102805a33ba473a3c876f8a71f056d0af3be69a36b99144e9cbded59c059c36b

General

Target

102805a33ba473a3c876f8a71f056d0af3be69a36b99144e9cbded59c059c36b.xls
Size

70KB
MD5

c53230982f7e92057a45a5b03aa0dd9c
SHA1

f28d8d2cd29e930756e4980422aecc8e56538e14
SHA256

102805a33ba473a3c876f8a71f056d0af3be69a36b99144e9cbded59c059c36b
SHA512

e9f579c69641bea3d50a8f0e1be543f7a5e2a4f6ab8b89e6f9e0e091430e6eb9f7598777c5b1a93bbd889132aa827c3bb056c39c05fcb553c2affe183ca2ad05
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8EgE:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMx

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://strachanclark.com/images/3gc4qCpSFYbBMDEC/

xlm40.dropper

https://synapse-archive.com/images/bKaMr/

xlm40.dropper

https://sumuvesa.com/wp-includes/rgL/

Signatures

Process spawned unexpected child process 3 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	3284	2648	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2076	2648	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3368	2648	regsvr32.exe	82

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
2648	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2648	EXCEL.EXE
2648	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE
2648	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2648 wrote to memory of 3284	2648	EXCEL.EXE	88
PID 2648 wrote to memory of 3284	2648	EXCEL.EXE	88
PID 2648 wrote to memory of 2076	2648	EXCEL.EXE	100
PID 2648 wrote to memory of 2076	2648	EXCEL.EXE	100
PID 2648 wrote to memory of 3368	2648	EXCEL.EXE	101
PID 2648 wrote to memory of 3368	2648	EXCEL.EXE	101

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\102805a33ba473a3c876f8a71f056d0af3be69a36b99144e9cbded59c059c36b.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3284
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2076
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2648-0-0x00007FFBFF66D000-0x00007FFBFF66E000-memory.dmp

Filesize
4KB

Download
memory/2648-1-0x00007FFBBF650000-0x00007FFBBF660000-memory.dmp

Filesize
64KB

Download
memory/2648-3-0x00007FFBBF650000-0x00007FFBBF660000-memory.dmp

Filesize
64KB

Download
memory/2648-2-0x00007FFBBF650000-0x00007FFBBF660000-memory.dmp

Filesize
64KB

Download
memory/2648-4-0x00007FFBBF650000-0x00007FFBBF660000-memory.dmp

Filesize
64KB

Download
memory/2648-5-0x00007FFBBF650000-0x00007FFBBF660000-memory.dmp

Filesize
64KB

Download
memory/2648-6-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-8-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-9-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-10-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-12-0x00007FFBBD490000-0x00007FFBBD4A0000-memory.dmp

Filesize
64KB

Download
memory/2648-11-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-13-0x00007FFBBD490000-0x00007FFBBD4A0000-memory.dmp

Filesize
64KB

Download
memory/2648-7-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-14-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-15-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-18-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-17-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-16-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-36-0x00007FFBFF66D000-0x00007FFBFF66E000-memory.dmp

Filesize
4KB

Download
memory/2648-37-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download
memory/2648-38-0x00007FFBFF5D0000-0x00007FFBFF7C5000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads