4241f3bcecf9463dbbbee46aef19a3f30ff4dbf007f72f6a95faddc01347f6a0

General

Target

4241f3bcecf9463dbbbee46aef19a3f30ff4dbf007f72f6a95faddc01347f6a0.xls
Size

95KB
MD5

05e1f9ce9411920795bd995151060ccc
SHA1

f12242b254914ebceed41e71c5a977de9b1acd4a
SHA256

4241f3bcecf9463dbbbee46aef19a3f30ff4dbf007f72f6a95faddc01347f6a0
SHA512

cfc14065d3fa329f38960f3f19f3d14949dec6d5fefc1dab9ece4e4a71d2dd364c094e11010947bcae6856a2bd61094897c3281a1a59729740245fee77f418d4

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	1552	880	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3936	880	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	356	880	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3892	880	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

880 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

880 EXCEL.EXE
880 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE
880	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 880 wrote to memory of 1552	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 1552	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 3936	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 3936	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 356	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 356	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 3892	880	EXCEL.EXE	regsvr32.exe
PID 880 wrote to memory of 3892	880	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\4241f3bcecf9463dbbbee46aef19a3f30ff4dbf007f72f6a95faddc01347f6a0.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:880

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:1552

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3936

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:356

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3892

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/356-252-0x0000000000000000-mapping.dmp

Download
memory/880-293-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-117-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-118-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-119-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-128-0x00007FFCD5670000-0x00007FFCD5680000-memory.dmp

Filesize
64KB

Download
memory/880-129-0x00007FFCD5670000-0x00007FFCD5680000-memory.dmp

Filesize
64KB

Download
memory/880-116-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-295-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-294-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/880-292-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/1552-250-0x0000000000000000-mapping.dmp

Download
memory/3892-255-0x0000000000000000-mapping.dmp

Download
memory/3936-251-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads