c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217

General

Target

c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217.xls
Size

105KB
MD5

ad2bb5d99a87565da2a2177c1a55e927
SHA1

deefe54208a26ef45b6e9a5cdb113ca7a2ec6f54
SHA256

c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217
SHA512

c3f74fab630d69482e614408a9c57a3eed1a5fffcb7a2ef9f2f2583c564a82eb8907057b11c203c920a568104a4827c00d9d12302c3292410c7d1649255ac0ba
SSDEEP

1536:lPPPP7WH8Vo6+PWVbrzIZkC7ITkR629BCOU/WwF1JaM2M/MxAG6m:xWWVbrzIZn7ITk9zDWX5kLf

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	308	2144	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	204	2144	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4352	2144	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\92075E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2144 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\92075E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE
2144	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2144 wrote to memory of 308	2144	EXCEL.EXE	cmd.exe
PID 2144 wrote to memory of 308	2144	EXCEL.EXE	cmd.exe
PID 2144 wrote to memory of 204	2144	EXCEL.EXE	cmd.exe
PID 2144 wrote to memory of 204	2144	EXCEL.EXE	cmd.exe
PID 2144 wrote to memory of 4352	2144	EXCEL.EXE	cmd.exe
PID 2144 wrote to memory of 4352	2144	EXCEL.EXE	cmd.exe
PID 308 wrote to memory of 3904	308	cmd.exe	attrib.exe
PID 308 wrote to memory of 3904	308	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3904 attrib.exe

pid	process
3904	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\c9b5d9711e1325b8c0515f4e38294e555218e7bec46a3ac34d67703ee04fb217.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:2144

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:308

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3904

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:204

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:4352

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

Replay Monitor

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Downloads

memory/204-140-0x0000000000000000-mapping.dmp

Download
memory/308-139-0x0000000000000000-mapping.dmp

Download
memory/2144-136-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-144-0x000002CF84670000-0x000002CF84672000-memory.dmp

Filesize
8KB

Download
memory/2144-132-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-137-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/2144-138-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/2144-134-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-133-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-149-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-148-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-143-0x000002CF84670000-0x000002CF84672000-memory.dmp

Filesize
8KB

Download
memory/2144-135-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-146-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/2144-147-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/3904-142-0x0000000000000000-mapping.dmp

Download
memory/4352-141-0x0000000000000000-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