2b2c53b9f5d0199f32990f47685470bfbc6b113d4c259b2b7c57a8396d15d200

General

Target
SecuriteInfo.com.Heur.23002.5017.xlsm
Size 83KB
Sample220112-gm2cvsbebl
SHA256 2b2c53b9f5d0199f32990f47685470bfbc6b113d4c259b2b7c57a8396d15d200
MD5 eec60712ee79077c57b2b105559367a5
SHA1 b4b083cba4066414f5fb1e22b1b3146f9cf26e42
SHA512 202458aa32a0b0c380b79390069ff9ce77601b9dd712320570d85914e64d95adce2b840f29ad4b65ea3480ecb9947a1b964d9ec585b11ad152ee8059be4c33f2
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	816	2740	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
45	1348	rundll32.exe

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
816	rundll32.exe
824	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Kmdescm\wsmzcvxqvwlprcg.wjo	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 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
2740	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1348	rundll32.exe
1348	rundll32.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE
2740	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 816	2740	EXCEL.EXE	72
PID 2740 wrote to memory of 816	2740	EXCEL.EXE	72
PID 2740 wrote to memory of 816	2740	EXCEL.EXE	72
PID 816 wrote to memory of 824	816	rundll32.exe	73
PID 816 wrote to memory of 824	816	rundll32.exe	73
PID 816 wrote to memory of 824	816	rundll32.exe	73
PID 824 wrote to memory of 1804	824	rundll32.exe	74
PID 824 wrote to memory of 1804	824	rundll32.exe	74
PID 824 wrote to memory of 1804	824	rundll32.exe	74
PID 1804 wrote to memory of 1348	1804	rundll32.exe	75
PID 1804 wrote to memory of 1348	1804	rundll32.exe	75
PID 1804 wrote to memory of 1348	1804	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.23002.5017.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2740
- 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:816
- - 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:824
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Kmdescm\wsmzcvxqvwlprcg.wjo",qBttcoIsLbhDP
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1804
    - - C:\Windows\SysWOW64\rundll32.exe
        
        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Kmdescm\wsmzcvxqvwlprcg.wjo",DllRegisterServer
        5⤵
        Blocklisted process makes network request
        Suspicious behavior: EnumeratesProcesses
        
        PID:1348

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/2740-118-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Download

memory/2740-127-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Download

memory/2740-121-0x000001C8D89E0000-0x000001C8D89E2000-memory.dmp

Download

memory/2740-120-0x000001C8D89E0000-0x000001C8D89E2000-memory.dmp

Download

memory/2740-119-0x000001C8D89E0000-0x000001C8D89E2000-memory.dmp

Download

memory/2740-115-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Download

memory/2740-117-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Download

memory/2740-116-0x00007FF7F2D00000-0x00007FF7F2D10000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads