79cdecfc14b0566489864751be9b10d5a218bd98e9a1da60b247221f41a9a34e

General

Target

79cdecfc14b0566489864751be9b10d5a218bd98e9a1da60b247221f41a9a34e.xls
Size

121KB
MD5

26ae636bdf8fc441e9ca85845048ca40
SHA1

ab65905a6b968cb32eef6800052a94d11716d1f0
SHA256

79cdecfc14b0566489864751be9b10d5a218bd98e9a1da60b247221f41a9a34e
SHA512

efa6b686fbb94b78d28de8c32008bb09ae3f5536f0ee87de3dae4931c90b532f6765da6b599d35989e85ecf6ffc50e98f335bbd65b233aca4e611ddcf44be302
SSDEEP

1536:6AuuuURnmp4NNvPWVbrzQ7ITkFRcD23k1UcJtXwWnd1K2k:VmmWVbrzQ7ITkF/EXJtXwA1Nk

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	4300	4004	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1632	4004	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4132	4004	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\89D65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4004 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\89D65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE
4004	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4004 wrote to memory of 4300	4004	EXCEL.EXE	cmd.exe
PID 4004 wrote to memory of 4300	4004	EXCEL.EXE	cmd.exe
PID 4004 wrote to memory of 1632	4004	EXCEL.EXE	cmd.exe
PID 4004 wrote to memory of 1632	4004	EXCEL.EXE	cmd.exe
PID 4004 wrote to memory of 4132	4004	EXCEL.EXE	cmd.exe
PID 4004 wrote to memory of 4132	4004	EXCEL.EXE	cmd.exe
PID 4300 wrote to memory of 1252	4300	cmd.exe	attrib.exe
PID 4300 wrote to memory of 1252	4300	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1252 attrib.exe

pid	process
1252	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\79cdecfc14b0566489864751be9b10d5a218bd98e9a1da60b247221f41a9a34e.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:4004

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:4300

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1252

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:1632

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:4132

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1252-142-0x0000000000000000-mapping.dmp

Download
memory/1632-140-0x0000000000000000-mapping.dmp

Download
memory/4004-136-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-144-0x000001E90BCCF000-0x000001E90BCD1000-memory.dmp

Filesize
8KB

Download
memory/4004-132-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-137-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/4004-138-0x00007FF832E40000-0x00007FF832E50000-memory.dmp

Filesize
64KB

Download
memory/4004-149-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-134-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-148-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-133-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-143-0x000001E90BCCF000-0x000001E90BCD1000-memory.dmp

Filesize
8KB

Download
memory/4004-135-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-146-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4004-147-0x00007FF8356B0000-0x00007FF8356C0000-memory.dmp

Filesize
64KB

Download
memory/4132-141-0x0000000000000000-mapping.dmp

Download
memory/4300-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads