a30b5d550915a8aae62a985a087df140be24c665c6d8977b38ac072f8c822fa0

General

Target

a30b5d550915a8aae62a985a087df140be24c665c6d8977b38ac072f8c822fa0.xls
Size

147KB
MD5

89931447b43c20e47cf5d5a56ce8871f
SHA1

2a799346033124326fde9ec344220d48c9760165
SHA256

a30b5d550915a8aae62a985a087df140be24c665c6d8977b38ac072f8c822fa0
SHA512

90d6709943a73d670b7babe1b591418ab26a8add04aeef19758f0bad59e0f91ffd478456e49dbd03dfd117214a16daa8bf31214ed74229a4d20364a1028a4b8c
SSDEEP

1536:OeeeqsaebRowWiL8O820MVKWVbrzQ7IzKK5kbA23FkI/cJtXwqpa87237ZIDEE:rbRfb8uoWVbrzQ7IWskZWIEJtXwLODv

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	4208	4960	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4220	4960	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3940	4960	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 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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4960 EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE
4960	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4960 wrote to memory of 4208	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 4208	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 4220	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 4220	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 3940	4960	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 3940	4960	EXCEL.EXE	cmd.exe
PID 4208 wrote to memory of 4584	4208	cmd.exe	attrib.exe
PID 4208 wrote to memory of 4584	4208	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4584 attrib.exe

pid	process
4584	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\a30b5d550915a8aae62a985a087df140be24c665c6d8977b38ac072f8c822fa0.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4960

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:4208

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4584

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:4220

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:3940

C:\Windows\system32\werfault.exe
werfault.exe /h /shared Global\2750bf53be3448c6ade0ab1b98a8bad0 /t 3352 /p 4960
1⤵
PID:1568

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/3940-141-0x0000000000000000-mapping.dmp

Download
memory/4208-139-0x0000000000000000-mapping.dmp

Download
memory/4220-140-0x0000000000000000-mapping.dmp

Download
memory/4584-142-0x0000000000000000-mapping.dmp

Download
memory/4960-132-0x00007FFD6ABF0000-0x00007FFD6AC00000-memory.dmp

Filesize
64KB

Download
memory/4960-133-0x00007FFD6ABF0000-0x00007FFD6AC00000-memory.dmp

Filesize
64KB

Download
memory/4960-134-0x00007FFD6ABF0000-0x00007FFD6AC00000-memory.dmp

Filesize
64KB

Download
memory/4960-135-0x00007FFD6ABF0000-0x00007FFD6AC00000-memory.dmp

Filesize
64KB

Download
memory/4960-136-0x00007FFD6ABF0000-0x00007FFD6AC00000-memory.dmp

Filesize
64KB

Download
memory/4960-137-0x00007FFD68B90000-0x00007FFD68BA0000-memory.dmp

Filesize
64KB

Download
memory/4960-138-0x00007FFD68B90000-0x00007FFD68BA0000-memory.dmp

Filesize
64KB

Download
memory/4960-143-0x000002245C162000-0x000002245C164000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads