f814d4ee1c82ba7fc85bb7f3289a7de74538bae2c81f58cafe6384f7692ebc5e

General

Target

f814d4ee1c82ba7fc85bb7f3289a7de74538bae2c81f58cafe6384f7692ebc5e.xls
Size

70KB
MD5

bd30203cefaf268be8ed83e10ad40179
SHA1

4d351977148bfc1e1e441118ca5994ca18e96212
SHA256

f814d4ee1c82ba7fc85bb7f3289a7de74538bae2c81f58cafe6384f7692ebc5e
SHA512

c54051a29016d6af54abb1e322f1a0358cdf51a47190e2f35411ba379b03acfb8ba787c6507544a28875702553be2cf0e43d0c92839ae3ef0de1d30dde39e2ff
SSDEEP

1536:OhKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+e+hDcnTLiQrRTZws8Egk: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	1992	1528	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4032	1528	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4116	1528	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
1528	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1528	EXCEL.EXE
1528	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE
1528	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 1992	1528	EXCEL.EXE	87
PID 1528 wrote to memory of 1992	1528	EXCEL.EXE	87
PID 1528 wrote to memory of 4032	1528	EXCEL.EXE	88
PID 1528 wrote to memory of 4032	1528	EXCEL.EXE	88
PID 1528 wrote to memory of 4116	1528	EXCEL.EXE	94
PID 1528 wrote to memory of 4116	1528	EXCEL.EXE	94

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f814d4ee1c82ba7fc85bb7f3289a7de74538bae2c81f58cafe6384f7692ebc5e.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:1528
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1992
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4032
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\cusoa3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4116

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\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
f23004018bc1c93e9e4cec68754ad38d

SHA1
088390fd5e72e5e0e86c07ac27bdbfe4afa473ba

SHA256
7facefda25894bbb902bbca7d513d2c227effc957e72deb15feb92e5cd698215

SHA512
475170a0a46f83aab85bc653889bd6231a8f3f88b2327c188ece249302f8c0d6b696407c6934c9066429f82874015b8f007d73dfb9ea21468bcbb00910944f35

Download Submit
memory/1528-7-0x00007FFEF4BB0000-0x00007FFEF4BC0000-memory.dmp

Filesize
64KB

Download
memory/1528-0-0x00007FFEF4BB0000-0x00007FFEF4BC0000-memory.dmp

Filesize
64KB

Download
memory/1528-9-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-2-0x00007FFEF4BB0000-0x00007FFEF4BC0000-memory.dmp

Filesize
64KB

Download
memory/1528-6-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-5-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-8-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-10-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-11-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-14-0x00007FFEF2AF0000-0x00007FFEF2B00000-memory.dmp

Filesize
64KB

Download
memory/1528-4-0x00007FFEF4BB0000-0x00007FFEF4BC0000-memory.dmp

Filesize
64KB

Download
memory/1528-3-0x00007FFEF4BB0000-0x00007FFEF4BC0000-memory.dmp

Filesize
64KB

Download
memory/1528-12-0x00007FFEF2AF0000-0x00007FFEF2B00000-memory.dmp

Filesize
64KB

Download
memory/1528-15-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-16-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-19-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-18-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-17-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-13-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-47-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-48-0x00007FFF34BCD000-0x00007FFF34BCE000-memory.dmp

Filesize
4KB

Download
memory/1528-49-0x00007FFF34B30000-0x00007FFF34D25000-memory.dmp

Filesize
2.0MB

Download
memory/1528-1-0x00007FFF34BCD000-0x00007FFF34BCE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads