Analysis

  • max time kernel
    153s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    22-09-2021 13:19

General

  • Target

    45b8f4130d70db6e59cc17cae406798f5e40f97f460caf032d59b2a1715ec33c.exe

  • Size

    1.2MB

  • MD5

    9d06f72aeb10616c07e774187dfdce95

  • SHA1

    9c71200fd05f22fa12971c0ad4232d4fc169430d

  • SHA256

    45b8f4130d70db6e59cc17cae406798f5e40f97f460caf032d59b2a1715ec33c

  • SHA512

    e1bf5a51c59420355c1bae2c241d52e007a60fddb5847647e49c71b65abd1210d87a5cdb23ea62e7e2863bd86bb99ae89cd66767c906e8322634dc33ec454843

Score
10/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Uses Tor communications 1 TTPs

    Malware can proxy its traffic through Tor for more anonymity.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45b8f4130d70db6e59cc17cae406798f5e40f97f460caf032d59b2a1715ec33c.exe
    "C:\Users\Admin\AppData\Local\Temp\45b8f4130d70db6e59cc17cae406798f5e40f97f460caf032d59b2a1715ec33c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\windows\hh.exe
      "C:\windows\hh.exe"
      2⤵
        PID:1352
      • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
        "C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"
        2⤵
        • Executes dropped EXE
        PID:952

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Command and Control

    Connection Proxy

    1
    T1090

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
      MD5

      b4cd27f2b37665f51eb9fe685ec1d373

      SHA1

      7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

      SHA256

      91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

      SHA512

      e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

    • C:\Users\Admin\AppData\Local\Temp\x64btit.txt
      MD5

      4de524ccc76be92b055260f11b690b1b

      SHA1

      801f26a75783c3b1b76f1e1f0d7920ac21b86baf

      SHA256

      d0f05d96817b5bcdb3eec3034032772a80dabff4fcd30e07da70a23e60b47d59

      SHA512

      0e798f89d8f69b1211810fa95a54be792c064b57b7aa46b29dfea4f53b7a10b6dcc2a9e4a89009b81ba08c43b00657f93051b39e728c1044d1cfc1d60287d2ae

    • \Users\Admin\AppData\Local\Temp\GetX64BTIT.exe
      MD5

      b4cd27f2b37665f51eb9fe685ec1d373

      SHA1

      7f08febf0fdb7fc9f8bf35a10fb11e7de431abe0

      SHA256

      91f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581

      SHA512

      e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e

    • memory/952-61-0x0000000000000000-mapping.dmp
    • memory/1352-56-0x0000000000000000-mapping.dmp
    • memory/2036-54-0x00000000759B1000-0x00000000759B3000-memory.dmp
      Filesize

      8KB

    • memory/2036-55-0x0000000000220000-0x0000000000221000-memory.dmp
      Filesize

      4KB

    • memory/2036-57-0x0000000001FC0000-0x00000000020A2000-memory.dmp
      Filesize

      904KB

    • memory/2036-58-0x0000000000400000-0x0000000000545000-memory.dmp
      Filesize

      1.3MB

    • memory/2036-59-0x0000000002D10000-0x0000000002DAF000-memory.dmp
      Filesize

      636KB