a312a4121e1edcd258ffb1dc3733cfd9d400eb60dc593aea6a7adad52eefa935

General

Target

a312a4121e1edcd258ffb1dc3733cfd9d400eb60dc593aea6a7adad52eefa935.xls
Size

95KB
MD5

2fb0ad91dbde35c8f560f5be5fced115
SHA1

312232f3faa9a530e2da41874c9bad00cd4b063c
SHA256

a312a4121e1edcd258ffb1dc3733cfd9d400eb60dc593aea6a7adad52eefa935
SHA512

a2d7b5c3abf0c1a8e41bbd84ba33585011bb66d6e818505d7df3ee7d818460da4aca5a4cc03e573e02cff54b80508a00fc63d775bd109a9e92b1d31bf4441293

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	4072	492	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1384	492	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3852	492	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3768	492	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

492 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

492 EXCEL.EXE
492 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE
492	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 492 wrote to memory of 4072	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 4072	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 1384	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 1384	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 3852	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 3852	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 3768	492	EXCEL.EXE	regsvr32.exe
PID 492 wrote to memory of 3768	492	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\a312a4121e1edcd258ffb1dc3733cfd9d400eb60dc593aea6a7adad52eefa935.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:492

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
2⤵
- Process spawned unexpected child process
PID:4072

C:\Windows\System32\regsvr32.exe
C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
2⤵
- Process spawned unexpected child process
PID:1384

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:3768

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/492-311-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-117-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-118-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-119-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-128-0x00007FF9B3B90000-0x00007FF9B3BA0000-memory.dmp

Filesize
64KB

Download
memory/492-129-0x00007FF9B3B90000-0x00007FF9B3BA0000-memory.dmp

Filesize
64KB

Download
memory/492-313-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-312-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-116-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/492-310-0x00007FF9B6D60000-0x00007FF9B6D70000-memory.dmp

Filesize
64KB

Download
memory/1384-267-0x0000000000000000-mapping.dmp

Download
memory/3768-271-0x0000000000000000-mapping.dmp

Download
memory/3852-268-0x0000000000000000-mapping.dmp

Download
memory/4072-266-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads