91187e9779ac395705d552ebd33bbcd0792db6f91ea48ffd70cc58f8acf5e2f8

General

Target

91187e9779ac395705d552ebd33bbcd0792db6f91ea48ffd70cc58f8acf5e2f8.xls
Size

95KB
MD5

215b82a327426ce9ab58675dd520b8ec
SHA1

5dc157a3355e8877d1b8c384214ed0856888713c
SHA256

91187e9779ac395705d552ebd33bbcd0792db6f91ea48ffd70cc58f8acf5e2f8
SHA512

cd5bcf49c03013b9f64cb542899e2c0d14685173a411b37df550ff0965330cbc5cb68c7861d26dd63650a6a4349ddae5f04dfef7c89002606accd1cbe8b8b791

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	4160	2732	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4000	2732	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4036	2732	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3832	2732	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

2732 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE
2732	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2732 wrote to memory of 4160	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 4160	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 4000	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 4000	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 4036	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 4036	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 3832	2732	EXCEL.EXE	regsvr32.exe
PID 2732 wrote to memory of 3832	2732	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\91187e9779ac395705d552ebd33bbcd0792db6f91ea48ffd70cc58f8acf5e2f8.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2732

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4160

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4000

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4036

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3832

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/2732-118-0x00007FFC601A0000-0x00007FFC601B0000-memory.dmp

Filesize
64KB

Download
memory/2732-119-0x00007FFC601A0000-0x00007FFC601B0000-memory.dmp

Filesize
64KB

Download
memory/2732-120-0x00007FFC601A0000-0x00007FFC601B0000-memory.dmp

Filesize
64KB

Download
memory/2732-121-0x00007FFC601A0000-0x00007FFC601B0000-memory.dmp

Filesize
64KB

Download
memory/2732-130-0x00007FFC5CA30000-0x00007FFC5CA40000-memory.dmp

Filesize
64KB

Download
memory/2732-131-0x00007FFC5CA30000-0x00007FFC5CA40000-memory.dmp

Filesize
64KB

Download
memory/3832-265-0x0000000000000000-mapping.dmp

Download
memory/4000-260-0x0000000000000000-mapping.dmp

Download
memory/4036-262-0x0000000000000000-mapping.dmp

Download
memory/4160-258-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads