f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 23:47

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General

Target

f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
Size

135KB
MD5

66243c710781c931e24bdc8cab4d3459
SHA1

e0a3ee46bb2c6981dfb1cc9257f8f12b04719f22
SHA256

f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e
SHA512

b7fe82eb80f562dcd46b1687dc1656674ac81cbe80501193ffa49bdc3a7478516a07f1693ffdb3ba1b6e7c2c8b6fcc8875aecc7eb2dd2c33f6bcee2596f9f5df
SSDEEP

1536:UfsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbV7a:UVqoCl/YgjxEufVU0TbTyDDalFa

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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
2948	explorer.exe
2796	spoolsv.exe
2932	svchost.exe
2784	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
2948	explorer.exe
2796	spoolsv.exe
2932	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	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.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 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2676	schtasks.exe
1412	schtasks.exe
2500	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2932	svchost.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2932	svchost.exe
2932	svchost.exe
2948	explorer.exe
2932	svchost.exe
2948	explorer.exe
2932	svchost.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe
2948	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2948	explorer.exe
2932	svchost.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
2948	explorer.exe
2948	explorer.exe
2796	spoolsv.exe
2796	spoolsv.exe
2932	svchost.exe
2932	svchost.exe
2784	spoolsv.exe
2784	spoolsv.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 488 wrote to memory of 2948	488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe	29
PID 488 wrote to memory of 2948	488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe	29
PID 488 wrote to memory of 2948	488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe	29
PID 488 wrote to memory of 2948	488	f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe	29
PID 2948 wrote to memory of 2796	2948	explorer.exe	30
PID 2948 wrote to memory of 2796	2948	explorer.exe	30
PID 2948 wrote to memory of 2796	2948	explorer.exe	30
PID 2948 wrote to memory of 2796	2948	explorer.exe	30
PID 2796 wrote to memory of 2932	2796	spoolsv.exe	31
PID 2796 wrote to memory of 2932	2796	spoolsv.exe	31
PID 2796 wrote to memory of 2932	2796	spoolsv.exe	31
PID 2796 wrote to memory of 2932	2796	spoolsv.exe	31
PID 2932 wrote to memory of 2784	2932	svchost.exe	32
PID 2932 wrote to memory of 2784	2932	svchost.exe	32
PID 2932 wrote to memory of 2784	2932	svchost.exe	32
PID 2932 wrote to memory of 2784	2932	svchost.exe	32
PID 2948 wrote to memory of 2972	2948	explorer.exe	33
PID 2948 wrote to memory of 2972	2948	explorer.exe	33
PID 2948 wrote to memory of 2972	2948	explorer.exe	33
PID 2948 wrote to memory of 2972	2948	explorer.exe	33
PID 2932 wrote to memory of 2676	2932	svchost.exe	34
PID 2932 wrote to memory of 2676	2932	svchost.exe	34
PID 2932 wrote to memory of 2676	2932	svchost.exe	34
PID 2932 wrote to memory of 2676	2932	svchost.exe	34
PID 2932 wrote to memory of 1412	2932	svchost.exe	37
PID 2932 wrote to memory of 1412	2932	svchost.exe	37
PID 2932 wrote to memory of 1412	2932	svchost.exe	37
PID 2932 wrote to memory of 1412	2932	svchost.exe	37
PID 2932 wrote to memory of 2500	2932	svchost.exe	39
PID 2932 wrote to memory of 2500	2932	svchost.exe	39
PID 2932 wrote to memory of 2500	2932	svchost.exe	39
PID 2932 wrote to memory of 2500	2932	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.exe
"C:\Users\Admin\AppData\Local\Temp\f94705eb405d00354dc181f058349670cdf915f6b1df36096ad89ac56480956e.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:488
- \??\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:2948
- - \??\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:2796
  - - \??\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:2932
    - - \??\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:2784
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:49 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2676
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:50 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1412
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:51 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2500
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2972

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

\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
29d77170fc55f5b69f4ce8839ffc6ed2

SHA1
d4d6f2363b8ae6bfbf80047edfb37a25c92e0f07

SHA256
c510cb494f67c739dad92847d4923f02e732851b06023a7de61747c2c3299eb2

SHA512
c5847b5233b9d12d4d997d1c0fffceeef7434a1aedfc4bcd40bb3df873207540227462266300f704df1ff10dd275307c467f30a508b91a21b30b823b7836e163

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
669296f6d2ef6f19cd13b674a493a4b7

SHA1
ec0b3c7b457efaa7c11dd12f37fbd4cd2b3f29c9

SHA256
1126b75cba15ed79f7d345432360e55bba4834974847985fd5be0486332374b5

SHA512
155c70b9cbe0128bd5fb7a7e0901835eb8103b2f1e144fe53f33e2b792f6295d020566da9efce9b7e3ce56ab274f9816427be35adba060b8f5388519b2bac12a

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
6a6356b49cdd9535b980a5fa2ec5347e

SHA1
421b37017cd2b047b7a243a5dbee9829bef8ebab

SHA256
95e0a8d729757b9339f4509b23b429e35c78501715d3211f27273349f1601182

SHA512
497ce6571ede9096e56a8908c1f57e4d8b44644c392173e607f89f195e3dc1fecfff61ad8cf40649aef6f8097f2526722964a88a793f15829682ca8c63959621

Download Submit
memory/488-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/488-8-0x00000000003B0000-0x00000000003CF000-memory.dmp

Filesize
124KB

Download
memory/488-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2784-41-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2796-29-0x0000000000390000-0x00000000003AF000-memory.dmp

Filesize
124KB

Download
memory/2796-42-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2932-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2932-46-0x0000000000370000-0x000000000038F000-memory.dmp

Filesize
124KB

Download
memory/2948-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download