ac00b820c100f8c14606906e504bab622dbc959df11675c39704157a8fc0b52f

General

Target

ac00b820c100f8c14606906e504bab622dbc959df11675c39704157a8fc0b52f.xls
Size

95KB
MD5

35baf6885c27ebdefec51792a9e58553
SHA1

c69337b18c5440284a49088f45345225ecbecabc
SHA256

ac00b820c100f8c14606906e504bab622dbc959df11675c39704157a8fc0b52f
SHA512

5bbc94fa7a5f387891b9100e318ce74705dd65c639ab98f3eb370ccb23032ff4c4970e41c8afb5c5503ba0bbc3749a85835e97a4583d5b44dbf19ef6ca7cf714

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	3320	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3792	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3804	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1548	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 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

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 3320	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3320	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3792	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3792	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3804	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3804	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 1548	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 1548	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\ac00b820c100f8c14606906e504bab622dbc959df11675c39704157a8fc0b52f.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:3320

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3792

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3804

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1548

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

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Downloads

memory/1548-271-0x0000000000000000-mapping.dmp

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

Filesize
64KB

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

Filesize
64KB

Download
memory/2356-116-0x00007FF8DFC30000-0x00007FF8DFC40000-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/2356-117-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-310-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-311-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-312-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/2356-313-0x00007FF8DFC30000-0x00007FF8DFC40000-memory.dmp

Filesize
64KB

Download
memory/3320-266-0x0000000000000000-mapping.dmp

Download
memory/3792-267-0x0000000000000000-mapping.dmp

Download
memory/3804-268-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads