c057f10a65a0c3cf518be21bd5558fc1cd5d0cb25c55d0e0948cfd874d06f634

General

Target

c057f10a65a0c3cf518be21bd5558fc1cd5d0cb25c55d0e0948cfd874d06f634.xls
Size

95KB
MD5

d57d06d84efc2b3e8c400bc7078d48fa
SHA1

d2421ee78ea68b2a6b8ce6e2422124784b3e2026
SHA256

c057f10a65a0c3cf518be21bd5558fc1cd5d0cb25c55d0e0948cfd874d06f634
SHA512

19791e901e3d5251f0908b524c3f9a5e988a31793e376d6371443b89ad0050a9147e371857b4b76322a78c3ed186df59fbb85d171ba0f3220806f7c1fa0b6f90

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	3896	4708	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5012	4708	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2528	4708	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5040	4708	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

4708 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4708 EXCEL.EXE
4708 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE
4708	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4708 wrote to memory of 3896	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 3896	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 5012	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 5012	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 2528	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 2528	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 5040	4708	EXCEL.EXE	regsvr32.exe
PID 4708 wrote to memory of 5040	4708	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\c057f10a65a0c3cf518be21bd5558fc1cd5d0cb25c55d0e0948cfd874d06f634.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:4708

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3896

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:5012

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:2528

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:5040

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/2528-269-0x0000000000000000-mapping.dmp

Download
memory/3896-267-0x0000000000000000-mapping.dmp

Download
memory/4708-117-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmp

Filesize
64KB

Download
memory/4708-118-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmp

Filesize
64KB

Download
memory/4708-119-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmp

Filesize
64KB

Download
memory/4708-120-0x00007FFEBF6A0000-0x00007FFEBF6B0000-memory.dmp

Filesize
64KB

Download
memory/4708-129-0x00007FFEBC780000-0x00007FFEBC790000-memory.dmp

Filesize
64KB

Download
memory/4708-130-0x00007FFEBC780000-0x00007FFEBC790000-memory.dmp

Filesize
64KB

Download
memory/5012-268-0x0000000000000000-mapping.dmp

Download
memory/5040-272-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads