eb49450e0a8d3a43358422c3b6e3968c3b77b8c0b6d05cda5abe35449018cc36

General

Target

eb49450e0a8d3a43358422c3b6e3968c3b77b8c0b6d05cda5abe35449018cc36.xls
Size

95KB
MD5

c8b02d2a35a32a07fb22601c316f1adc
SHA1

a429c28e95330c35ea8b82b9824d5451dd9d7f7e
SHA256

eb49450e0a8d3a43358422c3b6e3968c3b77b8c0b6d05cda5abe35449018cc36
SHA512

f0a6ffdfe6af689312ddb5dfca5c0393fe10c63b4f8b7709b6b44f580e9d32cd7bdde0bfa6b85f635175b24ff091dfb085f2336f529d0abfa2c54a6571dc5684

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	2684	3784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1172	3784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3876	3784	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	888	3784	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

3784 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3784 EXCEL.EXE
3784 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE
3784	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3784 wrote to memory of 2684	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 2684	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 1172	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 1172	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 3876	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 3876	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 888	3784	EXCEL.EXE	regsvr32.exe
PID 3784 wrote to memory of 888	3784	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\eb49450e0a8d3a43358422c3b6e3968c3b77b8c0b6d05cda5abe35449018cc36.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:3784

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2684

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1172

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3876

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:888

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/888-273-0x0000000000000000-mapping.dmp

Download
memory/1172-269-0x0000000000000000-mapping.dmp

Download
memory/2684-268-0x0000000000000000-mapping.dmp

Download
memory/3784-118-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-119-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-120-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-121-0x00007FFDC9060000-0x00007FFDC9070000-memory.dmp

Filesize
64KB

Download
memory/3784-130-0x00007FFDC5600000-0x00007FFDC5610000-memory.dmp

Filesize
64KB

Download
memory/3784-131-0x00007FFDC5600000-0x00007FFDC5610000-memory.dmp

Filesize
64KB

Download
memory/3876-270-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads