Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2022 00:25

General

  • Target

    573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f.exe

  • Size

    164KB

  • MD5

    4ab7f450124b7b4400bf866243d41a19

  • SHA1

    37d2b935cfb5424f675aa707efc29e0a526a59f9

  • SHA256

    573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f

  • SHA512

    cc13ce5852f6297820f59114135f0cfbe0131a4542761b6f3a875d6ed501086257406faa31f16e1e4521d06814e1720a6abe3b270c39aeb4dc6b94a6eb71b42c

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f.exe
    "C:\Users\Admin\AppData\Local\Temp\573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f.exe"
    1⤵
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Roaming\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\SyncSend.exe
      "C:\Users\Admin\AppData\Roaming\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\SyncSend.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe
        3⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        PID:1536
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe
        3⤵
          PID:696
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\upd49cfacbe.bat"
        2⤵
        • Deletes itself
        PID:608

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\upd49cfacbe.bat
      Filesize

      313B

      MD5

      701405b0911e8ca1ca58e56d07b0c46e

      SHA1

      9699811ce303af356f9c061021821b4b8b83a72d

      SHA256

      926032b2e65e8a94e8a81040b04209781fc8111c173d6bdf17a26360672c6685

      SHA512

      658c9690766e075dce9c4d5d920871286b04aad45d476022a92b20b9c3c63ce6aba1dbad8628435d6d84ddbcf0faea903e357f27270209dd67c98b045ba822ea

    • C:\Users\Admin\AppData\Roaming\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\SyncSend.exe
      Filesize

      164KB

      MD5

      4ab7f450124b7b4400bf866243d41a19

      SHA1

      37d2b935cfb5424f675aa707efc29e0a526a59f9

      SHA256

      573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f

      SHA512

      cc13ce5852f6297820f59114135f0cfbe0131a4542761b6f3a875d6ed501086257406faa31f16e1e4521d06814e1720a6abe3b270c39aeb4dc6b94a6eb71b42c

    • C:\Users\Admin\AppData\Roaming\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\SyncSend.exe
      Filesize

      164KB

      MD5

      4ab7f450124b7b4400bf866243d41a19

      SHA1

      37d2b935cfb5424f675aa707efc29e0a526a59f9

      SHA256

      573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f

      SHA512

      cc13ce5852f6297820f59114135f0cfbe0131a4542761b6f3a875d6ed501086257406faa31f16e1e4521d06814e1720a6abe3b270c39aeb4dc6b94a6eb71b42c

    • \Users\Admin\AppData\Roaming\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\SyncSend.exe
      Filesize

      164KB

      MD5

      4ab7f450124b7b4400bf866243d41a19

      SHA1

      37d2b935cfb5424f675aa707efc29e0a526a59f9

      SHA256

      573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f

      SHA512

      cc13ce5852f6297820f59114135f0cfbe0131a4542761b6f3a875d6ed501086257406faa31f16e1e4521d06814e1720a6abe3b270c39aeb4dc6b94a6eb71b42c

    • \Users\Admin\AppData\Roaming\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\SyncSend.exe
      Filesize

      164KB

      MD5

      4ab7f450124b7b4400bf866243d41a19

      SHA1

      37d2b935cfb5424f675aa707efc29e0a526a59f9

      SHA256

      573032a583013a819dc46f1040e37506f700ddec7ac92f4292ce79a83d48c92f

      SHA512

      cc13ce5852f6297820f59114135f0cfbe0131a4542761b6f3a875d6ed501086257406faa31f16e1e4521d06814e1720a6abe3b270c39aeb4dc6b94a6eb71b42c

    • memory/608-63-0x0000000000000000-mapping.dmp
    • memory/696-75-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/696-76-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/696-83-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/696-80-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/696-77-0x0000000000000000-mapping.dmp
    • memory/1328-57-0x0000000000000000-mapping.dmp
    • memory/1328-62-0x0000000000400000-0x000000000042A000-memory.dmp
      Filesize

      168KB

    • memory/1536-69-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/1536-65-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/1536-68-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/1536-70-0x0000000000000000-mapping.dmp
    • memory/1536-79-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/1536-67-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/1536-81-0x0000000074E11000-0x0000000074E13000-memory.dmp
      Filesize

      8KB

    • memory/1536-82-0x0000000000080000-0x00000000000AA000-memory.dmp
      Filesize

      168KB

    • memory/1976-54-0x0000000076A21000-0x0000000076A23000-memory.dmp
      Filesize

      8KB

    • memory/1976-61-0x0000000000400000-0x000000000042A000-memory.dmp
      Filesize

      168KB