20ab8a9ab284a5d5574df7d018bd619e916e10f3f179d3955c63a7ebf25b69e2

General

Target

67da26f647fcc28945839000a67553e1.xls
Size

143KB
MD5

67da26f647fcc28945839000a67553e1
SHA1

939a291bb57d46505fad6b70026242a4c640acee
SHA256

20ab8a9ab284a5d5574df7d018bd619e916e10f3f179d3955c63a7ebf25b69e2
SHA512

ccff7660841dba60cd90d174e6b166181b3513e0a8ea453c372fab7a0ee7273556ab9f3af8903898740a7420f3ccbd532c74af5a7b6fa70567b54ca4f480b11a
SSDEEP

3072:REzt+ca9JbcvzA7GmL2sQmN4Rd5W8ozZATHWVbVzQ7ITk9btfX1qCN5kW:REzt+ca9JbcvzA7GmL2sQmN4Rd5W8oA1

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	64	2552	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2256	2552	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	212	2552	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\~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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\A5B65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2552 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\A5B65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE
2552	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2552 wrote to memory of 64	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 64	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 2256	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 2256	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 212	2552	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 212	2552	EXCEL.EXE	cmd.exe
PID 64 wrote to memory of 3872	64	cmd.exe	attrib.exe
PID 64 wrote to memory of 3872	64	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3872 attrib.exe

pid	process
3872	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\67da26f647fcc28945839000a67553e1.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:2552

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:64

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3872

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:2256

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:212

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/64-139-0x0000000000000000-mapping.dmp

Download
memory/212-141-0x0000000000000000-mapping.dmp

Download
memory/2256-140-0x0000000000000000-mapping.dmp

Download
memory/2552-135-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-136-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-137-0x00007FFA74B60000-0x00007FFA74B70000-memory.dmp

Filesize
64KB

Download
memory/2552-138-0x00007FFA74B60000-0x00007FFA74B70000-memory.dmp

Filesize
64KB

Download
memory/2552-132-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-134-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-133-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-144-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-145-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-146-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/2552-147-0x00007FFA76C10000-0x00007FFA76C20000-memory.dmp

Filesize
64KB

Download
memory/3872-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads