b07b5b6f9ea5a7235bc91106928340b327059b83c876402a267304240b5083e8

General

Target

b07b5b6f9ea5a7235bc91106928340b327059b83c876402a267304240b5083e8.xls
Size

95KB
MD5

ab3649d03789f76ccf8442a24fb84aff
SHA1

4e60e789111fdcf09c2683212e89fe9eb5143266
SHA256

b07b5b6f9ea5a7235bc91106928340b327059b83c876402a267304240b5083e8
SHA512

665dee0c5ab94c2f2d6178b03ce2cdc5df6cb40711a456d8502e3b087c2124788995daf7dbd386cb140695d0dc766bf917291cc0966df0e09b1973edaee2be59

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	2780	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1236	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3984	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3796	2356	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 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

2356 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2356 EXCEL.EXE
2356 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2356 wrote to memory of 2780	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 2780	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 1236	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 1236	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3984	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3984	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3796	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3796	2356	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\b07b5b6f9ea5a7235bc91106928340b327059b83c876402a267304240b5083e8.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:2356

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2780

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1236

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3984

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3796

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/1236-251-0x0000000000000000-mapping.dmp

Download
memory/2356-293-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-117-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-118-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-119-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-128-0x00007FF8DC170000-0x00007FF8DC180000-memory.dmp

Filesize
64KB

Download
memory/2356-129-0x00007FF8DC170000-0x00007FF8DC180000-memory.dmp

Filesize
64KB

Download
memory/2356-116-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-295-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-294-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-292-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2780-250-0x0000000000000000-mapping.dmp

Download
memory/3796-255-0x0000000000000000-mapping.dmp

Download
memory/3984-252-0x0000000000000000-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