1db810dc4bea3b63644803fd2d7d4e93529000f68ee7273269415960c3b6f061

General

Target

1db810dc4bea3b63644803fd2d7d4e93529000f68ee7273269415960c3b6f061.xls
Size

95KB
MD5

50e57cdee074c57cc286db07d0f7fe52
SHA1

14fb11ebd14170729959caf3b2acb8044f2721f6
SHA256

1db810dc4bea3b63644803fd2d7d4e93529000f68ee7273269415960c3b6f061
SHA512

47966403ebd61d0c55a3d59a68d2ec27d4a15ff663053d9004fcdb16aa5c1126a7dd1900fed97ae4aed2cee4f5caa1505f74d9c25cbbf8c7290e446f4b882ad6

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	4772	4020	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4232	4020	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4088	4020	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4876	4020	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

4020 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4020 EXCEL.EXE
4020 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE
4020	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4020 wrote to memory of 4772	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4772	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4232	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4232	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4088	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4088	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4876	4020	EXCEL.EXE	regsvr32.exe
PID 4020 wrote to memory of 4876	4020	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\1db810dc4bea3b63644803fd2d7d4e93529000f68ee7273269415960c3b6f061.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:4020

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4772

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4232

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4088

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4876

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/4020-117-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/4020-118-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/4020-119-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/4020-120-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/4020-129-0x00007FFF4B9B0000-0x00007FFF4B9C0000-memory.dmp

Filesize
64KB

Download
memory/4020-130-0x00007FFF4B9B0000-0x00007FFF4B9C0000-memory.dmp

Filesize
64KB

Download
memory/4088-253-0x0000000000000000-mapping.dmp

Download
memory/4232-252-0x0000000000000000-mapping.dmp

Download
memory/4772-251-0x0000000000000000-mapping.dmp

Download
memory/4876-256-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads