792a7b8e75aa51f90c66ee711faf429dfe3220b038cc3725ee935083fcb60e0f

General

Target

792a7b8e75aa51f90c66ee711faf429dfe3220b038cc3725ee935083fcb60e0f.xlsm
Size

83KB
MD5

7a289586cef7787e334abefa7601508c
SHA1

f4d6bb8ffcd38e7b9f8d31c7a442f0388cfe5602
SHA256

792a7b8e75aa51f90c66ee711faf429dfe3220b038cc3725ee935083fcb60e0f
SHA512

d8b236deb1e722a3a724b587db0737fa2c9cf500817a32017300d6de7541e75a571b7813f0a78a4cad1d02af685ef6acf5522990b0372612de87edc0c4e00632

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://adi.iswks.com/assets/hO1v71pqfNN/

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	648	2668	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 2 IoCs

Processes:

rundll32.exe

flow pid process

43 3628 rundll32.exe
44 3628 rundll32.exe
Downloads MZ/PE file
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32.exe

pid process

648 rundll32.exe
1484 rundll32.exe
Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\Yqcmsjxn\ejptet.wye 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
43	3628	rundll32.exe
44	3628	rundll32.exe

pid	process
648	rundll32.exe
1484	rundll32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Yqcmsjxn\ejptet.wye	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

2668 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

3628 rundll32.exe
3628 rundll32.exe

pid	process
3628	rundll32.exe
3628	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE
2668	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXErundll32.exerundll32.exerundll32.exe

description	pid	process	target process
PID 2668 wrote to memory of 648	2668	EXCEL.EXE	rundll32.exe
PID 2668 wrote to memory of 648	2668	EXCEL.EXE	rundll32.exe
PID 2668 wrote to memory of 648	2668	EXCEL.EXE	rundll32.exe
PID 648 wrote to memory of 1484	648	rundll32.exe	rundll32.exe
PID 648 wrote to memory of 1484	648	rundll32.exe	rundll32.exe
PID 648 wrote to memory of 1484	648	rundll32.exe	rundll32.exe
PID 1484 wrote to memory of 3604	1484	rundll32.exe	rundll32.exe
PID 1484 wrote to memory of 3604	1484	rundll32.exe	rundll32.exe
PID 1484 wrote to memory of 3604	1484	rundll32.exe	rundll32.exe
PID 3604 wrote to memory of 3628	3604	rundll32.exe	rundll32.exe
PID 3604 wrote to memory of 3628	3604	rundll32.exe	rundll32.exe
PID 3604 wrote to memory of 3628	3604	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\792a7b8e75aa51f90c66ee711faf429dfe3220b038cc3725ee935083fcb60e0f.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\wxeu.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:648
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\wxeu.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:1484
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Yqcmsjxn\ejptet.wye",QwBPbetMDK
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3604
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Yqcmsjxn\ejptet.wye",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3628

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\wxeu.ocx

MD5
ba822b6a6a27731a6c39e2e456bb2b3a

SHA1
850fd9b2757ee6d43a12d6addc340faef6a59944

SHA256
c5eb8215f287597f8df5d9d1a53cdf68b15ab3c903b3fc23c92b5389ce461c84

SHA512
20a303cad5bcee825c99e962d14e1ecd1740333cc13706463594a2f4b7f5e556b0fb7ccf0f01c04b9a014e7dc6b33792e04d30ba142251812265752a621872c9

Download Submit
\Users\Admin\wxeu.ocx

MD5
ba822b6a6a27731a6c39e2e456bb2b3a

SHA1
850fd9b2757ee6d43a12d6addc340faef6a59944

SHA256
c5eb8215f287597f8df5d9d1a53cdf68b15ab3c903b3fc23c92b5389ce461c84

SHA512
20a303cad5bcee825c99e962d14e1ecd1740333cc13706463594a2f4b7f5e556b0fb7ccf0f01c04b9a014e7dc6b33792e04d30ba142251812265752a621872c9

Download Submit
\Users\Admin\wxeu.ocx

MD5
ba822b6a6a27731a6c39e2e456bb2b3a

SHA1
850fd9b2757ee6d43a12d6addc340faef6a59944

SHA256
c5eb8215f287597f8df5d9d1a53cdf68b15ab3c903b3fc23c92b5389ce461c84

SHA512
20a303cad5bcee825c99e962d14e1ecd1740333cc13706463594a2f4b7f5e556b0fb7ccf0f01c04b9a014e7dc6b33792e04d30ba142251812265752a621872c9

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memory/648-265-0x0000000000000000-mapping.dmp

Download
memory/1484-270-0x0000000000000000-mapping.dmp

Download
memory/2668-119-0x00000201193B0000-0x00000201193B2000-memory.dmp

Filesize
8KB

Download
memory/2668-121-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2668-122-0x00000201193B0000-0x00000201193B2000-memory.dmp

Filesize
8KB

Download
memory/2668-128-0x00007FF89A3C0000-0x00007FF89A3D0000-memory.dmp

Filesize
64KB

Download
memory/2668-129-0x00007FF89A3C0000-0x00007FF89A3D0000-memory.dmp

Filesize
64KB

Download
memory/2668-120-0x00000201193B0000-0x00000201193B2000-memory.dmp

Filesize
8KB

Download
memory/2668-115-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2668-118-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2668-117-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/2668-116-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp

Filesize
64KB

Download
memory/3604-283-0x0000000000000000-mapping.dmp

Download
memory/3628-286-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads