9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9

General

Target

9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9.xls
Size

101KB
MD5

2f424af4c436a6d478c427dbe7ac300a
SHA1

dad41d786c8efbb59f53142b6575c7d0e9ba9dc5
SHA256

9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9
SHA512

f33002fa59bf675629181e43a99680d8b9d92b628352332236d0e3cbe4ddd981a2da887e1889683de582fd77c1bc23957a58927b747aa6760bfe9c51a91cb5e2
SSDEEP

1536:G777PJtT1V3WVbrzQ7lSzTkR62lGM88DcJtXwRtM2M/MW1adQ:gWVbrzQ7UTk9tjYJtXwQ5ksadQ

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.execmd.execmd.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	1132	4972	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3676	4972	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	364	4972	cmd.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\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\11175E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4972 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\11175E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE
4972	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4972 wrote to memory of 364	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 364	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 3676	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 3676	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 1132	4972	EXCEL.EXE	cmd.exe
PID 4972 wrote to memory of 1132	4972	EXCEL.EXE	cmd.exe
PID 364 wrote to memory of 2016	364	cmd.exe	attrib.exe
PID 364 wrote to memory of 2016	364	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2016 attrib.exe

pid	process
2016	attrib.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\9f6ecd64321955bc1fa80218a8edf38e80795b1718f2dcd6a04096dcca3c2ab9.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4972

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1132

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:3676

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:364

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2016

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

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/364-139-0x0000000000000000-mapping.dmp

Download
memory/1132-141-0x0000000000000000-mapping.dmp

Download
memory/2016-142-0x0000000000000000-mapping.dmp

Download
memory/3676-140-0x0000000000000000-mapping.dmp

Download
memory/4972-135-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-137-0x00007FFFA5560000-0x00007FFFA5570000-memory.dmp

Filesize
64KB

Download
memory/4972-138-0x00007FFFA5560000-0x00007FFFA5570000-memory.dmp

Filesize
64KB

Download
memory/4972-136-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-132-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-134-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-133-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-144-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-145-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-146-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download
memory/4972-147-0x00007FFFA7C90000-0x00007FFFA7CA0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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