5dacfc365faf3c6f971fa8944f5bef1491b6bbf7f1d1be0ba254ce27929a3127

General

Target

5dacfc365faf3c6f971fa8944f5bef1491b6bbf7f1d1be0ba254ce27929a3127.xls
Size

95KB
MD5

e10ea640eceab2c1bf915c14178f0fba
SHA1

4c36e1cef4734a383c7687663d54d63b64f9b7e7
SHA256

5dacfc365faf3c6f971fa8944f5bef1491b6bbf7f1d1be0ba254ce27929a3127
SHA512

515d60907bba007e800f89f2595c557e7e60469d66ea7bfd4776472c4a43a3ef47a0f02409d773e3c93d6cf2876dd06afd7601ed1b15a0a4ac3dbe5aa5a9171a

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	3944	436	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3892	436	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3776	436	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	708	436	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

436 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

436 EXCEL.EXE
436 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE
436	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 436 wrote to memory of 3944	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 3944	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 3892	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 3892	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 3776	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 3776	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 708	436	EXCEL.EXE	regsvr32.exe
PID 436 wrote to memory of 708	436	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\5dacfc365faf3c6f971fa8944f5bef1491b6bbf7f1d1be0ba254ce27929a3127.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:436

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:3944

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:3892

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
2⤵
- Process spawned unexpected child process
PID:3776

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
2⤵
- Process spawned unexpected child process
PID:708

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/436-308-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-117-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-118-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-119-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-128-0x00007FFCD5670000-0x00007FFCD5680000-memory.dmp

Filesize
64KB

Download
memory/436-129-0x00007FFCD5670000-0x00007FFCD5680000-memory.dmp

Filesize
64KB

Download
memory/436-311-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-310-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-309-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/436-116-0x00007FFCD8AE0000-0x00007FFCD8AF0000-memory.dmp

Filesize
64KB

Download
memory/708-271-0x0000000000000000-mapping.dmp

Download
memory/3776-268-0x0000000000000000-mapping.dmp

Download
memory/3892-267-0x0000000000000000-mapping.dmp

Download
memory/3944-266-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads