24293e41797585b917da5353fc34c195ffa689942aecaa0c00476aa467c1e8fc

Analysis

max time kernel
159s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2022 15:34

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General

Target

24293e41797585b917da5353fc34c195ffa689942aecaa0c00476aa467c1e8fc.xls
Size

109KB
MD5

49087a345a03c5819428061ecf6ecb7a
SHA1

1483632ab84435e9b737b0475038fc1334ec7757
SHA256

24293e41797585b917da5353fc34c195ffa689942aecaa0c00476aa467c1e8fc
SHA512

779c026c708ea4187b0d36428a30edfdca76fe64c0c7f3d51b6c99430afbf045802cbc24d749a3f5578dca6168c617283c447ddc99dbba94f31da691c794b2b3
SSDEEP

1536:a444405WF37DySNiWhB4yajcZlZ958Y8I1sYWNWV8p4rzQ7ITkiD2lJdUcJtXwRQ:kwIEWV8KrzQ7ITkDZXJtXw/R5kgX36

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	980	2040	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4764	2040	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1520	2040	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

2040 EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2040 wrote to memory of 980	2040	EXCEL.EXE	cmd.exe
PID 2040 wrote to memory of 980	2040	EXCEL.EXE	cmd.exe
PID 2040 wrote to memory of 4764	2040	EXCEL.EXE	cmd.exe
PID 2040 wrote to memory of 4764	2040	EXCEL.EXE	cmd.exe
PID 2040 wrote to memory of 1520	2040	EXCEL.EXE	cmd.exe
PID 2040 wrote to memory of 1520	2040	EXCEL.EXE	cmd.exe
PID 980 wrote to memory of 4064	980	cmd.exe	attrib.exe
PID 980 wrote to memory of 4064	980	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4064 attrib.exe

pid	process
4064	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\24293e41797585b917da5353fc34c195ffa689942aecaa0c00476aa467c1e8fc.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040

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:980

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4064

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:4764

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:1520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/980-139-0x0000000000000000-mapping.dmp

Download
memory/1520-141-0x0000000000000000-mapping.dmp

Download
memory/2040-132-0x00007FFBEFBD0000-0x00007FFBEFBE0000-memory.dmp

Filesize
64KB

Download
memory/2040-133-0x00007FFBEFBD0000-0x00007FFBEFBE0000-memory.dmp

Filesize
64KB

Download
memory/2040-134-0x00007FFBEFBD0000-0x00007FFBEFBE0000-memory.dmp

Filesize
64KB

Download
memory/2040-135-0x00007FFBEFBD0000-0x00007FFBEFBE0000-memory.dmp

Filesize
64KB

Download
memory/2040-136-0x00007FFBEFBD0000-0x00007FFBEFBE0000-memory.dmp

Filesize
64KB

Download
memory/2040-137-0x00007FFBEDA70000-0x00007FFBEDA80000-memory.dmp

Filesize
64KB

Download
memory/2040-138-0x00007FFBEDA70000-0x00007FFBEDA80000-memory.dmp

Filesize
64KB

Download
memory/2040-143-0x00000122567E2000-0x00000122567E4000-memory.dmp

Filesize
8KB

Download
memory/4064-142-0x0000000000000000-mapping.dmp

Download
memory/4764-140-0x0000000000000000-mapping.dmp

Download