839ea835bb76f39f715466a4202ca744296cefea697f759bf1fc187474ac5901

General

Target

839ea835bb76f39f715466a4202ca744296cefea697f759bf1fc187474ac5901.xls
Size

91KB
MD5

7ddca9abc349d44f1c7b1c15936cef81
SHA1

fcae9e73cb428d380f19d61d72503d2809d707c2
SHA256

839ea835bb76f39f715466a4202ca744296cefea697f759bf1fc187474ac5901
SHA512

c95df966bf69a20a0500e79ad05f2dc238befa0fb85cb1a0a3fe3ff6d511eddb7a06a8fe80de92167998a10e7c529809fa361151b31306eea636cecf7d614011
SSDEEP

1536:1888wOJytNnoWVbr3Q7ITkMXr62lGM88S4JtXwnjdd:JoWVbr3Q7ITk8tjNJtXwjdd

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	3948	4612	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4676	4612	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	364	4612	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

4612 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE
4612	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4612 wrote to memory of 3948	4612	EXCEL.EXE	cmd.exe
PID 4612 wrote to memory of 3948	4612	EXCEL.EXE	cmd.exe
PID 4612 wrote to memory of 4676	4612	EXCEL.EXE	cmd.exe
PID 4612 wrote to memory of 4676	4612	EXCEL.EXE	cmd.exe
PID 4612 wrote to memory of 364	4612	EXCEL.EXE	cmd.exe
PID 4612 wrote to memory of 364	4612	EXCEL.EXE	cmd.exe
PID 3948 wrote to memory of 4784	3948	cmd.exe	attrib.exe
PID 3948 wrote to memory of 4784	3948	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4784 attrib.exe

pid	process
4784	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\839ea835bb76f39f715466a4202ca744296cefea697f759bf1fc187474ac5901.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4612

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:3948

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4784

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:4676

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:364

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/364-141-0x0000000000000000-mapping.dmp

Download
memory/3948-139-0x0000000000000000-mapping.dmp

Download
memory/4612-136-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-145-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-132-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-137-0x00007FF7CA1E0000-0x00007FF7CA1F0000-memory.dmp

Filesize
64KB

Download
memory/4612-138-0x00007FF7CA1E0000-0x00007FF7CA1F0000-memory.dmp

Filesize
64KB

Download
memory/4612-133-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-134-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-148-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-147-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-143-0x0000027F042A1000-0x0000027F042A3000-memory.dmp

Filesize
8KB

Download
memory/4612-135-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4612-146-0x00007FF7CC670000-0x00007FF7CC680000-memory.dmp

Filesize
64KB

Download
memory/4676-140-0x0000000000000000-mapping.dmp

Download
memory/4784-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads