ad3bcb65313043b1a43b8fb210f3a20a87df8a8145ed9a18b086d0859616caa2

Analysis

max time kernel
8s
max time network
10s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
23-10-2023 21:16

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General

Target

4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe
Size

766KB
MD5

97c79f53087fe9e29d9cb33c30d00333
SHA1

b65db348b65e13cd6669d71f293be4b21e2edec0
SHA256

4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869
SHA512

4c3ae99b5462b1c030343baa663d94500be40bd0cae14557e1c997ff63ee6966293f4e5e1e4967085ce61f1e132dcfb00baae5e54afbb99be9ae2f68e471eed1
SSDEEP

12288:65MUXQCYVScN3p+bOT8DOHQjsfku5JEO7ShNqc124tjsZlpfqreZKC08nxN:85A9D3pYOQeQjs8S2xTv2IoZldqrepnx

Score

7^/10

persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exesysten.exesysten.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation	systen.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation	systen.exe

Executes dropped EXE 3 IoCs

Processes:

systen.exesysten.exesysten.exe

pid process

2232 systen.exe
1104 systen.exe
3512 systen.exe

pid	process
2232	systen.exe
1104	systen.exe
3512	systen.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exesysten.exesysten.exesysten.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Norton = "C:\\Windows\\system32\\systen.exe"	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Norton = "C:\\Windows\\system32\\systen.exe"	systen.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Norton = "C:\\Windows\\system32\\systen.exe"	systen.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Norton = "C:\\Windows\\system32\\systen.exe"	systen.exe

Drops file in System32 directory 5 IoCs

Processes:

4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exesysten.exesysten.exesysten.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\systen.exe	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe
File created	C:\Windows\SysWOW64\systen.exe	systen.exe
File created	C:\Windows\SysWOW64\systen.exe	systen.exe
File created	C:\Windows\SysWOW64\systen.exe	systen.exe
File created	C:\Windows\SysWOW64\systen.exe	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exesysten.exesysten.exe

description	pid	process	target process
PID 5052 wrote to memory of 2232	5052	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe	systen.exe
PID 5052 wrote to memory of 2232	5052	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe	systen.exe
PID 5052 wrote to memory of 2232	5052	4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe	systen.exe
PID 2232 wrote to memory of 1104	2232	systen.exe	systen.exe
PID 2232 wrote to memory of 1104	2232	systen.exe	systen.exe
PID 2232 wrote to memory of 1104	2232	systen.exe	systen.exe
PID 1104 wrote to memory of 3512	1104	systen.exe	systen.exe
PID 1104 wrote to memory of 3512	1104	systen.exe	systen.exe
PID 1104 wrote to memory of 3512	1104	systen.exe	systen.exe

C:\Users\Admin\AppData\Local\Temp\4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe
"C:\Users\Admin\AppData\Local\Temp\4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Windows\SysWOW64\systen.exe
  "C:\Windows\system32\systen.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\SysWOW64\systen.exe
    "C:\Windows\system32\systen.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:1104
  - - C:\Windows\SysWOW64\systen.exe
      "C:\Windows\system32\systen.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      PID:3512
    - - C:\Windows\SysWOW64\systen.exe
        
        "C:\Windows\system32\systen.exe"
        5⤵
        
        PID:1832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\systen.exe

Filesize
766KB

MD5
97c79f53087fe9e29d9cb33c30d00333

SHA1
b65db348b65e13cd6669d71f293be4b21e2edec0

SHA256
4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869

SHA512
4c3ae99b5462b1c030343baa663d94500be40bd0cae14557e1c997ff63ee6966293f4e5e1e4967085ce61f1e132dcfb00baae5e54afbb99be9ae2f68e471eed1

Download Submit
C:\Windows\SysWOW64\systen.exe

Filesize
766KB

MD5
97c79f53087fe9e29d9cb33c30d00333

SHA1
b65db348b65e13cd6669d71f293be4b21e2edec0

SHA256
4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869

SHA512
4c3ae99b5462b1c030343baa663d94500be40bd0cae14557e1c997ff63ee6966293f4e5e1e4967085ce61f1e132dcfb00baae5e54afbb99be9ae2f68e471eed1

Download Submit
C:\Windows\SysWOW64\systen.exe

Filesize
766KB

MD5
97c79f53087fe9e29d9cb33c30d00333

SHA1
b65db348b65e13cd6669d71f293be4b21e2edec0

SHA256
4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869

SHA512
4c3ae99b5462b1c030343baa663d94500be40bd0cae14557e1c997ff63ee6966293f4e5e1e4967085ce61f1e132dcfb00baae5e54afbb99be9ae2f68e471eed1

Download Submit
C:\Windows\SysWOW64\systen.exe

Filesize
766KB

MD5
97c79f53087fe9e29d9cb33c30d00333

SHA1
b65db348b65e13cd6669d71f293be4b21e2edec0

SHA256
4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869

SHA512
4c3ae99b5462b1c030343baa663d94500be40bd0cae14557e1c997ff63ee6966293f4e5e1e4967085ce61f1e132dcfb00baae5e54afbb99be9ae2f68e471eed1

Download Submit
C:\Windows\SysWOW64\systen.exe

Filesize
192KB

MD5
340be6861e62bc30e2f837987ef565b6

SHA1
8029418886306afc26680990da45736630cb4ab0

SHA256
ac9b9c62a9b905a280b57b4ec28af340e165d0f0425acca7f22f3b50c0f9286c

SHA512
786db313b16b2298757e6b600fe29e18db51504f06448c7d78e61bcadbe69d4ce1a233df904165f12b88916404613a91f5eeeaba9f2ae128025a20375a03b8bd

Download Submit
C:\Windows\SysWOW64\systen.exe

Filesize
766KB

MD5
97c79f53087fe9e29d9cb33c30d00333

SHA1
b65db348b65e13cd6669d71f293be4b21e2edec0

SHA256
4b24d273019579ba3c1e0ad261954c0941d114aab802fa2d1fcb14dab9f3e869

SHA512
4c3ae99b5462b1c030343baa663d94500be40bd0cae14557e1c997ff63ee6966293f4e5e1e4967085ce61f1e132dcfb00baae5e54afbb99be9ae2f68e471eed1

Download Submit
memory/1104-20-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/1104-17-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/2232-12-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/2232-13-0x0000000002030000-0x0000000002031000-memory.dmp

Filesize
4KB

Download
memory/2232-16-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/3512-19-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/3512-21-0x00000000007B0000-0x00000000007B1000-memory.dmp

Filesize
4KB

Download
memory/5052-0-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/5052-14-0x0000000000400000-0x00000000004D3000-memory.dmp

Filesize
844KB

Download
memory/5052-1-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download