Analysis

  • max time kernel
    160s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 21:29

General

  • Target

    cb76cff38bf8b3b6104947f2fa5d66b9.xlsm

  • Size

    300KB

  • MD5

    cb76cff38bf8b3b6104947f2fa5d66b9

  • SHA1

    ec682c2c4e64c097ba3612b599e241eb42e2ea4b

  • SHA256

    e46f53815fba913eb03caddaa661790330d8f04ced3cdff34fe49cc0b9588386

  • SHA512

    b74c75cce75d885d08689fb0f4f44947c23ea8311e75003fac57739ed144225652b0c4c2385c6af366c9fc3d43e3d57006e64e5b32ce5b00ddd66ecc95b130a0

  • SSDEEP

    6144:+aL7YOd84NS3Om++HpD6X18mDx8eeNHSVw6Cin8v5tQg4hFtsGK:tM+mhi18GxSOw6C2CV4hFtsGK

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • Drops file in System32 directory 14 IoCs
  • Drops file in Windows directory 3 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\cb76cff38bf8b3b6104947f2fa5d66b9.xlsm
    1⤵
    • Loads dropped DLL
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:936
    • C:\Users\Admin\AppData\Local\Temp\cym_16001380430BD84B24.exe
      "C:\Users\Admin\AppData\Local\Temp\cym_16001380430BD84B24.exe"
      2⤵
      • Executes dropped EXE
      PID:1492
  • C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\OUTLOOK.EXE" -Embedding
    1⤵
    • Accesses Microsoft Outlook profiles
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • outlook_win_path
    PID:1788

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\cym_16001380430BD84B24.exe
    Filesize

    94KB

    MD5

    73bc108394db8454fa0acb9e6c6871c4

    SHA1

    1f7f62ece551d0c5afee3b63765cdc741c5b5297

    SHA256

    ad0673b26a9195f5752ffe22ba8e4733f4e0a56ea0d1c27c992da2da9f6a0f0f

    SHA512

    5706c8a533526211e0491e43a048b918c6345441f69c07ebc6044167708ad0e43c3b61646155864add0035c206d52280ad83eb660ddcc6fcc8a287d12c0fea42

  • \Users\Admin\AppData\Local\Temp\cym_16001380430BD84B24.exe
    Filesize

    94KB

    MD5

    73bc108394db8454fa0acb9e6c6871c4

    SHA1

    1f7f62ece551d0c5afee3b63765cdc741c5b5297

    SHA256

    ad0673b26a9195f5752ffe22ba8e4733f4e0a56ea0d1c27c992da2da9f6a0f0f

    SHA512

    5706c8a533526211e0491e43a048b918c6345441f69c07ebc6044167708ad0e43c3b61646155864add0035c206d52280ad83eb660ddcc6fcc8a287d12c0fea42

  • memory/936-57-0x000000007223D000-0x0000000072248000-memory.dmp
    Filesize

    44KB

  • memory/936-54-0x000000002FF21000-0x000000002FF24000-memory.dmp
    Filesize

    12KB

  • memory/936-58-0x0000000075AE1000-0x0000000075AE3000-memory.dmp
    Filesize

    8KB

  • memory/936-59-0x000000007223D000-0x0000000072248000-memory.dmp
    Filesize

    44KB

  • memory/936-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/936-55-0x0000000071251000-0x0000000071253000-memory.dmp
    Filesize

    8KB

  • memory/936-69-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/936-70-0x000000007223D000-0x0000000072248000-memory.dmp
    Filesize

    44KB

  • memory/1492-61-0x0000000000000000-mapping.dmp
  • memory/1788-65-0x000000007223D000-0x0000000072248000-memory.dmp
    Filesize

    44KB

  • memory/1788-67-0x000000006AC81000-0x000000006AC83000-memory.dmp
    Filesize

    8KB

  • memory/1788-68-0x000000006A491000-0x000000006A493000-memory.dmp
    Filesize

    8KB