fee63d184b4f72c5fdc678d786214be5361b7f6a2daa4be6d6947cc99b6ea9dd

General

Target
913636833f9374397ae740960fba067e.xls
Size 113KB
Sample220112-de16caahgp
SHA256 fee63d184b4f72c5fdc678d786214be5361b7f6a2daa4be6d6947cc99b6ea9dd
MD5 913636833f9374397ae740960fba067e
SHA1 37366d37028bf8786e3968557ee06f22b975fd86
SHA512 73f7cc2a034dfe479822ebf7043f5c84c5439fe44f843a430632dd7ff91c3c2de582ef68b50dfa1e0a74aca91d9d9d268480c214091fc61eb69753a8c4cc1a30
MD5 SHA1 SHA512

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://ordinateur.ogivart.us/editor/Qpo7OAOnbe/

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	3028	2504	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
44	3736	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3028	rundll32.exe
3200	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Zqjkcfmaupiht\sasfwb.pig	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
2504	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3736	rundll32.exe
3736	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE
2504	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 3028	2504	EXCEL.EXE	72
PID 2504 wrote to memory of 3028	2504	EXCEL.EXE	72
PID 2504 wrote to memory of 3028	2504	EXCEL.EXE	72
PID 3028 wrote to memory of 3200	3028	rundll32.exe	73
PID 3028 wrote to memory of 3200	3028	rundll32.exe	73
PID 3028 wrote to memory of 3200	3028	rundll32.exe	73
PID 3200 wrote to memory of 3896	3200	rundll32.exe	74
PID 3200 wrote to memory of 3896	3200	rundll32.exe	74
PID 3200 wrote to memory of 3896	3200	rundll32.exe	74

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\913636833f9374397ae740960fba067e.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\sun.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\sun.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:3200
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zqjkcfmaupiht\sasfwb.pig",JsFqVdg
      4⤵
      PID:3896
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Zqjkcfmaupiht\sasfwb.pig",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:3736

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/2504-119-0x00007FFB83070000-0x00007FFB83080000-memory.dmp

Download

memory/2504-115-0x00007FFB83070000-0x00007FFB83080000-memory.dmp

Download

memory/2504-121-0x00000292F7900000-0x00000292F7902000-memory.dmp

Download

memory/2504-120-0x00000292F7900000-0x00000292F7902000-memory.dmp

Download

memory/2504-122-0x00000292F7900000-0x00000292F7902000-memory.dmp

Download

memory/2504-128-0x00007FFB7FCD0000-0x00007FFB7FCE0000-memory.dmp

Download

memory/2504-129-0x00007FFB7FCD0000-0x00007FFB7FCE0000-memory.dmp

Download

memory/2504-118-0x00007FFB83070000-0x00007FFB83080000-memory.dmp

Download

memory/2504-117-0x00007FFB83070000-0x00007FFB83080000-memory.dmp

Download

memory/2504-116-0x00007FFB83070000-0x00007FFB83080000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads