1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807

General

Target

1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807.xls
Size

93KB
MD5

148822097790346ec89d758b2eced4b0
SHA1

de091209e95114b411eef35a4195ae6168466c05
SHA256

1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807
SHA512

007bd00fc575d9a7ca7eeea9d6d73399561d5b726d0e265069f8184499079506525118aeba962f9b8850725203657aa3135eff722ff318e1f5a1ee4b9bcee9d5
SSDEEP

1536:ennnjmqnTKEQiZWVbrzQ7Igf7hkbA23gcfrbeWt2XKGJKA:QKwWVbrzQ7IgNkZhjyaIKA

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	2672	1684	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1824	1684	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4488	1684	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 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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\6FE65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1684 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\6FE65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1684 wrote to memory of 2672	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 2672	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 1824	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 1824	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 4488	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 4488	1684	EXCEL.EXE	cmd.exe
PID 2672 wrote to memory of 2256	2672	cmd.exe	attrib.exe
PID 2672 wrote to memory of 2256	2672	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2256 attrib.exe

pid	process
2256	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\1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807.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:1684

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:2672

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2256

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:1824

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:4488

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

Replay Monitor

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Downloads

memory/1684-138-0x00007FFA266C0000-0x00007FFA266D0000-memory.dmp

Filesize
64KB

Download
memory/1684-145-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-133-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-135-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-136-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-137-0x00007FFA266C0000-0x00007FFA266D0000-memory.dmp

Filesize
64KB

Download
memory/1684-134-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-147-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-132-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-146-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1684-144-0x00007FFA28EB0000-0x00007FFA28EC0000-memory.dmp

Filesize
64KB

Download
memory/1824-140-0x0000000000000000-mapping.dmp

Download
memory/2256-142-0x0000000000000000-mapping.dmp

Download
memory/2672-139-0x0000000000000000-mapping.dmp

Download
memory/4488-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads