85fdabbd5e38b4e8ed43cd7ef2167676c72cfd6bc70e8680eafe7b47625b7b02

General

Target

85fdabbd5e38b4e8ed43cd7ef2167676c72cfd6bc70e8680eafe7b47625b7b02.xls
Size

146KB
MD5

4bff992a443fa63046c64e262b787e4f
SHA1

e1b3e01fd883fa53c12501804a0a16f88069f29b
SHA256

85fdabbd5e38b4e8ed43cd7ef2167676c72cfd6bc70e8680eafe7b47625b7b02
SHA512

385ebe026007d95916b1ce23dc0aa0eecefe386461636da4f5423c1291352c5bccb1cddf051799509dac081775885510896c307eb0c0774c5d8af93f7826a770
SSDEEP

1536:qXXXz0N/x7XSqZFXxqYMEd9iNxGmXd1kLX49Z95WFaf+87gS2dS0iPn1F+WVbrIO:UWr8ZgWVbr9Q7ITkDeKJtXw5v4W5Vd

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	2520	5080	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2776	5080	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	680	5080	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\52985E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

5080 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\52985E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE
5080	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 5080 wrote to memory of 3792	5080	EXCEL.EXE	splwow64.exe
PID 5080 wrote to memory of 3792	5080	EXCEL.EXE	splwow64.exe
PID 5080 wrote to memory of 2520	5080	EXCEL.EXE	cmd.exe
PID 5080 wrote to memory of 2520	5080	EXCEL.EXE	cmd.exe
PID 5080 wrote to memory of 2776	5080	EXCEL.EXE	cmd.exe
PID 5080 wrote to memory of 2776	5080	EXCEL.EXE	cmd.exe
PID 5080 wrote to memory of 680	5080	EXCEL.EXE	cmd.exe
PID 5080 wrote to memory of 680	5080	EXCEL.EXE	cmd.exe
PID 2520 wrote to memory of 3564	2520	cmd.exe	attrib.exe
PID 2520 wrote to memory of 3564	2520	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3564 attrib.exe

pid	process
3564	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\85fdabbd5e38b4e8ed43cd7ef2167676c72cfd6bc70e8680eafe7b47625b7b02.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:5080

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3792

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:2520

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3564

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:2776

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:680

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:3332

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

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Downloads

memory/680-142-0x0000000000000000-mapping.dmp

Download
memory/2520-140-0x0000000000000000-mapping.dmp

Download
memory/2776-141-0x0000000000000000-mapping.dmp

Download
memory/3564-143-0x0000000000000000-mapping.dmp

Download
memory/3792-139-0x0000000000000000-mapping.dmp

Download
memory/5080-136-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-138-0x00007FF7F2860000-0x00007FF7F2870000-memory.dmp

Filesize
64KB

Download
memory/5080-137-0x00007FF7F2860000-0x00007FF7F2870000-memory.dmp

Filesize
64KB

Download
memory/5080-132-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-135-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-134-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-133-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-161-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-162-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-163-0x00007FF7F5170000-0x00007FF7F5180000-memory.dmp

Filesize
64KB

Download
memory/5080-164-0x00007FF7F5170000-0x00007FF7F5180000-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