dbac0525cbbbe1bcd566cf2b8cde307e86f8d59edbd9f3e0b4d31d805d260de1

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 20:51

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General

Target

6ad1a1302253375fcd6c7380f814f620N.exe
Size

206KB
MD5

6ad1a1302253375fcd6c7380f814f620
SHA1

e8c64500415bf77650034bd8c28fbf7813629be5
SHA256

dbac0525cbbbe1bcd566cf2b8cde307e86f8d59edbd9f3e0b4d31d805d260de1
SHA512

0ede8a0c5cb66ff1d198ccf095cab9831041aaa79219924fe88448f7a0b9de4c7a451062a8ba1febf5ea5b75dbfd4107a2c7ce7dce0bb038b9a2cf11d8eeaa09
SSDEEP

1536:/fsEqouTRcG/Mzvgf7xEuvnXNTRdUzwTekUOisZ1yDDajtXbJdIr:/VqoCl/YgjxEufVU0TbTyDDalbs

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
1700	explorer.exe
2140	spoolsv.exe
2700	svchost.exe
2864	spoolsv.exe

Loads dropped DLL 8 IoCs

pid	Process
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
1700	explorer.exe
1700	explorer.exe
2140	spoolsv.exe
2140	spoolsv.exe
2700	svchost.exe
2700	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"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
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

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	6ad1a1302253375fcd6c7380f814f620N.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	6ad1a1302253375fcd6c7380f814f620N.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2840	schtasks.exe
2500	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
1700	explorer.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
2700	svchost.exe
1700	explorer.exe
1700	explorer.exe
2700	svchost.exe
2700	svchost.exe
1700	explorer.exe
1700	explorer.exe
2700	svchost.exe
1700	explorer.exe
2700	svchost.exe
1700	explorer.exe
2700	svchost.exe
2700	svchost.exe
1700	explorer.exe
2700	svchost.exe
1700	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2700	svchost.exe
1700	explorer.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
2396	6ad1a1302253375fcd6c7380f814f620N.exe
2396	6ad1a1302253375fcd6c7380f814f620N.exe
1700	explorer.exe
1700	explorer.exe
2140	spoolsv.exe
2140	spoolsv.exe
2700	svchost.exe
2700	svchost.exe
2864	spoolsv.exe
2864	spoolsv.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 1700	2396	6ad1a1302253375fcd6c7380f814f620N.exe	30
PID 2396 wrote to memory of 1700	2396	6ad1a1302253375fcd6c7380f814f620N.exe	30
PID 2396 wrote to memory of 1700	2396	6ad1a1302253375fcd6c7380f814f620N.exe	30
PID 2396 wrote to memory of 1700	2396	6ad1a1302253375fcd6c7380f814f620N.exe	30
PID 1700 wrote to memory of 2140	1700	explorer.exe	31
PID 1700 wrote to memory of 2140	1700	explorer.exe	31
PID 1700 wrote to memory of 2140	1700	explorer.exe	31
PID 1700 wrote to memory of 2140	1700	explorer.exe	31
PID 2140 wrote to memory of 2700	2140	spoolsv.exe	32
PID 2140 wrote to memory of 2700	2140	spoolsv.exe	32
PID 2140 wrote to memory of 2700	2140	spoolsv.exe	32
PID 2140 wrote to memory of 2700	2140	spoolsv.exe	32
PID 2700 wrote to memory of 2864	2700	svchost.exe	33
PID 2700 wrote to memory of 2864	2700	svchost.exe	33
PID 2700 wrote to memory of 2864	2700	svchost.exe	33
PID 2700 wrote to memory of 2864	2700	svchost.exe	33
PID 1700 wrote to memory of 2756	1700	explorer.exe	34
PID 1700 wrote to memory of 2756	1700	explorer.exe	34
PID 1700 wrote to memory of 2756	1700	explorer.exe	34
PID 1700 wrote to memory of 2756	1700	explorer.exe	34
PID 2700 wrote to memory of 2840	2700	svchost.exe	35
PID 2700 wrote to memory of 2840	2700	svchost.exe	35
PID 2700 wrote to memory of 2840	2700	svchost.exe	35
PID 2700 wrote to memory of 2840	2700	svchost.exe	35
PID 2700 wrote to memory of 2500	2700	svchost.exe	39
PID 2700 wrote to memory of 2500	2700	svchost.exe	39
PID 2700 wrote to memory of 2500	2700	svchost.exe	39
PID 2700 wrote to memory of 2500	2700	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\6ad1a1302253375fcd6c7380f814f620N.exe
"C:\Users\Admin\AppData\Local\Temp\6ad1a1302253375fcd6c7380f814f620N.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:2396
- \??\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:1700
- - \??\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:2140
  - - \??\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:2700
    - - \??\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:2864
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:53 /f
        5⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2840
    - - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:54 /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:2756

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
206KB

MD5
05a7383c8ab6ecee6abbcfa4ce637608

SHA1
e045662d7872a02d2214a8b2891d9c4c32eff723

SHA256
d8ce10cda3f7e79d469bccc325ae49d57739f166f66bee20892e395252b77fe5

SHA512
1d3f6fbda00044e1ac87dcf1891dc5d5fa4faf224a916db77089ae8a09c2770a5ffb52edab71edb9d8185386c1aaa560ebbf9b0507f4e3eb8062da2d261364df

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
206KB

MD5
43b7064e78c94bc0d826388e47299d29

SHA1
a2e19a701be08ac8ba5ca6dce8eadfe012cbbc9d

SHA256
92c232edd9b9ee6348ba623a8f83df2d2c38083e8814c43c9c7640db1e963f2b

SHA512
c9cb75e5c8de7462c5ec4f5923d9f3b4c9a9f86618a5cffdc6350f25043d600ae27df92124823671f6747ec85b0914092563e8ac056f6c7b676b8fdd7ccdb686

Download Submit
\Windows\Resources\svchost.exe

Filesize
206KB

MD5
a6a32ae6e5fed1365f261446dbfaa405

SHA1
d719920d6fbbdd2031225d85b2e8ea3c3553e5ad

SHA256
b127e2d24215857a8bce01619e796ee9711dd650969768c975b29dd1c24ca163

SHA512
925e544fe1295eaef32f9b53059725c62dbd8df82a725ca38247c88087bd856a875bd1129000fd78a17e9bb662d1460e355149b03e726087b60251b730e54e7f

Download Submit
memory/1700-56-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2140-54-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2140-40-0x0000000000290000-0x00000000002BF000-memory.dmp

Filesize
188KB

Download
memory/2396-13-0x00000000023A0000-0x00000000023CF000-memory.dmp

Filesize
188KB

Download
memory/2396-0-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2396-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2396-14-0x00000000023A0000-0x00000000023CF000-memory.dmp

Filesize
188KB

Download
memory/2700-49-0x0000000000430000-0x000000000045F000-memory.dmp

Filesize
188KB

Download
memory/2700-57-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2864-53-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download