45c118767d45fa9aeb6671a5a345d388e33a3069af5e92d84785ac815e4937f0

General

Target

45c118767d45fa9aeb6671a5a345d388e33a3069af5e92d84785ac815e4937f0.xls
Size

95KB
MD5

4d75ee6b4576902a71be0f7df05633de
SHA1

d1ddffc69298707caf817e178e70d71dc801f4b1
SHA256

45c118767d45fa9aeb6671a5a345d388e33a3069af5e92d84785ac815e4937f0
SHA512

a0d45668a25cb515dcb9e4fb8f4ba194c72a0bf011687ef7d3239e5c28e40ebb1d6ba9c055c37d5e2f74aecf8909360d6e62c281a1f0d5f603c7e09f140a2c7d

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	3496	2440	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2012	2440	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4064	2440	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4760	2440	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2440 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE
2440	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2440 wrote to memory of 3496	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 3496	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 2012	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 2012	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 4064	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 4064	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 4760	2440	EXCEL.EXE	regsvr32.exe
PID 2440 wrote to memory of 4760	2440	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\45c118767d45fa9aeb6671a5a345d388e33a3069af5e92d84785ac815e4937f0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2440

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3496

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:2012

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4064

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:4760

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/2012-258-0x0000000000000000-mapping.dmp

Download
memory/2440-117-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/2440-118-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/2440-119-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/2440-120-0x00007FFF4F230000-0x00007FFF4F240000-memory.dmp

Filesize
64KB

Download
memory/2440-129-0x00007FFF4B9B0000-0x00007FFF4B9C0000-memory.dmp

Filesize
64KB

Download
memory/2440-130-0x00007FFF4B9B0000-0x00007FFF4B9C0000-memory.dmp

Filesize
64KB

Download
memory/3496-257-0x0000000000000000-mapping.dmp

Download
memory/4064-259-0x0000000000000000-mapping.dmp

Download
memory/4760-262-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads