ef6578644f3505bc3edac871c6aa67972655b692461064c9e66a8b76e75c68b3

General

Target

ef6578644f3505bc3edac871c6aa67972655b692461064c9e66a8b76e75c68b3.xls
Size

95KB
MD5

1f0458dd1159ca70fd29afabc75fa146
SHA1

8a7fb3782a3c5b6fb1fd72eed2c9fdda6b3d95f0
SHA256

ef6578644f3505bc3edac871c6aa67972655b692461064c9e66a8b76e75c68b3
SHA512

692e4f5fc640ed951ab6e47494a4e243db0faf005dbb99a45df466c0de5c3839575aa9ce5085379ad8d5751c789243db472a0d7375a361d1c2627b4cb3b80dab

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Signatures

Process spawned unexpected child process 4 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.exeregsvr32.exeregsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3204	892	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3764	892	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4280	892	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4320	892	regsvr32.exe	EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

pid process

892 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

892 EXCEL.EXE
892 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE
892	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 892 wrote to memory of 3204	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 3204	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 3764	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 3764	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 4280	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 4280	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 4320	892	EXCEL.EXE	regsvr32.exe
PID 892 wrote to memory of 4320	892	EXCEL.EXE	regsvr32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ef6578644f3505bc3edac871c6aa67972655b692461064c9e66a8b76e75c68b3.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:892

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3204

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3764

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4280

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4320

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/892-118-0x00007FFA60F60000-0x00007FFA60F70000-memory.dmp

Filesize
64KB

Download
memory/892-119-0x00007FFA60F60000-0x00007FFA60F70000-memory.dmp

Filesize
64KB

Download
memory/892-120-0x00007FFA60F60000-0x00007FFA60F70000-memory.dmp

Filesize
64KB

Download
memory/892-121-0x00007FFA60F60000-0x00007FFA60F70000-memory.dmp

Filesize
64KB

Download
memory/892-130-0x00007FFA5D8F0000-0x00007FFA5D900000-memory.dmp

Filesize
64KB

Download
memory/892-131-0x00007FFA5D8F0000-0x00007FFA5D900000-memory.dmp

Filesize
64KB

Download
memory/3204-268-0x0000000000000000-mapping.dmp

Download
memory/3764-269-0x0000000000000000-mapping.dmp

Download
memory/4280-270-0x0000000000000000-mapping.dmp

Download
memory/4320-273-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads