e55ce4bc7ca054665ac48b9640d2f0f3bc4a83af6c95b4019b28c4d49ba669b9

General

Target
SecuriteInfo.com.Heur.18407.4012.xlsm
Size 83KB
Sample220111-17cpsahhem
SHA256 e55ce4bc7ca054665ac48b9640d2f0f3bc4a83af6c95b4019b28c4d49ba669b9
MD5 b1d28c906ca04efe44cf0663a9523ae8
SHA1 1e87a32515d881cf06a85caf038e80dcbe68ac10
SHA512 a670dde654e1afb8b2f119099f6a91ac33502b39410bce4d492275e4651a12fbd27667aebc1a575e0e795a4bad49ce770ff72fae4bbfed3a343604fbb303834c
MD5 SHA1 SHA512

Score

10^/10

suricata

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://unifiedpharma.com/wp-admin/ildi5K2aTIrdvEobQ/

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	3920	3308	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
42	2852	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3920	rundll32.exe
3100	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Wrnyompaw\jjixfn.qgc	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3308	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2852	rundll32.exe
2852	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE
3308	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3308 wrote to memory of 3920	3308	EXCEL.EXE	72
PID 3308 wrote to memory of 3920	3308	EXCEL.EXE	72
PID 3308 wrote to memory of 3920	3308	EXCEL.EXE	72
PID 3920 wrote to memory of 3100	3920	rundll32.exe	73
PID 3920 wrote to memory of 3100	3920	rundll32.exe	73
PID 3920 wrote to memory of 3100	3920	rundll32.exe	73
PID 3100 wrote to memory of 408	3100	rundll32.exe	74
PID 3100 wrote to memory of 408	3100	rundll32.exe	74
PID 3100 wrote to memory of 408	3100	rundll32.exe	74
PID 408 wrote to memory of 2852	408	rundll32.exe	75
PID 408 wrote to memory of 2852	408	rundll32.exe	75
PID 408 wrote to memory of 2852	408	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\SecuriteInfo.com.Heur.18407.4012.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3308
- 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:3920
- - 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:3100
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Wrnyompaw\jjixfn.qgc",XWYj
      4⤵
      Suspicious use of WriteProcessMemory
      PID:408
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Wrnyompaw\jjixfn.qgc",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:2852

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3308-120-0x0000026C11700000-0x0000026C11702000-memory.dmp

Download

memory/3308-122-0x0000026C11700000-0x0000026C11702000-memory.dmp

Download

memory/3308-128-0x00007FFBCF620000-0x00007FFBCF630000-memory.dmp

Download

memory/3308-129-0x00007FFBCF620000-0x00007FFBCF630000-memory.dmp

Download

memory/3308-121-0x00007FFBD30C0000-0x00007FFBD30D0000-memory.dmp

Download

memory/3308-119-0x0000026C11700000-0x0000026C11702000-memory.dmp

Download

memory/3308-115-0x00007FFBD30C0000-0x00007FFBD30D0000-memory.dmp

Download

memory/3308-118-0x00007FFBD30C0000-0x00007FFBD30D0000-memory.dmp

Download

memory/3308-117-0x00007FFBD30C0000-0x00007FFBD30D0000-memory.dmp

Download

memory/3308-116-0x00007FFBD30C0000-0x00007FFBD30D0000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads