ca8f4d8669cd97c9806fb591f1035100c64cfe3817a498dd9d22e930f740904f

General

Target

ca8f4d8669cd97c9806fb591f1035100c64cfe3817a498dd9d22e930f740904f.xls
Size

91KB
MD5

3b8aa48fb6601c72b3c4e1466d99b0cc
SHA1

e4722f2a392a725473d6ac692284238451ce348a
SHA256

ca8f4d8669cd97c9806fb591f1035100c64cfe3817a498dd9d22e930f740904f
SHA512

d94f2ec42a4c3f720f712a8d6d446e78307e57a885a829172b446fb1369bb79863bd318064fef8d0bd48518d3b7cfbd7213a65295eec3f2e18edacc4996fbf32
SSDEEP

1536:WqqqeniphhWVbrtkzEleQ7ITkR62lzIhY7nJdJoOd7cJaXwRCM2M/MGwb:RWVbrjQQ7ITk9a2AJaXwX5kDb

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	4116	3712	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4324	3712	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1916	3712	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

3712 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE
3712	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3712 wrote to memory of 4116	3712	EXCEL.EXE	cmd.exe
PID 3712 wrote to memory of 4116	3712	EXCEL.EXE	cmd.exe
PID 3712 wrote to memory of 4324	3712	EXCEL.EXE	cmd.exe
PID 3712 wrote to memory of 4324	3712	EXCEL.EXE	cmd.exe
PID 3712 wrote to memory of 1916	3712	EXCEL.EXE	cmd.exe
PID 3712 wrote to memory of 1916	3712	EXCEL.EXE	cmd.exe
PID 4116 wrote to memory of 1508	4116	cmd.exe	attrib.exe
PID 4116 wrote to memory of 1508	4116	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1508 attrib.exe

pid	process
1508	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\ca8f4d8669cd97c9806fb591f1035100c64cfe3817a498dd9d22e930f740904f.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3712

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:4116

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1508

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:4324

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:1916

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/1508-142-0x0000000000000000-mapping.dmp

Download
memory/1916-141-0x0000000000000000-mapping.dmp

Download
memory/3712-138-0x00007FFA6FA80000-0x00007FFA6FA90000-memory.dmp

Filesize
64KB

Download
memory/3712-135-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-136-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-137-0x00007FFA6FA80000-0x00007FFA6FA90000-memory.dmp

Filesize
64KB

Download
memory/3712-132-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-133-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-134-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-144-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-145-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-146-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/3712-147-0x00007FFA72110000-0x00007FFA72120000-memory.dmp

Filesize
64KB

Download
memory/4116-139-0x0000000000000000-mapping.dmp

Download
memory/4324-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads