f6ed677f31ff4017fa3f0a85907c869590448a5d3841aa365db43a6c2a0bf0b6

General

Target

f6ed677f31ff4017fa3f0a85907c869590448a5d3841aa365db43a6c2a0bf0b6.xls
Size

95KB
MD5

f8751a25278a04ab33899087efbf5572
SHA1

8c734c748fe89afc39392d642616e8bc2a5e1a37
SHA256

f6ed677f31ff4017fa3f0a85907c869590448a5d3841aa365db43a6c2a0bf0b6
SHA512

b9d805141fad0d7c2983d44026a1aa4a84a2da3450d26cdcb058cc4f499b9dcd736e10b7f1cf3f799050d865b4cdf92e8adf169d53534a30c2239d6aab9e76e5

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	2200	3472	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2276	3472	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2784	3472	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3788	3472	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

3472 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3472 EXCEL.EXE
3472 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE
3472	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3472 wrote to memory of 2200	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2200	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2276	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2276	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2784	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 2784	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3788	3472	EXCEL.EXE	regsvr32.exe
PID 3472 wrote to memory of 3788	3472	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\f6ed677f31ff4017fa3f0a85907c869590448a5d3841aa365db43a6c2a0bf0b6.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:3472

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:2200

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:2276

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:2784

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3788

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/2200-250-0x0000000000000000-mapping.dmp

Download
memory/2276-251-0x0000000000000000-mapping.dmp

Download
memory/2784-252-0x0000000000000000-mapping.dmp

Download
memory/3472-119-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-128-0x00007FF84CAB0000-0x00007FF84CAC0000-memory.dmp

Filesize
64KB

Download
memory/3472-129-0x00007FF84CAB0000-0x00007FF84CAC0000-memory.dmp

Filesize
64KB

Download
memory/3472-116-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-118-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-117-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-292-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-293-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-294-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3472-295-0x00007FF84FAA0000-0x00007FF84FAB0000-memory.dmp

Filesize
64KB

Download
memory/3788-255-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads