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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2916	1804	rundll32.exe	68

suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata: ET MALWARE W32/Emotet CnC Beacon 3
suricata

Blocklisted process makes network request 1 IoCs

flow	pid	Process
40	2820	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2916	rundll32.exe
3672	rundll32.exe

Drops file in System32 directory 1 IoCs

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

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

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

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

pid	Process
1804	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	rundll32.exe
2820	rundll32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1804	EXCEL.EXE
1804	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

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

description	pid	Process	procid_target
PID 1804 wrote to memory of 2916	1804	EXCEL.EXE	72
PID 1804 wrote to memory of 2916	1804	EXCEL.EXE	72
PID 1804 wrote to memory of 2916	1804	EXCEL.EXE	72
PID 2916 wrote to memory of 3672	2916	rundll32.exe	73
PID 2916 wrote to memory of 3672	2916	rundll32.exe	73
PID 2916 wrote to memory of 3672	2916	rundll32.exe	73
PID 3672 wrote to memory of 3220	3672	rundll32.exe	74
PID 3672 wrote to memory of 3220	3672	rundll32.exe	74
PID 3672 wrote to memory of 3220	3672	rundll32.exe	74
PID 3220 wrote to memory of 2820	3220	rundll32.exe	75
PID 3220 wrote to memory of 2820	3220	rundll32.exe	75
PID 3220 wrote to memory of 2820	3220	rundll32.exe	75

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

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

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads