47fc4bfbd5bd5a0e2fbffb4db5f52dbfa566a6e7c609b2a03c7718d7abcff24b

Analysis

max time kernel
100s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02/04/2023, 22:52

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

skjak.jp_publics_download_8_156_190__file=_files_content_type_type019_190_202002141326519675.xlsm
Size

466KB
MD5

724d9f2560bdab871a460bcbd285825b
SHA1

3d7d2e0c6422ad4d14199bf314f4173bf2d60a3f
SHA256

47fc4bfbd5bd5a0e2fbffb4db5f52dbfa566a6e7c609b2a03c7718d7abcff24b
SHA512

edb08ba0dde1a269f4692ecca4c8b730c8ca01a0c8c42c563ed559fd495c5cdac17b60dd36402338971ef7c8739ac0166ed4ea8f3c1395d3f7a509e37eb5fad4
SSDEEP

12288:Xbk6OBNwM/DirywbPgANmWd4D2SxSOFUUn:XbCBWMUbPxmiyxLUUn

Score

1^/10

Malware Config

Signatures

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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
5012	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5012	EXCEL.EXE
5012	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 4888	5012	EXCEL.EXE	84
PID 5012 wrote to memory of 4888	5012	EXCEL.EXE	84

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\skjak.jp_publics_download_8_156_190__file=_files_content_type_type019_190_202002141326519675.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:4888

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/5012-133-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-135-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-134-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-136-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-137-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-138-0x00007FF842250000-0x00007FF842260000-memory.dmp

Filesize
64KB

Download
memory/5012-139-0x00007FF842250000-0x00007FF842260000-memory.dmp

Filesize
64KB

Download
memory/5012-848-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-849-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-850-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download
memory/5012-851-0x00007FF844A70000-0x00007FF844A80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads