6bc0b9e3ea9ae0097f4ccb2c862b5f3244fa011b99c4707d5bfa2ff26bc20640

General

Target

6bc0b9e3ea9ae0097f4ccb2c862b5f3244fa011b99c4707d5bfa2ff26bc20640.xls
Size

95KB
MD5

1a695e79a21a39e1b8af27ca46d622af
SHA1

ed4c76b0f8e6050659f0b8cd7ba9e23d7bf3778e
SHA256

6bc0b9e3ea9ae0097f4ccb2c862b5f3244fa011b99c4707d5bfa2ff26bc20640
SHA512

ad277d301c82558e11f798cd8473080f49f993a3e7959849c9c273e1912cc03fb7c6e46221f3a80ae8c1e4b8aaac5c961635587a0e2ea33c99eb8bf84c77a7af

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	1584	1200	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2096	1200	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3672	1200	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2508	1200	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

1200 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1200 EXCEL.EXE
1200 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE
1200	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1200 wrote to memory of 1584	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 1584	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 2096	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 2096	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 3672	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 3672	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 2508	1200	EXCEL.EXE	regsvr32.exe
PID 1200 wrote to memory of 2508	1200	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\6bc0b9e3ea9ae0097f4ccb2c862b5f3244fa011b99c4707d5bfa2ff26bc20640.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:1200

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:1584

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:2096

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3672

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:2508

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1200-308-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-117-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-118-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-119-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-128-0x00007FFAC4750000-0x00007FFAC4760000-memory.dmp

Filesize
64KB

Download
memory/1200-129-0x00007FFAC4750000-0x00007FFAC4760000-memory.dmp

Filesize
64KB

Download
memory/1200-116-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-311-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-310-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1200-309-0x00007FFAC7680000-0x00007FFAC7690000-memory.dmp

Filesize
64KB

Download
memory/1584-266-0x0000000000000000-mapping.dmp

Download
memory/2096-267-0x0000000000000000-mapping.dmp

Download
memory/2508-271-0x0000000000000000-mapping.dmp

Download
memory/3672-268-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads