a3d60499d344d47fc10e392c620ccbe51c4abd818af2424d54c079533409b258

General

Target

a3d60499d344d47fc10e392c620ccbe51c4abd818af2424d54c079533409b258.xls
Size

53KB
MD5

3c3c22f26dd58cd7764113c79ea14199
SHA1

3809214a67bc87d359d13bd9c6ad546f7f0ea3ba
SHA256

a3d60499d344d47fc10e392c620ccbe51c4abd818af2424d54c079533409b258
SHA512

167b9005626a7a53abe0ec3eca75a46d52240bf9359d35e5a0251871483ce96111c5893132641c383c90dfa1d50a4c84468e8d9663e223eb1bfb4033bc2f6a5f
SSDEEP

1536:vcTKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHpQvKf:v2Kpb8rGYrMPe3q7Q0XV5xtezEsi8/dS

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://colordropsgu.com/7DORfidiAu/BquoSU/

xlm40.dropper

https://ewingconsulting.com/buy/Ewj7oYjhYQ/

xlm40.dropper

https://ceramicalafortaleza.com/css/5DSBCCH0/

xlm40.dropper

http://thuybaohuy.com/wp-content/VxhkYwH7/

Signatures

Process spawned unexpected child process 4 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	2192	64	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3496	64	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1576	64	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3540	64	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
64	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
64	EXCEL.EXE
64	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE
64	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 64 wrote to memory of 2192	64	EXCEL.EXE	87
PID 64 wrote to memory of 2192	64	EXCEL.EXE	87
PID 64 wrote to memory of 3496	64	EXCEL.EXE	90
PID 64 wrote to memory of 3496	64	EXCEL.EXE	90
PID 64 wrote to memory of 1576	64	EXCEL.EXE	91
PID 64 wrote to memory of 1576	64	EXCEL.EXE	91
PID 64 wrote to memory of 3540	64	EXCEL.EXE	95
PID 64 wrote to memory of 3540	64	EXCEL.EXE	95

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a3d60499d344d47fc10e392c620ccbe51c4abd818af2424d54c079533409b258.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:64
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2192
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3496
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1576
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cui4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3540

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\cui2.ocx

Filesize
114B

MD5
e89f75f918dbdcee28604d4e09dd71d7

SHA1
f9d9055e9878723a12063b47d4a1a5f58c3eb1e9

SHA256
6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023

SHA512
8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0

Download Submit
memory/64-13-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-60-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-2-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp

Filesize
64KB

Download
memory/64-1-0x00007FFD6E98D000-0x00007FFD6E98E000-memory.dmp

Filesize
4KB

Download
memory/64-9-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-8-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-7-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-6-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-4-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp

Filesize
64KB

Download
memory/64-12-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-15-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-14-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-65-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-5-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp

Filesize
64KB

Download
memory/64-22-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-17-0x00007FFD2C550000-0x00007FFD2C560000-memory.dmp

Filesize
64KB

Download
memory/64-18-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-20-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-11-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-21-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-19-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-10-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-0-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp

Filesize
64KB

Download
memory/64-58-0x00007FFD6E98D000-0x00007FFD6E98E000-memory.dmp

Filesize
4KB

Download
memory/64-59-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-3-0x00007FFD2E970000-0x00007FFD2E980000-memory.dmp

Filesize
64KB

Download
memory/64-64-0x00007FFD6E8F0000-0x00007FFD6EAE5000-memory.dmp

Filesize
2.0MB

Download
memory/64-16-0x00007FFD2C550000-0x00007FFD2C560000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads