a468ba8981c2ffea9d4d3a0319fe71d110da71fa5f190b21ae52c331cf4bd503

General

Target

a468ba8981c2ffea9d4d3a0319fe71d110da71fa5f190b21ae52c331cf4bd503.xls
Size

95KB
MD5

922e580680b0af8e8630217f2e3a2cad
SHA1

d1b51dbfb8274316380324c2427b9fb7509e29d5
SHA256

a468ba8981c2ffea9d4d3a0319fe71d110da71fa5f190b21ae52c331cf4bd503
SHA512

52570efaa344a0a0176f057e71295618b6f125c2857f8643062b058c4fd534453ea8c82bdc1f680985fa5246a3ab435cc692e73c1cea84eedfc30e21219a2142

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	3316	1652	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4440	1652	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4964	1652	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3124	1652	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

1652 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1652 EXCEL.EXE
1652 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE
1652	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1652 wrote to memory of 3316	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 3316	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 4440	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 4440	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 4964	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 4964	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 3124	1652	EXCEL.EXE	regsvr32.exe
PID 1652 wrote to memory of 3124	1652	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\a468ba8981c2ffea9d4d3a0319fe71d110da71fa5f190b21ae52c331cf4bd503.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:1652

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3316

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4440

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4964

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3124

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/1652-117-0x00007FFA55030000-0x00007FFA55040000-memory.dmp

Filesize
64KB

Download
memory/1652-118-0x00007FFA55030000-0x00007FFA55040000-memory.dmp

Filesize
64KB

Download
memory/1652-119-0x00007FFA55030000-0x00007FFA55040000-memory.dmp

Filesize
64KB

Download
memory/1652-120-0x00007FFA55030000-0x00007FFA55040000-memory.dmp

Filesize
64KB

Download
memory/1652-129-0x00007FFA52440000-0x00007FFA52450000-memory.dmp

Filesize
64KB

Download
memory/1652-130-0x00007FFA52440000-0x00007FFA52450000-memory.dmp

Filesize
64KB

Download
memory/3124-272-0x0000000000000000-mapping.dmp

Download
memory/3316-267-0x0000000000000000-mapping.dmp

Download
memory/4440-268-0x0000000000000000-mapping.dmp

Download
memory/4964-269-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads