c2ddab3e04d60aef6cc2b227982e2701eeb4fb51f6a76c1f3047dffe536fccaa

General

Target

191188385_03360767.xlsm
Size

83KB
MD5

e985886873885ec5af8db326bbdc716a
SHA1

e07f7373e695a2ff4d5a373a37a7ef8acfeaa229
SHA256

c2ddab3e04d60aef6cc2b227982e2701eeb4fb51f6a76c1f3047dffe536fccaa
SHA512

ebd95ee67efeec682df439804513a59d7c1cf6bff0eee1bc715a5a0a83cd2beb8810eeabf4c1c089346984874a0f205de6221ee5b62e183c34a67b31d2d0ab2c

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

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

xlm40.dropper

http://cakemixturereview.xyz/wp-includes/U2ayYVCPRhWqERyw4/

xlm40.dropper

http://15.237.135.38/dza9hr/kjt6/

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	3780	3140	rundll32.exe	68

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3780	rundll32.exe
3828	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Lydqh\hwwhzmktb.mdd	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 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
3140	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE
3140	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3140 wrote to memory of 3780	3140	EXCEL.EXE	72
PID 3140 wrote to memory of 3780	3140	EXCEL.EXE	72
PID 3140 wrote to memory of 3780	3140	EXCEL.EXE	72
PID 3780 wrote to memory of 3828	3780	rundll32.exe	73
PID 3780 wrote to memory of 3828	3780	rundll32.exe	73
PID 3780 wrote to memory of 3828	3780	rundll32.exe	73
PID 3828 wrote to memory of 2928	3828	rundll32.exe	76
PID 3828 wrote to memory of 2928	3828	rundll32.exe	76
PID 3828 wrote to memory of 2928	3828	rundll32.exe	76

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\191188385_03360767.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3140
- 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:3780
- - 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:3828
  - - C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Lydqh\hwwhzmktb.mdd",LWCdVbUQY
      4⤵
      PID:2928

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/3140-119-0x000001FA095E0000-0x000001FA095E2000-memory.dmp

Filesize
8KB

Download
memory/3140-115-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/3140-121-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/3140-122-0x000001FA095E0000-0x000001FA095E2000-memory.dmp

Filesize
8KB

Download
memory/3140-128-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmp

Filesize
64KB

Download
memory/3140-129-0x00007FF9F7A00000-0x00007FF9F7A10000-memory.dmp

Filesize
64KB

Download
memory/3140-116-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/3140-120-0x000001FA095E0000-0x000001FA095E2000-memory.dmp

Filesize
8KB

Download
memory/3140-118-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/3140-117-0x00007FF9FB330000-0x00007FF9FB340000-memory.dmp

Filesize
64KB

Download
memory/3780-268-0x0000000003130000-0x0000000003159000-memory.dmp

Filesize
164KB

Download
memory/3828-269-0x00000000026C0000-0x000000000276E000-memory.dmp

Filesize
696KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads