4e8ce0cc50fd08d99f52b88b9ab52e256e657f01b66a5de5a525c35ad1effbf7

General

Target

4e8ce0cc50fd08d99f52b88b9ab52e256e657f01b66a5de5a525c35ad1effbf7.xlsm
Size

83KB
MD5

92332bf878cb9442542c4231a6736305
SHA1

c0f132710e37fb501474b343400b34baac407192
SHA256

4e8ce0cc50fd08d99f52b88b9ab52e256e657f01b66a5de5a525c35ad1effbf7
SHA512

ab9a77b8256b0e3cc1da19e122a5b43e53e08628cfd2f4e86cfe17e3c7ab387a1cf514243e47c47bae61a50c33000f8c5558fd664dbf48486cb7e99b1d68041d

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.be-pu.com/4.hana/Y1XWpb1zWMRD/

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2916	1804	rundll32.exe	EXCEL.EXE

suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata
Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

40 2820 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

2916 rundll32.exe
3672 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Yanpdaqxmz\luly.dbo rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
40	2820	rundll32.exe

pid	process
2916	rundll32.exe
3672	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Yanpdaqxmz\luly.dbo	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1804 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

2820 rundll32.exe
2820 rundll32.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1804 EXCEL.EXE
1804 EXCEL.EXE

pid	process
2820	rundll32.exe
2820	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE
1804	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 1804 wrote to memory of 2916	1804	EXCEL.EXE	rundll32.exe
PID 1804 wrote to memory of 2916	1804	EXCEL.EXE	rundll32.exe
PID 1804 wrote to memory of 2916	1804	EXCEL.EXE	rundll32.exe
PID 2916 wrote to memory of 3672	2916	rundll32.exe	rundll32.exe
PID 2916 wrote to memory of 3672	2916	rundll32.exe	rundll32.exe
PID 2916 wrote to memory of 3672	2916	rundll32.exe	rundll32.exe
PID 3672 wrote to memory of 3220	3672	rundll32.exe	rundll32.exe
PID 3672 wrote to memory of 3220	3672	rundll32.exe	rundll32.exe
PID 3672 wrote to memory of 3220	3672	rundll32.exe	rundll32.exe
PID 3220 wrote to memory of 2820	3220	rundll32.exe	rundll32.exe
PID 3220 wrote to memory of 2820	3220	rundll32.exe	rundll32.exe
PID 3220 wrote to memory of 2820	3220	rundll32.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\4e8ce0cc50fd08d99f52b88b9ab52e256e657f01b66a5de5a525c35ad1effbf7.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\adi.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\adi.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:3672
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Yanpdaqxmz\luly.dbo",IyTLSsHZxRticT
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3220
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Yanpdaqxmz\luly.dbo",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:2820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\adi.ocx

MD5
8560319a7dbb727188ef941d7bed099d

SHA1
293028e8e9712f01352646854db47ff871577e2a

SHA256
e21b3f2601ce1eebe897f13cea721f54c791df623c28f3c11b4a10cdfcc0036c

SHA512
c5b0371d03aab1ca318b96e755e712c349fed13f434d36dcf5dac298603f91b7b4589e19d4cb41138b6368a4664c75f028d31a1880c83558e8156c5d5054accb

Download Submit
\Users\Admin\adi.ocx

MD5
8560319a7dbb727188ef941d7bed099d

SHA1
293028e8e9712f01352646854db47ff871577e2a

SHA256
e21b3f2601ce1eebe897f13cea721f54c791df623c28f3c11b4a10cdfcc0036c

SHA512
c5b0371d03aab1ca318b96e755e712c349fed13f434d36dcf5dac298603f91b7b4589e19d4cb41138b6368a4664c75f028d31a1880c83558e8156c5d5054accb

Download Submit
\Users\Admin\adi.ocx

MD5
8560319a7dbb727188ef941d7bed099d

SHA1
293028e8e9712f01352646854db47ff871577e2a

SHA256
e21b3f2601ce1eebe897f13cea721f54c791df623c28f3c11b4a10cdfcc0036c

SHA512
c5b0371d03aab1ca318b96e755e712c349fed13f434d36dcf5dac298603f91b7b4589e19d4cb41138b6368a4664c75f028d31a1880c83558e8156c5d5054accb

Download Submit
memory/1804-120-0x0000020A257E0000-0x0000020A257E2000-memory.dmp

Filesize
8KB

Download
memory/1804-116-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download
memory/1804-119-0x0000020A257E0000-0x0000020A257E2000-memory.dmp

Filesize
8KB

Download
memory/1804-121-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download
memory/1804-122-0x0000020A257E0000-0x0000020A257E2000-memory.dmp

Filesize
8KB

Download
memory/1804-128-0x00007FF7EF4D0000-0x00007FF7EF4E0000-memory.dmp

Filesize
64KB

Download
memory/1804-129-0x00007FF7EF4D0000-0x00007FF7EF4E0000-memory.dmp

Filesize
64KB

Download
memory/1804-115-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download
memory/1804-118-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download
memory/1804-117-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Filesize
64KB

Download
memory/2820-282-0x0000000000000000-mapping.dmp

Download
memory/2916-253-0x0000000000000000-mapping.dmp

Download
memory/3220-277-0x0000000000000000-mapping.dmp

Download
memory/3672-258-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads