3020 wrote to memory of 2356	3020	explorer.exe	31
PID 3020 wrote to memory of 2356	3020	explorer.exe	31
PID 2356 wrote to memory of 2716	2356	spoolsv.exe	32
PID 2356 wrote to memory of 2716	2356	spoolsv.exe	32
PID 2356 wrote to memory of 2716	2356	spoolsv.exe	32
PID 2356 wrote to memory of 2716	2356	spoolsv.exe	32
PID 2716 wrote to memory of 2844	2716	svchost.exe	33
PID 2716 wrote to memory of 2844	2716	svchost.exe	33
PID 2716 wrote to memory of 2844	2716	svchost.exe	33
PID 2716 wrote to memory of 2844	2716	svchost.exe	33
PID 3020 wrote to memory of 2876	3020	explorer.exe	34
PID 3020 wrote to memory of 2876	3020	explorer.exe	34
PID 3020 wrote to memory of 2876	3020	explorer.exe	34
PID 3020 wrote to memory of 2876	3020	explorer.exe	34
PID 2716 wrote to memory of 2908	2716	svchost.exe	35
PID 2716 wrote to memory of 2908	2716	svchost.exe	35
PID 2716 wrote to memory of 2908	2716	svchost.exe	35
PID 2716 wrote to memory of 2908	2716	svchost.exe	35
PID 2716 wrote to memory of 1748	2716	svchost.exe	39
PID 2716 wrote to memory of 1748	2716	svchost.exe	39
PID 2716 wrote to memory of 1748	2716	svchost.exe	39
PID 2716 wrote to memory of 1748	2716	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\c2867b6bd29ffd8d2d5a81c5c654a4e0N.exe
"C:\Users\Admin\AppData\Local\Temp\c2867b6bd29ffd8d2d5a81c5c654a4e0N.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:1680
- \??\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:3020
- - \??\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:2356
  - - \??\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:2716
    - - \??\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:2844
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 01:19 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2908
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 01:20 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1748
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2876

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
c6c2c8d99a531201e4f9335b04b76c0d

SHA1
4a6936e8d472ec4a6e0a0e997a98daf76e1bba7b

SHA256
9bf1ca6503804f23a9bc1e2f5c22436c2d7cf2a26de763a7e7a2d9766a4f685f

SHA512
144e26daf5dbf1dcdf087fcf0311f07e7901a5b8adbbfe01cc3740cd99d1d3da25ce92b9f0e1947052dea128928d7e4a30a944e22ff1f94dc2f5363423916884

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

Filesize
135KB

MD5
b127db76cac0621c5a0d3bd53de6a892

SHA1
86a1d58b7a76c5985b734b3fb9a1bd347adf8d9e

SHA256
1375de73f74331613f2c3037f2243b509c18276243e57b7ac2991add443b7e0c

SHA512
770a8ef0e3d4e060818ac1c139646767df460745d72084bedec7c977569cfe865e38aeff4090e34dbe6ee16cf2f17ccab47258d97bc747a8a7bea912454f4fb5

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

Filesize
135KB

MD5
918fcdd4adc87853e5fc4052337f1dac

SHA1
cf531245e22c6227ee5b8a805c5243cf8781ba83

SHA256
8c6e4a98b7707885eee5850a8e4cde0c6e26465a8256aa4390a6eb4df57622b3

SHA512
8342ea3357223b76624a8195908540bd63a7e90859a62f1c4a629a4eb52f86a95cb916a5f551f3dd4b8a7ed671fefcbc0a66a471f457a2c93d67d58775f501d5

Download Submit
memory/1680-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1680-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2356-30-0x00000000003E0000-0x00000000003FF000-memory.dmp

Filesize
124KB

Download
memory/2356-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2716-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2716-45-0x0000000000300000-0x000000000031F000-memory.dmp

Filesize
124KB

Download
memory/2844-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3020-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download