4def01e39bab035b5e4b96d06403ff859ae08ef96e2c4676e99389f308e8a539

General

Target

4def01e39bab035b5e4b96d06403ff859ae08ef96e2c4676e99389f308e8a539.xls
Size

95KB
MD5

c026bdb1877852ce1a77385cc0f62096
SHA1

b17d2e324d3e34e72fa4d0174ba3eca0ed559b23
SHA256

4def01e39bab035b5e4b96d06403ff859ae08ef96e2c4676e99389f308e8a539
SHA512

10b7fff49e8b53a2d34462d28d8ed811b5e8b5de4c81b050a1b367bd8049cebcca5b18d2d10c88e691a658026258c4b153f58a5a243785ed69076a95d8af6e2c

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	4400	2940	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3196	2940	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3448	2940	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5032	2940	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

2940 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

2940 EXCEL.EXE
2940 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2940 wrote to memory of 4400	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 4400	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 3196	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 3196	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 3448	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 3448	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 5032	2940	EXCEL.EXE	regsvr32.exe
PID 2940 wrote to memory of 5032	2940	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\4def01e39bab035b5e4b96d06403ff859ae08ef96e2c4676e99389f308e8a539.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:2940

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4400

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3196

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3448

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:5032

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/2940-114-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/2940-115-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/2940-116-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/2940-117-0x00007FFC64F50000-0x00007FFC64F60000-memory.dmp

Filesize
64KB

Download
memory/2940-126-0x00007FFC61C00000-0x00007FFC61C10000-memory.dmp

Filesize
64KB

Download
memory/2940-127-0x00007FFC61C00000-0x00007FFC61C10000-memory.dmp

Filesize
64KB

Download
memory/3196-249-0x0000000000000000-mapping.dmp

Download
memory/3448-250-0x0000000000000000-mapping.dmp

Download
memory/4400-248-0x0000000000000000-mapping.dmp

Download
memory/5032-253-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads