58a7ffd89c39bd355cf6e4548ab5817c14aef5abcd7aa9e5f5a01480928c967c

General

Target

58a7ffd89c39bd355cf6e4548ab5817c14aef5abcd7aa9e5f5a01480928c967c.xls
Size

95KB
MD5

8156cc8b77ffea4d7fe44f7b1a9b32c9
SHA1

1aa301c5a958eb76a5b498fa808fddb35569c191
SHA256

58a7ffd89c39bd355cf6e4548ab5817c14aef5abcd7aa9e5f5a01480928c967c
SHA512

e1d14567006205520d59b2131ca796978792d89bc76c9685920408e7e49fa26ee7aad6916d7a7ed52e4309ee4749d3b2add9efcf57858057e31acf5fe5410e33

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	1884	3948	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4568	3948	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3852	3948	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3328	3948	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

3948 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

3948 EXCEL.EXE
3948 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE
3948	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3948 wrote to memory of 1884	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 1884	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 4568	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 4568	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 3852	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 3852	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 3328	3948	EXCEL.EXE	regsvr32.exe
PID 3948 wrote to memory of 3328	3948	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\58a7ffd89c39bd355cf6e4548ab5817c14aef5abcd7aa9e5f5a01480928c967c.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:3948

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:1884

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4568

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3852

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3328

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/1884-258-0x0000000000000000-mapping.dmp

Download
memory/3328-263-0x0000000000000000-mapping.dmp

Download
memory/3852-260-0x0000000000000000-mapping.dmp

Download
memory/3948-117-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp

Filesize
64KB

Download
memory/3948-118-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp

Filesize
64KB

Download
memory/3948-119-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp

Filesize
64KB

Download
memory/3948-120-0x00007FFBCADE0000-0x00007FFBCADF0000-memory.dmp

Filesize
64KB

Download
memory/3948-129-0x00007FFBC74B0000-0x00007FFBC74C0000-memory.dmp

Filesize
64KB

Download
memory/3948-130-0x00007FFBC74B0000-0x00007FFBC74C0000-memory.dmp

Filesize
64KB

Download
memory/4568-259-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads