1d1ad1c8891f7a98f40021080b59c7fb3095bdc5e216a7b169cab9a3b2dbaedc

General

Target

1d1ad1c8891f7a98f40021080b59c7fb3095bdc5e216a7b169cab9a3b2dbaedc.xls
Size

95KB
MD5

4a3bd73197ba53971617f789783993b7
SHA1

845407fccb070136cf6e22469cf5c9a7219d9ea0
SHA256

1d1ad1c8891f7a98f40021080b59c7fb3095bdc5e216a7b169cab9a3b2dbaedc
SHA512

74208240a0b41dd58b58d35876643f7e3d8f153e5a52a10eb87b328cbba2597a6a44dba6efa246b47b9d24c9ec521ddb14886c0272d162c2f4a02027d7b497f3

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	3608	4632	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3588	4632	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4484	4632	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4860	4632	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

4632 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4632 EXCEL.EXE
4632 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE
4632	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4632 wrote to memory of 3608	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 3608	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 3588	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 3588	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 4484	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 4484	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 4860	4632	EXCEL.EXE	regsvr32.exe
PID 4632 wrote to memory of 4860	4632	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\1d1ad1c8891f7a98f40021080b59c7fb3095bdc5e216a7b169cab9a3b2dbaedc.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:4632

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3608

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3588

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4484

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4860

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/3588-268-0x0000000000000000-mapping.dmp

Download
memory/3608-267-0x0000000000000000-mapping.dmp

Download
memory/4484-269-0x0000000000000000-mapping.dmp

Download
memory/4632-117-0x00007FFB94A70000-0x00007FFB94A80000-memory.dmp

Filesize
64KB

Download
memory/4632-118-0x00007FFB94A70000-0x00007FFB94A80000-memory.dmp

Filesize
64KB

Download
memory/4632-119-0x00007FFB94A70000-0x00007FFB94A80000-memory.dmp

Filesize
64KB

Download
memory/4632-120-0x00007FFB94A70000-0x00007FFB94A80000-memory.dmp

Filesize
64KB

Download
memory/4632-129-0x00007FFB918F0000-0x00007FFB91900000-memory.dmp

Filesize
64KB

Download
memory/4632-130-0x00007FFB918F0000-0x00007FFB91900000-memory.dmp

Filesize
64KB

Download
memory/4860-272-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads