2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37

General

Target

2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37.xls
Size

85KB
MD5

0cfaffe08c2fc01f2bb2178caf3828b8
SHA1

07960d0c76ab39a7b22f845c23525815790f2195
SHA256

2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37
SHA512

73cd2286b8b9eb1191006e5c897e8f454227d58c856a4a93263d1402598d2871a15e7b1e9d2ac2c7d1cd01b55b4b4e4fec017565015066242cd37960b3a88b5b
SSDEEP

1536:mOOOO67DSy1NO2lXbjSytC2BhYS6Drm1gxv7yZmspH7+cclKiEZClsPI4ukoRWGx:0m1gxv7yZmspH7+cclKisPI4ukoRWGNf

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	4424	1360	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4844	1360	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	664	1360	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1360 EXCEL.EXE

Suspicious use of SetWindowsHookEx 11 IoCs

Processes:

EXCEL.EXE

pid	process
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE
1360	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1360 wrote to memory of 4144	1360	EXCEL.EXE	splwow64.exe
PID 1360 wrote to memory of 4144	1360	EXCEL.EXE	splwow64.exe
PID 1360 wrote to memory of 4424	1360	EXCEL.EXE	cmd.exe
PID 1360 wrote to memory of 4424	1360	EXCEL.EXE	cmd.exe
PID 1360 wrote to memory of 664	1360	EXCEL.EXE	cmd.exe
PID 1360 wrote to memory of 664	1360	EXCEL.EXE	cmd.exe
PID 1360 wrote to memory of 4844	1360	EXCEL.EXE	cmd.exe
PID 1360 wrote to memory of 4844	1360	EXCEL.EXE	cmd.exe
PID 4424 wrote to memory of 4824	4424	cmd.exe	attrib.exe
PID 4424 wrote to memory of 4824	4424	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4824 attrib.exe

pid	process
4824	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\2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1360

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4144

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:4424

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4824

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:4844

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:664

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1288

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/664-141-0x0000000000000000-mapping.dmp

Download
memory/1360-132-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1360-133-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1360-134-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1360-135-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1360-136-0x00007FFD16230000-0x00007FFD16240000-memory.dmp

Filesize
64KB

Download
memory/1360-137-0x00007FFD141D0000-0x00007FFD141E0000-memory.dmp

Filesize
64KB

Download
memory/1360-138-0x00007FFD141D0000-0x00007FFD141E0000-memory.dmp

Filesize
64KB

Download
memory/4144-139-0x0000000000000000-mapping.dmp

Download
memory/4424-140-0x0000000000000000-mapping.dmp

Download
memory/4824-143-0x0000000000000000-mapping.dmp

Download
memory/4844-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads