be7321f7aa12f7cab6ac575da316590d1ae5491e5e56ab799adb8209a88dbd80

General

Target

be7321f7aa12f7cab6ac575da316590d1ae5491e5e56ab799adb8209a88dbd80.xls
Size

269KB
MD5

f4b98951db7205593b7fe35f6d8d549e
SHA1

eca681e224989d5009bf71100ecc55927fb153f8
SHA256

be7321f7aa12f7cab6ac575da316590d1ae5491e5e56ab799adb8209a88dbd80
SHA512

25034610d5950a493bd9d220f93247d8a6d9e776815872e351a4023eee7fc8bf3166a786cf1661cb658f360daef112321a7b84dd29711dcf76ccbb204fa66e23
SSDEEP

3072:UXfjOtJhZMeznfKWt6qgToN+l/NPs84mN+fyc6WVbrzYCx7ITkPjeVlEJtXw5Mgl:6cjlDgToN+RNPs8ZNEycuCo06

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	4904	2804	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4668	2804	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4840	2804	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\4D075E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2804 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\4D075E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

EXCEL.EXE

pid	process
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE
2804	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2804 wrote to memory of 3336	2804	EXCEL.EXE	splwow64.exe
PID 2804 wrote to memory of 3336	2804	EXCEL.EXE	splwow64.exe
PID 2804 wrote to memory of 4904	2804	EXCEL.EXE	cmd.exe
PID 2804 wrote to memory of 4904	2804	EXCEL.EXE	cmd.exe
PID 2804 wrote to memory of 4668	2804	EXCEL.EXE	cmd.exe
PID 2804 wrote to memory of 4668	2804	EXCEL.EXE	cmd.exe
PID 2804 wrote to memory of 4840	2804	EXCEL.EXE	cmd.exe
PID 2804 wrote to memory of 4840	2804	EXCEL.EXE	cmd.exe
PID 4904 wrote to memory of 4552	4904	cmd.exe	attrib.exe
PID 4904 wrote to memory of 4552	4904	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4552 attrib.exe

pid	process
4552	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\be7321f7aa12f7cab6ac575da316590d1ae5491e5e56ab799adb8209a88dbd80.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:2804

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3336

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:4904

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4552

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:4668

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:4840

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1132

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

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Downloads

memory/2804-145-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-138-0x00007FF83D570000-0x00007FF83D580000-memory.dmp

Filesize
64KB

Download
memory/2804-134-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-135-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-148-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-137-0x00007FF83D570000-0x00007FF83D580000-memory.dmp

Filesize
64KB

Download
memory/2804-133-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-147-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-136-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-146-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/2804-132-0x00007FF83FCF0000-0x00007FF83FD00000-memory.dmp

Filesize
64KB

Download
memory/3336-139-0x0000000000000000-mapping.dmp

Download
memory/4552-143-0x0000000000000000-mapping.dmp

Download
memory/4668-141-0x0000000000000000-mapping.dmp

Download
memory/4840-142-0x0000000000000000-mapping.dmp

Download
memory/4904-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads