13c13e1ae375a40db93efec6bb82439a799b5de40fcf42bdafe5038f488e2f29

General

Target

13c13e1ae375a40db93efec6bb82439a799b5de40fcf42bdafe5038f488e2f29.xls
Size

95KB
MD5

d059197c923939b0f4a237a723eb87fd
SHA1

5d733a9612087e328613c7d322bb67ddfb640294
SHA256

13c13e1ae375a40db93efec6bb82439a799b5de40fcf42bdafe5038f488e2f29
SHA512

6a4e5048c2531a84b627296ebd2756661b4a4ead6281d5622a7f118bba442ea6e5a8bc599ef76678fe0b12fa9c0aa2e24d7de0ed49159bbf50ebe65f8adab958

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	3716	3192	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3720	3192	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1340	3192	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3928	3192	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

3192 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3192 EXCEL.EXE
3192 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE
3192	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3192 wrote to memory of 3716	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 3716	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 3720	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 3720	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 1340	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 1340	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 3928	3192	EXCEL.EXE	regsvr32.exe
PID 3192 wrote to memory of 3928	3192	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\13c13e1ae375a40db93efec6bb82439a799b5de40fcf42bdafe5038f488e2f29.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:3192

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3716

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3720

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:1340

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3928

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/1340-268-0x0000000000000000-mapping.dmp

Download
memory/3192-311-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-117-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-118-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-119-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-128-0x00007FFDFF7B0000-0x00007FFDFF7C0000-memory.dmp

Filesize
64KB

Download
memory/3192-129-0x00007FFDFF7B0000-0x00007FFDFF7C0000-memory.dmp

Filesize
64KB

Download
memory/3192-116-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-313-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-312-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3192-310-0x00007FFE03070000-0x00007FFE03080000-memory.dmp

Filesize
64KB

Download
memory/3716-266-0x0000000000000000-mapping.dmp

Download
memory/3720-267-0x0000000000000000-mapping.dmp

Download
memory/3928-271-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads