3fa809a99640c0bd20d00a7033982d4dae77ed2bda5dfa77501189a515eec217

General

Target

3fa809a99640c0bd20d00a7033982d4dae77ed2bda5dfa77501189a515eec217.xls
Size

95KB
MD5

0225e948ca4be97d8ce66e21b1837701
SHA1

b24ba5ac9583089b1b8f7d773692e26840b4236b
SHA256

3fa809a99640c0bd20d00a7033982d4dae77ed2bda5dfa77501189a515eec217
SHA512

8c57c039ecf2e0cb9a5f960b1eec73b0b154b91a3e2edd71669bec51ffbd6da15428072e732e6a5b8239b3e1a7f028202301868cde4ce0cf68c1bcc2c5948a43

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	3148	1000	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4180	1000	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3160	1000	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1396	1000	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

1000 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE
1000	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1000 wrote to memory of 3148	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 3148	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 4180	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 4180	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 3160	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 3160	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 1396	1000	EXCEL.EXE	regsvr32.exe
PID 1000 wrote to memory of 1396	1000	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\3fa809a99640c0bd20d00a7033982d4dae77ed2bda5dfa77501189a515eec217.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1000

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3148

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4180

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3160

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:1396

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/1000-118-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1000-119-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1000-120-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1000-121-0x00007FFB9BBA0000-0x00007FFB9BBB0000-memory.dmp

Filesize
64KB

Download
memory/1000-130-0x00007FFB98570000-0x00007FFB98580000-memory.dmp

Filesize
64KB

Download
memory/1000-131-0x00007FFB98570000-0x00007FFB98580000-memory.dmp

Filesize
64KB

Download
memory/1396-281-0x0000000000000000-mapping.dmp

Download
memory/3148-274-0x0000000000000000-mapping.dmp

Download
memory/3160-278-0x0000000000000000-mapping.dmp

Download
memory/4180-275-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads