5cb9d010b17d6888ce0dcfc26ff6d8420d0c3239648728d3e99f302ea7a03f5d

General

Target

5cb9d010b17d6888ce0dcfc26ff6d8420d0c3239648728d3e99f302ea7a03f5d.xls
Size

95KB
MD5

a685f96e8607dbe06cfe99c405861506
SHA1

35d1ae2e1f3b777ed72c166c8e1a4405d5c1b3c6
SHA256

5cb9d010b17d6888ce0dcfc26ff6d8420d0c3239648728d3e99f302ea7a03f5d
SHA512

10719117b1870a3ca224b50dca30bee80dbb1c85ce81b278439bf20c615b00da9f7e7f92b7ab138b718fbd67b87f01f0d60d392845fe5a200d020f0b6313a1ef

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	3556	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3988	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4612	2356	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3932	2356	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

2356 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE
2356	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2356 wrote to memory of 3556	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3556	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3988	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3988	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 4612	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 4612	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3932	2356	EXCEL.EXE	regsvr32.exe
PID 2356 wrote to memory of 3932	2356	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\5cb9d010b17d6888ce0dcfc26ff6d8420d0c3239648728d3e99f302ea7a03f5d.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3556

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3988

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:4612

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:3932

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/2356-117-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmp

Filesize
64KB

Download
memory/2356-118-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmp

Filesize
64KB

Download
memory/2356-119-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmp

Filesize
64KB

Download
memory/2356-120-0x00007FF7CABB0000-0x00007FF7CABC0000-memory.dmp

Filesize
64KB

Download
memory/2356-129-0x00007FF7C7040000-0x00007FF7C7050000-memory.dmp

Filesize
64KB

Download
memory/2356-130-0x00007FF7C7040000-0x00007FF7C7050000-memory.dmp

Filesize
64KB

Download
memory/3556-259-0x0000000000000000-mapping.dmp

Download
memory/3932-264-0x0000000000000000-mapping.dmp

Download
memory/3988-260-0x0000000000000000-mapping.dmp

Download
memory/4612-261-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads