f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141

Analysis

max time kernel
120s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/10/2024, 02:53

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
Size

1.3MB
MD5

ee519eedae6e74d761b3e99947987560
SHA1

a023d377da0d10b222639082e54658e5a44ff0e0
SHA256

f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141
SHA512

38d3098a3526483ba719a9c8432a2d51d6c8d509ac283d09acd6184068380dcfcfb5624dad367369840b52af6763fc8578505db2e58a4511863d1736a876b86c
SSDEEP

24576:mNEQeH/VzRhVesGjhPUffhxoKBE9QBS1kFBcYLDF:R/wjR6hjlS1kzfF

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
436	explorer.exe
2912	spoolsv.exe
1920	svchost.exe
2696	spoolsv.exe

Loads dropped DLL 4 IoCs

pid	Process
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
436	explorer.exe
2912	spoolsv.exe
1920	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

Suspicious use of NtSetInformationThreadHideFromDebugger 30 IoCs

pid	Process
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
436	explorer.exe
436	explorer.exe
2912	spoolsv.exe
1920	svchost.exe
2696	spoolsv.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.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	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.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
1572	schtasks.exe
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
1920	svchost.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe
1920	svchost.exe
436	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
436	explorer.exe
1920	svchost.exe

Suspicious use of SetWindowsHookEx 15 IoCs

pid	Process
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
436	explorer.exe
436	explorer.exe
436	explorer.exe
2912	spoolsv.exe
2912	spoolsv.exe
2912	spoolsv.exe
1920	svchost.exe
1920	svchost.exe
1920	svchost.exe
2696	spoolsv.exe
2696	spoolsv.exe
2696	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 436	1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe	30
PID 1640 wrote to memory of 436	1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe	30
PID 1640 wrote to memory of 436	1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe	30
PID 1640 wrote to memory of 436	1640	f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe	30
PID 436 wrote to memory of 2912	436	explorer.exe	31
PID 436 wrote to memory of 2912	436	explorer.exe	31
PID 436 wrote to memory of 2912	436	explorer.exe	31
PID 436 wrote to memory of 2912	436	explorer.exe	31
PID 2912 wrote to memory of 1920	2912	spoolsv.exe	32
PID 2912 wrote to memory of 1920	2912	spoolsv.exe	32
PID 2912 wrote to memory of 1920	2912	spoolsv.exe	32
PID 2912 wrote to memory of 1920	2912	spoolsv.exe	32
PID 1920 wrote to memory of 2696	1920	svchost.exe	33
PID 1920 wrote to memory of 2696	1920	svchost.exe	33
PID 1920 wrote to memory of 2696	1920	svchost.exe	33
PID 1920 wrote to memory of 2696	1920	svchost.exe	33
PID 436 wrote to memory of 2668	436	explorer.exe	34
PID 436 wrote to memory of 2668	436	explorer.exe	34
PID 436 wrote to memory of 2668	436	explorer.exe	34
PID 436 wrote to memory of 2668	436	explorer.exe	34
PID 1920 wrote to memory of 2740	1920	svchost.exe	35
PID 1920 wrote to memory of 2740	1920	svchost.exe	35
PID 1920 wrote to memory of 2740	1920	svchost.exe	35
PID 1920 wrote to memory of 2740	1920	svchost.exe	35
PID 1920 wrote to memory of 1572	1920	svchost.exe	38
PID 1920 wrote to memory of 1572	1920	svchost.exe	38
PID 1920 wrote to memory of 1572	1920	svchost.exe	38
PID 1920 wrote to memory of 1572	1920	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe
"C:\Users\Admin\AppData\Local\Temp\f27e220f0e069545cc6d36a0e3416b1bcf6421afd5f892313cb048f928f85141N.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640
- \??\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
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - 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:436
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2912
  - - \??\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
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1920
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of NtSetInformationThreadHideFromDebugger
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2696
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:55 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2740
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 02:56 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1572
- - C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe
    3⤵
    PID:2668

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

Loading Replay Monitor...

Downloads

C:\Windows\Resources\spoolsv.exe

Filesize
1.3MB

MD5
064ef6dc4e55bab011c9a18cea50b83b

SHA1
e14c81a415eadec0f41a83a1f84b39ebe9854956

SHA256
501f4ab3811e4930d160b10487340e79ada6cb5e85d445a5d42db45563d19180

SHA512
7ea3fee1435462ce07b498d6fba40179c62a423db739153aa7c900a3a96381e500515e0de8bee735b911de639524c3630ec261c0a73101caa791c89b4ff91812

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

Filesize
1.3MB

MD5
214a4f890fc058e13d14fc1c824adfc6

SHA1
9f1ea4c58efb066e53a72051e7158a5f1e2d0e80

SHA256
f18c628ae8a0dcc795c0acfdb8aed6c96be559ce63771f21baa68a730aeacedf

SHA512
36aa813ccc1781b2e4938b77511418a5e00df137a58ffe37e36581d87b3f694fd87772394f07b4c4b1b317a6cebeeb0493ab20a621f06b82743cbc24de7dee5d

Download Submit
\Windows\Resources\svchost.exe

Filesize
1.3MB

MD5
71f933e4b66c77674e57087b55c6a9fa

SHA1
f9efcc37ed8601ce0eb09b419dfa3809f4b9145d

SHA256
60724bf74a24e12d6749ed294de03e2e5179770645de646f5943620cda7e517b

SHA512
382e6832e67b65186a2e684ecc4e5ff8299e42d9c8e12ec99c5b0085bb1dc995c7174e935caa67815921d4c053509082b727d9d6bfcb4e5a04beac1a39d44e6d

Download Submit
memory/436-72-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-53-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-20-0x0000000003530000-0x00000000038B4000-memory.dmp

Filesize
3.5MB

Download
memory/436-76-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-60-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-62-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-74-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-58-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-70-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-68-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-64-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-66-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-54-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/436-11-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1640-52-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1640-0-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1640-35-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1640-1-0x00000000779E0000-0x00000000779E1000-memory.dmp

Filesize
4KB

Download
memory/1920-67-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-71-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-56-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-61-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-57-0x0000000003510000-0x0000000003894000-memory.dmp

Filesize
3.5MB

Download
memory/1920-63-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-55-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-65-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-77-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-75-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-36-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-69-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-43-0x0000000003510000-0x0000000003894000-memory.dmp

Filesize
3.5MB

Download
memory/1920-59-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/1920-73-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2696-44-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2696-50-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2912-33-0x0000000003660000-0x00000000039E4000-memory.dmp

Filesize
3.5MB

Download
memory/2912-49-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2912-23-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download