ca6cd06e03036493edfdb593f45a576ecfde3cc7294380b3e821f7314653d96d

General

Target

ca6cd06e03036493edfdb593f45a576ecfde3cc7294380b3e821f7314653d96d.xls
Size

70KB
MD5

7b2f5a9ea685391bb5a7f3fae5a0b7f3
SHA1

5a90e0868f7370765d7c47937001ba5666b2b832
SHA256

ca6cd06e03036493edfdb593f45a576ecfde3cc7294380b3e821f7314653d96d
SHA512

14a5f752e14b85017263b55d1dfa32065197d8b6768558443830106f278fe400edb54107448e6d17b1d9da1acec38c95ff3906c717243a9e450568da6ec71540
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8Eg0:uKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMh

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	4732	2428	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4708	2428	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2072	2428	regsvr32.exe	81

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
2428	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2428	EXCEL.EXE
2428	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE
2428	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 4732	2428	EXCEL.EXE	86
PID 2428 wrote to memory of 4732	2428	EXCEL.EXE	86
PID 2428 wrote to memory of 4708	2428	EXCEL.EXE	87
PID 2428 wrote to memory of 4708	2428	EXCEL.EXE	87
PID 2428 wrote to memory of 2072	2428	EXCEL.EXE	91
PID 2428 wrote to memory of 2072	2428	EXCEL.EXE	91

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ca6cd06e03036493edfdb593f45a576ecfde3cc7294380b3e821f7314653d96d.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:2428
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4732
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4708
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2072

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
3KB

MD5
3d5e68d6c9e61baef86d587e7ea9d5eb

SHA1
ab9db3da27e34d513b27be2186c5d6352c634bc3

SHA256
acc0619ee3c3e2a2cbb56488aca09fd2ae8edb10d1617308c833f86859e409fa

SHA512
977c85e3e1128b9b713b11dd0dd3216dc492ee1d3c5c5be25a975ad20ee5751a81e7eb7eb40e1e738c6ee152cb7dacde0e96393afcfc4b4402d0febcbe2c6616

Download Submit
memory/2428-11-0x00007FFEC5710000-0x00007FFEC5720000-memory.dmp

Filesize
64KB

Download
memory/2428-3-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/2428-12-0x00007FFEC5710000-0x00007FFEC5720000-memory.dmp

Filesize
64KB

Download
memory/2428-2-0x00007FFF07FAD000-0x00007FFF07FAE000-memory.dmp

Filesize
4KB

Download
memory/2428-0-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/2428-8-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-10-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-9-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-14-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-1-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/2428-5-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/2428-4-0x00007FFEC7F90000-0x00007FFEC7FA0000-memory.dmp

Filesize
64KB

Download
memory/2428-7-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-15-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-16-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-17-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-13-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-19-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-20-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-18-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-48-0x00007FFF07F10000-0x00007FFF08105000-memory.dmp

Filesize
2.0MB

Download
memory/2428-6-0x00007FFF07F10000-0x00007FFF08105000-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