442b24a6eab91d5ba3c3322290f1c22ee293f862dafafd452f935e08738d08ca

General

Target

442b24a6eab91d5ba3c3322290f1c22ee293f862dafafd452f935e08738d08ca.xls
Size

198KB
MD5

d46b90323f7c40b677637cc7c4b217d1
SHA1

c5af5be7767295426cc59fc6fedcd8b9063a4447
SHA256

442b24a6eab91d5ba3c3322290f1c22ee293f862dafafd452f935e08738d08ca
SHA512

892f870d6a81048ff632bed59c37ce30e0f99a4c6823ec7deb3afd84b514c86ca7ed99df448c2650fe97a69409f414d4e0ebf4a87fc967bc1d1ca13649336dca
SSDEEP

3072:OvsVwo9W5QA4QP5ow3fVI2u50XxGhFwNLzEpWVbr4GQ7ITkDchIPaM5krB:cVL5eQP5ow3fCZ50BsFnJmy

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	1496	4364	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4288	4364	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4636	4364	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4364 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE
4364	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4364 wrote to memory of 1496	4364	EXCEL.EXE	cmd.exe
PID 4364 wrote to memory of 1496	4364	EXCEL.EXE	cmd.exe
PID 4364 wrote to memory of 4288	4364	EXCEL.EXE	cmd.exe
PID 4364 wrote to memory of 4288	4364	EXCEL.EXE	cmd.exe
PID 4364 wrote to memory of 4636	4364	EXCEL.EXE	cmd.exe
PID 4364 wrote to memory of 4636	4364	EXCEL.EXE	cmd.exe
PID 1496 wrote to memory of 408	1496	cmd.exe	attrib.exe
PID 1496 wrote to memory of 408	1496	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

408 attrib.exe

pid	process
408	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\442b24a6eab91d5ba3c3322290f1c22ee293f862dafafd452f935e08738d08ca.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4364

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:1496

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:408

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:4288

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:4636

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/408-142-0x0000000000000000-mapping.dmp

Download
memory/1496-139-0x0000000000000000-mapping.dmp

Download
memory/4288-140-0x0000000000000000-mapping.dmp

Download
memory/4364-138-0x00007FF85A490000-0x00007FF85A4A0000-memory.dmp

Filesize
64KB

Download
memory/4364-136-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-137-0x00007FF85A490000-0x00007FF85A4A0000-memory.dmp

Filesize
64KB

Download
memory/4364-132-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-135-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-134-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-133-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-144-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-145-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-146-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4364-147-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/4636-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads