9bb9d51399f27272bb1febf6cd18f08d423b78fc874f5149e6d8a483f14eaae8

General

Target

061fa5f50e88f06a4d845b1f86ef3c14.xls
Size

207KB
MD5

061fa5f50e88f06a4d845b1f86ef3c14
SHA1

946eb8d618a20508e44af4f4c20ebadbacf97d3d
SHA256

9bb9d51399f27272bb1febf6cd18f08d423b78fc874f5149e6d8a483f14eaae8
SHA512

7a2926083bffbbea4d6b2f8e24d588849e3b48a980d4d622fbdb69887fde825df4db2d4a00ee40993b06e4318230c4d3c0429ca88e6f60445fa7a9ff5afb2042
SSDEEP

1536:JZKvwTTTT3irSbAx2b64z2tUiWVbrEr4BjJQ7ITkR62l4ozWWt2XKsPFJM2M/MJG:JZKvRWVbrZNQ7ITk9Tyab5kJD6

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	4460	4872	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3548	4872	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3360	4872	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\D9175E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4872 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\D9175E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4872 wrote to memory of 4460	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 4460	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 3548	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 3548	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 3360	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 3360	4872	EXCEL.EXE	cmd.exe
PID 4460 wrote to memory of 4688	4460	cmd.exe	attrib.exe
PID 4460 wrote to memory of 4688	4460	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4688 attrib.exe

pid	process
4688	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\061fa5f50e88f06a4d845b1f86ef3c14.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:4872

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:4460

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4688

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:3548

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:3360

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/3360-141-0x0000000000000000-mapping.dmp

Download
memory/3548-140-0x0000000000000000-mapping.dmp

Download
memory/4460-139-0x0000000000000000-mapping.dmp

Download
memory/4688-142-0x0000000000000000-mapping.dmp

Download
memory/4872-136-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-137-0x00007FFA2FA60000-0x00007FFA2FA70000-memory.dmp

Filesize
64KB

Download
memory/4872-138-0x00007FFA2FA60000-0x00007FFA2FA70000-memory.dmp

Filesize
64KB

Download
memory/4872-132-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-135-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-134-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-133-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-143-0x000001F43DD51000-0x000001F43DD53000-memory.dmp

Filesize
8KB

Download
memory/4872-144-0x000001F43DD51000-0x000001F43DD53000-memory.dmp

Filesize
8KB

Download
memory/4872-147-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-146-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-148-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download
memory/4872-149-0x00007FFA31DD0000-0x00007FFA31DE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads