7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d

Analysis

max time kernel
112s
max time network
132s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2022, 22:28

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General

Target

7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d.xls
Size

461KB
MD5

c702c80f6823dc3e12976430ca4ebea8
SHA1

95bd6c2739677a1f588622e7786586f47c8fa76c
SHA256

7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d
SHA512

15515dd49fc29dea7d0189a091df47d0cb14c76f66a06ece71fa2e0391d3cbc45c77b1c1801700bd5c7d9621a15e748daf1b9cad581e583c003b69ffca00978e
SSDEEP

6144:AIrnMODz6BllKWTfZjPrXGPLk5cROH+SlFnR0F9E4kyWJEV3H:7rnMODz/OcIHJnGF9hT

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3940	960	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2216	960	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1560	960	cmd.exe	79

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

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
960	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE
960	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 3940	960	EXCEL.EXE	90
PID 960 wrote to memory of 3940	960	EXCEL.EXE	90
PID 960 wrote to memory of 2216	960	EXCEL.EXE	92
PID 960 wrote to memory of 2216	960	EXCEL.EXE	92
PID 960 wrote to memory of 1560	960	EXCEL.EXE	93
PID 960 wrote to memory of 1560	960	EXCEL.EXE	93
PID 3940 wrote to memory of 3856	3940	cmd.exe	96
PID 3940 wrote to memory of 3856	3940	cmd.exe	96

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
3856	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\7e55af42e96c7102f792b6ecd3318f27c885ae753b29f98ab5e675634169367d.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:960
- 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:3940
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:3856
- 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:2216
- 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:1560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/960-138-0x00007FFCEC080000-0x00007FFCEC090000-memory.dmp

Filesize
64KB

Download
memory/960-146-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-134-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-135-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-136-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-137-0x00007FFCEC080000-0x00007FFCEC090000-memory.dmp

Filesize
64KB

Download
memory/960-133-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-132-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-147-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-144-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download
memory/960-145-0x00007FFCEE4B0000-0x00007FFCEE4C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads