425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2

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
21-09-2024 22:35

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General

Target

425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
Size

135KB
MD5

1d1f9cba30fd8c13eec0a1f9497e91c0
SHA1

bb4de32cbd157fcaab4889feebf3262eaf3e33e3
SHA256

425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2
SHA512

db78913378a434c1c641e5724f44b615d5af0bcd1f34a92e7f5ed97aca75d3a839773badce5c84ee6b5c3604d80d91ce5622bf538c4ab62187bb811484d5be21
SSDEEP

1536:XfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbgcN:XVqoCl/YgjxEufVU0TbTyDDalXN

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
3036	explorer.exe
1476	spoolsv.exe
112	svchost.exe
768	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
3036	explorer.exe
1476	spoolsv.exe
112	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	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.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

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
2768	schtasks.exe
1632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
112	svchost.exe
3036	explorer.exe
3036	explorer.exe
3036	explorer.exe
112	svchost.exe
112	svchost.exe
3036	explorer.exe
112	svchost.exe
3036	explorer.exe
112	svchost.exe
3036	explorer.exe
112	svchost.exe
3036	explorer.exe
112	svchost.exe
3036	explorer.exe
112	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3036	explorer.exe
112	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
3036	explorer.exe
3036	explorer.exe
1476	spoolsv.exe
1476	spoolsv.exe
112	svchost.exe
112	svchost.exe
768	spoolsv.exe
768	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 3036	2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe	31
PID 2100 wrote to memory of 3036	2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe	31
PID 2100 wrote to memory of 3036	2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe	31
PID 2100 wrote to memory of 3036	2100	425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe	31
PID 3036 wrote to memory of 1476	3036	explorer.exe	32
PID 3036 wrote to memory of 1476	3036	explorer.exe	32
PID 3036 wrote to memory of 1476	3036	explorer.exe	32
PID 3036 wrote to memory of 1476	3036	explorer.exe	32
PID 1476 wrote to memory of 112	1476	spoolsv.exe	33
PID 1476 wrote to memory of 112	1476	spoolsv.exe	33
PID 1476 wrote to memory of 112	1476	spoolsv.exe	33
PID 1476 wrote to memory of 112	1476	spoolsv.exe	33
PID 112 wrote to memory of 768	112	svchost.exe	34
PID 112 wrote to memory of 768	112	svchost.exe	34
PID 112 wrote to memory of 768	112	svchost.exe	34
PID 112 wrote to memory of 768	112	svchost.exe	34
PID 3036 wrote to memory of 2772	3036	explorer.exe	35
PID 3036 wrote to memory of 2772	3036	explorer.exe	35
PID 3036 wrote to memory of 2772	3036	explorer.exe	35
PID 3036 wrote to memory of 2772	3036	explorer.exe	35
PID 112 wrote to memory of 2768	112	svchost.exe	36
PID 112 wrote to memory of 2768	112	svchost.exe	36
PID 112 wrote to memory of 2768	112	svchost.exe	36
PID 112 wrote to memory of 2768	112	svchost.exe	36
PID 112 wrote to memory of 1632	112	svchost.exe	39
PID 112 wrote to memory of 1632	112	svchost.exe	39
PID 112 wrote to memory of 1632	112	svchost.exe	39
PID 112 wrote to memory of 1632	112	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.exe
"C:\Users\Admin\AppData\Local\Temp\425ea814266e56db14373c04e1ce1983c3f8ad035256abeee67ef9b79720b1c2N.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:2100
- \??\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:3036
- - \??\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:1476
  - - \??\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:112
    - - \??\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:768
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:37 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2768
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 22:38 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1632
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2772

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
f3aa15337dce89efdf7fa17c811c153d

SHA1
3be8e29906baadfa05a62b8cd4886dc01b35df30

SHA256
3f76fe12df6ac7035ef9359b7ae971c2d6112ec9c8e1ce0925ed12e995dadfee

SHA512
6c9e63ccf7ebf93c562309e64eb50b14e0cc31b2d97ac40d9c886ba3a2fba57d74a93b8a184b2c9f4d4d880c36a118e45f0f782636bb8f9082984b0f3dc94a24

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

Filesize
135KB

MD5
7ada5d50f57fbb3f9e36e9fc957a647c

SHA1
6f5ee26c64aa5bf6f7a4e0f117499626b016c8bd

SHA256
bd9132aedc89b05ece13080fc3b76c26c51c4c8be482284267110d21bc50e645

SHA512
cf295f4143eeea3acb3bd80cfcb83854e57a010312af4e5e4a422fd4a223125e2e5f2435f116f10d9896c2ecbc3744fb5771acdd25c6743eeae4b4ca54b7f178

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
411d859d32a5d7e2ef281e445c2cd66b

SHA1
a94e854e50b10752e78300385c8ef5c37f959298

SHA256
addbfc71e95025920afe74c15cfd2669b338d74e699a0736c1b255a71a42fba8

SHA512
732396f7703798c84f6818877e74d29b4db389b5be270662e925cfd6f140de15c7bc1ba9f58f203e97d671a520df3bf4363a0d938c2366a4ec7987e5f2ac4fb3

Download Submit
memory/112-35-0x0000000000280000-0x000000000029F000-memory.dmp

Filesize
124KB

Download
memory/112-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/768-40-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1476-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2100-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2100-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3036-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download