4d6bc8f7df3ef7c6c77fd6ed3aa6049ebf8de53e8cc28bd075c2a64df63687ac

General

Target
SecuriteInfo.com.Heur.24531.11135.xlsm
Size 83KB
Sample220113-d78qwsffam
SHA256 4d6bc8f7df3ef7c6c77fd6ed3aa6049ebf8de53e8cc28bd075c2a64df63687ac
MD5 044975993d3d6469945effd65243c685
SHA1 feb37faa797db79c77a5205d297b2e3b5179d9fc
SHA512 825b6c6b47c09658b0d469aa0322724a3eebc7c46ca7bf6ba695c50070f8ca136ce60162dd902bc86ab59180fe61e8eac28b3f6c04ee2edb9858687c7b08aff0
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://wateringcanreview.xyz/wp-includes/css/qky11a/

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	3720	4000	rundll32.exe	68

Loads dropped DLL 2 IoCs

pid	Process
3720	rundll32.exe
3660	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Sapkgqaq\ixdxkqis.oaa	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4000	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE
4000	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 3720	4000	EXCEL.EXE	71
PID 4000 wrote to memory of 3720	4000	EXCEL.EXE	71
PID 4000 wrote to memory of 3720	4000	EXCEL.EXE	71
PID 3720 wrote to memory of 3660	3720	rundll32.exe	74
PID 3720 wrote to memory of 3660	3720	rundll32.exe	74
PID 3720 wrote to memory of 3660	3720	rundll32.exe	74
PID 3660 wrote to memory of 2132	3660	rundll32.exe	75
PID 3660 wrote to memory of 2132	3660	rundll32.exe	75
PID 3660 wrote to memory of 2132	3660	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.24531.11135.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4000
- C:\Windows\SysWow64\rundll32.exe
  C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
  2⤵
  - Process spawned unexpected child process
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of WriteProcessMemory
    PID:3660
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Sapkgqaq\ixdxkqis.oaa",INlqGqQgj
      4⤵
      PID:2132

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/3660-274-0x00000000044B0000-0x00000000044D9000-memory.dmp

Download

memory/3720-273-0x0000000004480000-0x00000000044A9000-memory.dmp

Download

memory/4000-125-0x000001F7E6650000-0x000001F7E6652000-memory.dmp

Download

memory/4000-118-0x00007FFDDAB00000-0x00007FFDDAB10000-memory.dmp

Download

memory/4000-123-0x000001F7E6650000-0x000001F7E6652000-memory.dmp

Download

memory/4000-124-0x000001F7E6650000-0x000001F7E6652000-memory.dmp

Download

memory/4000-122-0x00007FFDDAB00000-0x00007FFDDAB10000-memory.dmp

Download

memory/4000-121-0x00007FFDDAB00000-0x00007FFDDAB10000-memory.dmp

Download

memory/4000-120-0x00007FFDDAB00000-0x00007FFDDAB10000-memory.dmp

Download

memory/4000-119-0x00007FFDDAB00000-0x00007FFDDAB10000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads