eab95f09e45a3bd676fab0a043fa116d3690070e55c900571e1e4bd2f8dfff2e

Analysis

max time kernel
128s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29/11/2022, 08:44

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General

Target

eab95f09e45a3bd676fab0a043fa116d3690070e55c900571e1e4bd2f8dfff2e.xls
Size

108KB
MD5

51797bbc37e850eb4d9bead3daf96f6d
SHA1

bd2afa2a6ba26254923d82836251d2d7d4f92f65
SHA256

eab95f09e45a3bd676fab0a043fa116d3690070e55c900571e1e4bd2f8dfff2e
SHA512

00c3902dd8ad1833fe26ded4507548fe1580f0bed0bf5e4a5c0bb703e7cd3059895bc8803417a20ac904fd1a20dad08e320bd8db18c067946617cb947afc6a2b
SSDEEP

3072:Vnl6Nc7yRzs1H75wkZUgsQ6NqTBun5oWCWVbrzQ7kCTk95jhJtXw1v4x2:ll6Nc7yRzs1H75wkZUgsQ6NqTBun5oW+

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	2296	4416	cmd.exe	78
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4260	4416	cmd.exe	78
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2952	4416	cmd.exe	78

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 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

pid	Process
4416	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE
4416	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 2296	4416	EXCEL.EXE	91
PID 4416 wrote to memory of 2296	4416	EXCEL.EXE	91
PID 4416 wrote to memory of 4260	4416	EXCEL.EXE	93
PID 4416 wrote to memory of 4260	4416	EXCEL.EXE	93
PID 4416 wrote to memory of 2952	4416	EXCEL.EXE	94
PID 4416 wrote to memory of 2952	4416	EXCEL.EXE	94
PID 2296 wrote to memory of 1116	2296	cmd.exe	97
PID 2296 wrote to memory of 1116	2296	cmd.exe	97

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1116	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\eab95f09e45a3bd676fab0a043fa116d3690070e55c900571e1e4bd2f8dfff2e.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4416
- 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:2296
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:1116
- 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:4260
- 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:2952

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/4416-136-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-137-0x00007FFB6B3B0000-0x00007FFB6B3C0000-memory.dmp

Filesize
64KB

Download
memory/4416-138-0x00007FFB6B3B0000-0x00007FFB6B3C0000-memory.dmp

Filesize
64KB

Download
memory/4416-132-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-135-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-133-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-134-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-143-0x00000224B133C000-0x00000224B133E000-memory.dmp

Filesize
8KB

Download
memory/4416-145-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-146-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-147-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download
memory/4416-148-0x00007FFB6DCB0000-0x00007FFB6DCC0000-memory.dmp

Filesize
64KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads