a204c133ac04a499a81762548942875d0319423cc77ad58c4acb4e6846718763

General

Target

a204c133ac04a499a81762548942875d0319423cc77ad58c4acb4e6846718763.xls
Size

95KB
MD5

6a75553a3db36f3dc3129d597603db23
SHA1

4f3c36a5729ad6355abebef0e5ce1e67f8bc6fa3
SHA256

a204c133ac04a499a81762548942875d0319423cc77ad58c4acb4e6846718763
SHA512

48b249c1c028f142e00a15e4caae63e1c6016ef4d4b36f4f18a123935d85ab784b977505c5a9897af3bf214642884599efb76af550c83b62548be363a96ddbbc

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	2868	1460	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3424	1460	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1184	1460	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3280	1460	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

1460 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1460 EXCEL.EXE
1460 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE
1460	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1460 wrote to memory of 2868	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 2868	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 3424	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 3424	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 1184	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 1184	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 3280	1460	EXCEL.EXE	regsvr32.exe
PID 1460 wrote to memory of 3280	1460	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\a204c133ac04a499a81762548942875d0319423cc77ad58c4acb4e6846718763.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:1460

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2868

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3424

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:1184

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3280

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/1184-268-0x0000000000000000-mapping.dmp

Download
memory/1460-309-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-117-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-118-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-119-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-128-0x00007FFE53B20000-0x00007FFE53B30000-memory.dmp

Filesize
64KB

Download
memory/1460-129-0x00007FFE53B20000-0x00007FFE53B30000-memory.dmp

Filesize
64KB

Download
memory/1460-116-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-310-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-311-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/1460-308-0x00007FFE57330000-0x00007FFE57340000-memory.dmp

Filesize
64KB

Download
memory/2868-266-0x0000000000000000-mapping.dmp

Download
memory/3280-271-0x0000000000000000-mapping.dmp

Download
memory/3424-267-0x0000000000000000-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