b12d4d1e500ad000ea311807c1b26b21124023c5b11be0da100cf8134aa8d723

General

Target

b12d4d1e500ad000ea311807c1b26b21124023c5b11be0da100cf8134aa8d723.xls
Size

94KB
MD5

468324f84129ff506b255abd46dcbaf5
SHA1

2574d02d210b81cc11cf6d31818fbc93fa41e30d
SHA256

b12d4d1e500ad000ea311807c1b26b21124023c5b11be0da100cf8134aa8d723
SHA512

f93925f664c75a2c57febac9546b150e3f4f4d5bf18dcad0f3cb2c38cb2b83196509791a44a3fff14b46889fe306578d534c64dc75d91aaa06b213d914ea6f6c
SSDEEP

1536:1EEEoM2v32gv8EhWVbrzQ7ITkfslwA23cM88SAJtXwn4v60:5DWVbrzQ7ITk7tjFJtXwy60

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	4336	2816	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4588	2816	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4140	2816	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2816 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE
2816	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2816 wrote to memory of 4336	2816	EXCEL.EXE	cmd.exe
PID 2816 wrote to memory of 4336	2816	EXCEL.EXE	cmd.exe
PID 2816 wrote to memory of 4588	2816	EXCEL.EXE	cmd.exe
PID 2816 wrote to memory of 4588	2816	EXCEL.EXE	cmd.exe
PID 2816 wrote to memory of 4140	2816	EXCEL.EXE	cmd.exe
PID 2816 wrote to memory of 4140	2816	EXCEL.EXE	cmd.exe
PID 4336 wrote to memory of 1508	4336	cmd.exe	attrib.exe
PID 4336 wrote to memory of 1508	4336	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1508 attrib.exe

pid	process
1508	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\b12d4d1e500ad000ea311807c1b26b21124023c5b11be0da100cf8134aa8d723.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2816

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:4336

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1508

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:4588

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:4140

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/1508-142-0x0000000000000000-mapping.dmp

Download
memory/2816-138-0x00007FFDC1830000-0x00007FFDC1840000-memory.dmp

Filesize
64KB

Download
memory/2816-144-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-135-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-136-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-137-0x00007FFDC1830000-0x00007FFDC1840000-memory.dmp

Filesize
64KB

Download
memory/2816-132-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-147-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-146-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-145-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-133-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/2816-134-0x00007FFDC3D50000-0x00007FFDC3D60000-memory.dmp

Filesize
64KB

Download
memory/4140-141-0x0000000000000000-mapping.dmp

Download
memory/4336-139-0x0000000000000000-mapping.dmp

Download
memory/4588-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads