Analysis

  • max time kernel
    27s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:25

General

  • Target

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466.exe

  • Size

    352KB

  • MD5

    cfd27960b1e83830d2c2cbec212760e9

  • SHA1

    a0a85dcb5daf9c25c49f23b98ffb2ff17ea778e8

  • SHA256

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466

  • SHA512

    2e01c0e604daa19ef65ec52cc32731cb1d997ec7c7f68b92738f9e8becf0db8e75976b5ca347b9089824c4e92471a25a3b70d5190675440bcf803b50b006dd47

  • SSDEEP

    6144:Vur7albN2G5L1kJKYBJag47Z+QiEvoI413US/85cYNNz:sr7az2agXQiEvoI4JUSQPN

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466.exe
    "C:\Users\Admin\AppData\Local\Temp\4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1308
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 1308 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466.exe" & start C:\Users\Admin\AppData\Local\XWFLWL~1.EXE -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 1308
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1012
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:1148
      • C:\Users\Admin\AppData\Local\xwflwlqlnr.exe
        C:\Users\Admin\AppData\Local\XWFLWL~1.EXE -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:336

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\xwflwlqlnr.exe

    Filesize

    352KB

    MD5

    cfd27960b1e83830d2c2cbec212760e9

    SHA1

    a0a85dcb5daf9c25c49f23b98ffb2ff17ea778e8

    SHA256

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466

    SHA512

    2e01c0e604daa19ef65ec52cc32731cb1d997ec7c7f68b92738f9e8becf0db8e75976b5ca347b9089824c4e92471a25a3b70d5190675440bcf803b50b006dd47

  • C:\Users\Admin\AppData\Local\xwflwlqlnr.exe

    Filesize

    352KB

    MD5

    cfd27960b1e83830d2c2cbec212760e9

    SHA1

    a0a85dcb5daf9c25c49f23b98ffb2ff17ea778e8

    SHA256

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466

    SHA512

    2e01c0e604daa19ef65ec52cc32731cb1d997ec7c7f68b92738f9e8becf0db8e75976b5ca347b9089824c4e92471a25a3b70d5190675440bcf803b50b006dd47

  • \Users\Admin\AppData\Local\xwflwlqlnr.exe

    Filesize

    352KB

    MD5

    cfd27960b1e83830d2c2cbec212760e9

    SHA1

    a0a85dcb5daf9c25c49f23b98ffb2ff17ea778e8

    SHA256

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466

    SHA512

    2e01c0e604daa19ef65ec52cc32731cb1d997ec7c7f68b92738f9e8becf0db8e75976b5ca347b9089824c4e92471a25a3b70d5190675440bcf803b50b006dd47

  • \Users\Admin\AppData\Local\xwflwlqlnr.exe

    Filesize

    352KB

    MD5

    cfd27960b1e83830d2c2cbec212760e9

    SHA1

    a0a85dcb5daf9c25c49f23b98ffb2ff17ea778e8

    SHA256

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466

    SHA512

    2e01c0e604daa19ef65ec52cc32731cb1d997ec7c7f68b92738f9e8becf0db8e75976b5ca347b9089824c4e92471a25a3b70d5190675440bcf803b50b006dd47

  • \Users\Admin\AppData\Local\xwflwlqlnr.exe

    Filesize

    352KB

    MD5

    cfd27960b1e83830d2c2cbec212760e9

    SHA1

    a0a85dcb5daf9c25c49f23b98ffb2ff17ea778e8

    SHA256

    4852da4dbb190d3d4b331d0842d486fac5b9df9619e70fa387de579a9e428466

    SHA512

    2e01c0e604daa19ef65ec52cc32731cb1d997ec7c7f68b92738f9e8becf0db8e75976b5ca347b9089824c4e92471a25a3b70d5190675440bcf803b50b006dd47

  • memory/336-63-0x0000000000000000-mapping.dmp

  • memory/336-67-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/336-68-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/1012-58-0x0000000000000000-mapping.dmp

  • memory/1148-59-0x0000000000000000-mapping.dmp

  • memory/1308-57-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/1308-54-0x0000000000220000-0x0000000000224000-memory.dmp

    Filesize

    16KB

  • memory/1308-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

    Filesize

    8KB

  • memory/2040-56-0x0000000000000000-mapping.dmp