789b2f6dbebc98f7aa77a996e9e751b8454315c68d75c599801e009f6417c706

Analysis

max time kernel
105s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2022 20:11

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General

Target

789b2f6dbebc98f7aa77a996e9e751b8454315c68d75c599801e009f6417c706.xls
Size

140KB
MD5

560ec02b7d6f2973c821d706ae4737d0
SHA1

9121e4ee50280f86ffa573594c618170f9b6d4b2
SHA256

789b2f6dbebc98f7aa77a996e9e751b8454315c68d75c599801e009f6417c706
SHA512

7b0a4f0b52d14ebb8c396d8698bd39eb7e0f70e19863b4a31542832366197819f87b220b25dbfd236410ce93aa317c96905b75428ea6d2a790c0578bcb1503ff
SSDEEP

1536:KffffrKy2mu3flLsxkfeIffWVbrzQ7IhQKbUkiD2zmO/WwF1uJSyVzBmpUp0O9yd:9sxqWVbrzQ7IhbUkDSMZyVop

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	1068	1648	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1948	1648	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2392	1648	cmd.exe	82

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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\F4E65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1648	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 1068	1648	EXCEL.EXE	88
PID 1648 wrote to memory of 1068	1648	EXCEL.EXE	88
PID 1648 wrote to memory of 1948	1648	EXCEL.EXE	90
PID 1648 wrote to memory of 1948	1648	EXCEL.EXE	90
PID 1648 wrote to memory of 2392	1648	EXCEL.EXE	91
PID 1648 wrote to memory of 2392	1648	EXCEL.EXE	91
PID 1068 wrote to memory of 3856	1068	cmd.exe	94
PID 1068 wrote to memory of 3856	1068	cmd.exe	94

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\789b2f6dbebc98f7aa77a996e9e751b8454315c68d75c599801e009f6417c706.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:1648
- 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:1068
- - 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:1948
- 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:2392

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

Replay Monitor

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Downloads

memory/1648-138-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/1648-144-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-135-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-136-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-137-0x00007FFB61FD0000-0x00007FFB61FE0000-memory.dmp

Filesize
64KB

Download
memory/1648-132-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-133-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-147-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-146-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-145-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download
memory/1648-134-0x00007FFB64030000-0x00007FFB64040000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads