c705502b165cce5aada163d5e4708f78c541d93681356eefc95aef7aa0e7befb

General

Target

c705502b165cce5aada163d5e4708f78c541d93681356eefc95aef7aa0e7befb.xls
Size

203KB
MD5

7a5f02c67dec58466c91016d73002f95
SHA1

2f3c81b68c89ddbae9ee90d07974b765901e02a4
SHA256

c705502b165cce5aada163d5e4708f78c541d93681356eefc95aef7aa0e7befb
SHA512

8e7b52e91cc9a6da9cfccde703a10baad181e2f50eac2a3ff928d79710894ae700c31598599c451610069fd3b6a1417192a44ad1beec5b8ea927482d4c19c408
SSDEEP

6144:+5EFbPu1iIFb3SAYBO2ACy6VwDR+0OxwhydmTgEW:fmTn

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	4628	1388	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4148	1388	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4808	1388	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\1AB75E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1388 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\1AB75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE
1388	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1388 wrote to memory of 2640	1388	EXCEL.EXE	splwow64.exe
PID 1388 wrote to memory of 2640	1388	EXCEL.EXE	splwow64.exe
PID 1388 wrote to memory of 4808	1388	EXCEL.EXE	cmd.exe
PID 1388 wrote to memory of 4808	1388	EXCEL.EXE	cmd.exe
PID 1388 wrote to memory of 4148	1388	EXCEL.EXE	cmd.exe
PID 1388 wrote to memory of 4148	1388	EXCEL.EXE	cmd.exe
PID 1388 wrote to memory of 4628	1388	EXCEL.EXE	cmd.exe
PID 1388 wrote to memory of 4628	1388	EXCEL.EXE	cmd.exe
PID 4808 wrote to memory of 1440	4808	cmd.exe	attrib.exe
PID 4808 wrote to memory of 1440	4808	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1440 attrib.exe

pid	process
1440	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\c705502b165cce5aada163d5e4708f78c541d93681356eefc95aef7aa0e7befb.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:1388

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:2640

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:4628

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:4148

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:4808

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1440

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:4240

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/1388-145-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-138-0x00007FFC63830000-0x00007FFC63840000-memory.dmp

Filesize
64KB

Download
memory/1388-134-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-135-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-148-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-137-0x00007FFC63830000-0x00007FFC63840000-memory.dmp

Filesize
64KB

Download
memory/1388-133-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-147-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-136-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-146-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1388-132-0x00007FFC65890000-0x00007FFC658A0000-memory.dmp

Filesize
64KB

Download
memory/1440-143-0x0000000000000000-mapping.dmp

Download
memory/2640-139-0x0000000000000000-mapping.dmp

Download
memory/4148-141-0x0000000000000000-mapping.dmp

Download
memory/4628-142-0x0000000000000000-mapping.dmp

Download
memory/4808-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads