d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386

General

Target

d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386.xls
Size

87KB
MD5

2467ef25529dccaec9c196e1f8124f7d
SHA1

9a686190a1d3f1ef347ac5c66a43ef3a8bd94614
SHA256

d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386
SHA512

1f8aab6b1435c311d8db19576b1f2248fa003c52ad87e4b4f8d307961b10fe181a6c65b8bf118bb8dc6c2f9abd884af18908469c413ed422fa53d0ab18acf447
SSDEEP

1536:FIljUj4HMlJS2jcc0lbxOvTgZZ4cY7nJdFoOGIWWt2XeouG6:SHt2jcc0lbxOrDpEOZG6

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	928	2484	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3604	2484	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4776	2484	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

2484 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE
2484	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2484 wrote to memory of 928	2484	EXCEL.EXE	cmd.exe
PID 2484 wrote to memory of 928	2484	EXCEL.EXE	cmd.exe
PID 2484 wrote to memory of 3604	2484	EXCEL.EXE	cmd.exe
PID 2484 wrote to memory of 3604	2484	EXCEL.EXE	cmd.exe
PID 2484 wrote to memory of 4776	2484	EXCEL.EXE	cmd.exe
PID 2484 wrote to memory of 4776	2484	EXCEL.EXE	cmd.exe
PID 928 wrote to memory of 4756	928	cmd.exe	attrib.exe
PID 928 wrote to memory of 4756	928	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4756 attrib.exe

pid	process
4756	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\d41092a8d5a00957e4a5f5c33322a079b8092ce62c372ea5743c9b035e2e1386.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2484

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:928

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4756

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:3604

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:4776

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/928-139-0x0000000000000000-mapping.dmp

Download
memory/2484-144-0x000001A2B5B48000-0x000001A2B5B4A000-memory.dmp

Filesize
8KB

Download
memory/2484-143-0x000001A2B5B48000-0x000001A2B5B4A000-memory.dmp

Filesize
8KB

Download
memory/2484-135-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-136-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-149-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-138-0x00007FFF14B60000-0x00007FFF14B70000-memory.dmp

Filesize
64KB

Download
memory/2484-134-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-133-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-137-0x00007FFF14B60000-0x00007FFF14B70000-memory.dmp

Filesize
64KB

Download
memory/2484-148-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-147-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-132-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/2484-146-0x00007FFF16E70000-0x00007FFF16E80000-memory.dmp

Filesize
64KB

Download
memory/3604-140-0x0000000000000000-mapping.dmp

Download
memory/4756-142-0x0000000000000000-mapping.dmp

Download
memory/4776-141-0x0000000000000000-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