af79db274dfa6b863c9dfb2d798b71547086db2a8e3d014801212566ad6261de

General

Target

af79db274dfa6b863c9dfb2d798b71547086db2a8e3d014801212566ad6261de.xls
Size

98KB
MD5

d46ad631dde78a1a5b6df7683b35e868
SHA1

9c6e1628913a916264ab716684c73e096c325b3c
SHA256

af79db274dfa6b863c9dfb2d798b71547086db2a8e3d014801212566ad6261de
SHA512

1839c7d2bc60ed00f084a529676e222b022c98795e1c5975889f670af01f7fb051011a3e9f56853b927779287f3df7c8b63bc8a4e48a7a549c02d481a63031ff
SSDEEP

1536:qgAF2CAeRl86DWVbsSzxnIzQ7ITkR62l+IhY7nJdJoOd7XJtXwRtM2M/M4lk:pCAeRlVWVbTIzQ7ITk9x2bJtXwE5kgk

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	1040	3356	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4908	3356	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4256	3356	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\74985E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3356 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\74985E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE
3356	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 3356 wrote to memory of 1040	3356	EXCEL.EXE	cmd.exe
PID 3356 wrote to memory of 1040	3356	EXCEL.EXE	cmd.exe
PID 3356 wrote to memory of 4908	3356	EXCEL.EXE	cmd.exe
PID 3356 wrote to memory of 4908	3356	EXCEL.EXE	cmd.exe
PID 3356 wrote to memory of 4256	3356	EXCEL.EXE	cmd.exe
PID 3356 wrote to memory of 4256	3356	EXCEL.EXE	cmd.exe
PID 1040 wrote to memory of 3544	1040	cmd.exe	attrib.exe
PID 1040 wrote to memory of 3544	1040	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

3544 attrib.exe

pid	process
3544	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\af79db274dfa6b863c9dfb2d798b71547086db2a8e3d014801212566ad6261de.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:3356

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:1040

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:3544

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:4908

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:4256

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/1040-139-0x0000000000000000-mapping.dmp

Download
memory/3356-132-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/3356-133-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/3356-134-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/3356-135-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/3356-136-0x00007FFE2C5B0000-0x00007FFE2C5C0000-memory.dmp

Filesize
64KB

Download
memory/3356-137-0x00007FFE2A550000-0x00007FFE2A560000-memory.dmp

Filesize
64KB

Download
memory/3356-138-0x00007FFE2A550000-0x00007FFE2A560000-memory.dmp

Filesize
64KB

Download
memory/3544-142-0x0000000000000000-mapping.dmp

Download
memory/4256-141-0x0000000000000000-mapping.dmp

Download
memory/4908-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads