da2ad091b8f924d6b963a1e5ec4ccac09e2e8a5a61fa3b52cf43592eb8936b64

General

Target

4f6549c84e2657102d34cb899ff71544.xls
Size

109KB
MD5

4f6549c84e2657102d34cb899ff71544
SHA1

8b74dbeecc9790c5cf1d51e4845bfd3f982309eb
SHA256

da2ad091b8f924d6b963a1e5ec4ccac09e2e8a5a61fa3b52cf43592eb8936b64
SHA512

314793e5a09b130d991dec0637da6db851005847fa36d991253d0eabe28a904c7def6e2d916cbd145df32bd0a9f92c31db5db21f039c7d8d44e150363776196f
SSDEEP

3072:ek3hOdsylKlgryzc4bNhZFGzE+cL2knT2jcc0lbxOG9BK9GAzKxyT:ek3hOdsylKlgryzc4bNhZF+E+W2kn8

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	4960	4772	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4160	4772	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1324	4772	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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\71E65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4772 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\71E65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE
4772	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4772 wrote to memory of 4960	4772	EXCEL.EXE	cmd.exe
PID 4772 wrote to memory of 4960	4772	EXCEL.EXE	cmd.exe
PID 4772 wrote to memory of 4160	4772	EXCEL.EXE	cmd.exe
PID 4772 wrote to memory of 4160	4772	EXCEL.EXE	cmd.exe
PID 4772 wrote to memory of 1324	4772	EXCEL.EXE	cmd.exe
PID 4772 wrote to memory of 1324	4772	EXCEL.EXE	cmd.exe
PID 4960 wrote to memory of 1512	4960	cmd.exe	attrib.exe
PID 4960 wrote to memory of 1512	4960	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1512 attrib.exe

pid	process
1512	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\4f6549c84e2657102d34cb899ff71544.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:4772

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:4960

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1512

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:4160

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:1324

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/1324-141-0x0000000000000000-mapping.dmp

Download
memory/1512-142-0x0000000000000000-mapping.dmp

Download
memory/4160-140-0x0000000000000000-mapping.dmp

Download
memory/4772-136-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-132-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-137-0x00007FFE5D230000-0x00007FFE5D240000-memory.dmp

Filesize
64KB

Download
memory/4772-138-0x00007FFE5D230000-0x00007FFE5D240000-memory.dmp

Filesize
64KB

Download
memory/4772-135-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-133-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-134-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-143-0x000001C61CC7A000-0x000001C61CC7C000-memory.dmp

Filesize
8KB

Download
memory/4772-145-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-146-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-147-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4772-148-0x00007FFE5F790000-0x00007FFE5F7A0000-memory.dmp

Filesize
64KB

Download
memory/4960-139-0x0000000000000000-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