862f7841137b2b14666b68a8dc68b93965580cc237508af0739682dcb9b541f4

General

Target

862f7841137b2b14666b68a8dc68b93965580cc237508af0739682dcb9b541f4.xls
Size

95KB
MD5

1b940c5640bac1db6206a979b43637fa
SHA1

ae10927021cdc960c6768eb39785acf00889b173
SHA256

862f7841137b2b14666b68a8dc68b93965580cc237508af0739682dcb9b541f4
SHA512

de12f9f77f85cd20bd69137f9bfbc3c1b2398a235ae62336acbbc270c2e22618986dbe807c05659a37da59c46e808ed0da846af48544ef57b23fa8ff3985680d

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	4384	4680	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4820	4680	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	508	4680	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5112	4680	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

4680 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4680 EXCEL.EXE
4680 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE
4680	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4680 wrote to memory of 4384	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 4384	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 4820	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 4820	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 508	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 508	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 5112	4680	EXCEL.EXE	regsvr32.exe
PID 4680 wrote to memory of 5112	4680	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\862f7841137b2b14666b68a8dc68b93965580cc237508af0739682dcb9b541f4.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:4680

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4384

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:4820

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:508

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:5112

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/508-253-0x0000000000000000-mapping.dmp

Download
memory/4384-251-0x0000000000000000-mapping.dmp

Download
memory/4680-117-0x00007FFD41F90000-0x00007FFD41FA0000-memory.dmp

Filesize
64KB

Download
memory/4680-118-0x00007FFD41F90000-0x00007FFD41FA0000-memory.dmp

Filesize
64KB

Download
memory/4680-119-0x00007FFD41F90000-0x00007FFD41FA0000-memory.dmp

Filesize
64KB

Download
memory/4680-120-0x00007FFD41F90000-0x00007FFD41FA0000-memory.dmp

Filesize
64KB

Download
memory/4680-129-0x00007FFD3F440000-0x00007FFD3F450000-memory.dmp

Filesize
64KB

Download
memory/4680-130-0x00007FFD3F440000-0x00007FFD3F450000-memory.dmp

Filesize
64KB

Download
memory/4820-252-0x0000000000000000-mapping.dmp

Download
memory/5112-256-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads