Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    13-07-2023 23:11

General

  • Target

    Original/b44634d90a9ff2ed8a9d0304c11bf612.exe

  • Size

    480KB

  • MD5

    b44634d90a9ff2ed8a9d0304c11bf612

  • SHA1

    8f72e02dcbd87a4c1b880d349e34e0deb8e7bdd4

  • SHA256

    27d3378f41d3bd82d84544f7331856001a5fca259b6ef9001c15cdc43207c73e

  • SHA512

    7e48e19817a132c8c29f56c271865ad7ef375291229e9b844c3d3c7ff8927b23fe4eb87494ef89f3dae0e1795648ae910e576ca0c42c231c15aaca60bb619239

  • SSDEEP

    6144:iWWPaCGkGGCBJKeNm1VbeuJCeU2HM7R+mzZUxrKkhhcghPrQANJRjiP6EQ6a9k7v:ReGkGJN8VyUxrvoZgJRjJ6a9TgS

Score
7/10

Malware Config

Signatures

  • Allows Network login with blank passwords 1 TTPs 1 IoCs

    Allows local user accounts with blank passwords to access device from the network.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • Modifies data under HKEY_USERS 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Original\b44634d90a9ff2ed8a9d0304c11bf612.exe
    "C:\Users\Admin\AppData\Local\Temp\Original\b44634d90a9ff2ed8a9d0304c11bf612.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\uKsDgopvwKUlPJB.exe
      C:\Users\Admin\AppData\Local\Temp\Original\b44634d90a9ff2ed8a9d0304c11bf612.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2500
  • C:\Windows\system32\wbem\wmiprvse.exe
    C:\Windows\system32\wbem\wmiprvse.exe -Embedding
    1⤵
      PID:2140

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Windows\uKsDgopvwKUlPJB.exe

      Filesize

      480KB

      MD5

      b44634d90a9ff2ed8a9d0304c11bf612

      SHA1

      8f72e02dcbd87a4c1b880d349e34e0deb8e7bdd4

      SHA256

      27d3378f41d3bd82d84544f7331856001a5fca259b6ef9001c15cdc43207c73e

      SHA512

      7e48e19817a132c8c29f56c271865ad7ef375291229e9b844c3d3c7ff8927b23fe4eb87494ef89f3dae0e1795648ae910e576ca0c42c231c15aaca60bb619239

    • C:\Windows\uKsDgopvwKUlPJB.exe

      Filesize

      480KB

      MD5

      b44634d90a9ff2ed8a9d0304c11bf612

      SHA1

      8f72e02dcbd87a4c1b880d349e34e0deb8e7bdd4

      SHA256

      27d3378f41d3bd82d84544f7331856001a5fca259b6ef9001c15cdc43207c73e

      SHA512

      7e48e19817a132c8c29f56c271865ad7ef375291229e9b844c3d3c7ff8927b23fe4eb87494ef89f3dae0e1795648ae910e576ca0c42c231c15aaca60bb619239

    • memory/600-74-0x00000000002D0000-0x000000000030C000-memory.dmp

      Filesize

      240KB

    • memory/600-69-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/600-82-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/600-81-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/600-64-0x00000000002D0000-0x000000000030C000-memory.dmp

      Filesize

      240KB

    • memory/600-65-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/600-67-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/600-79-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/600-70-0x0000000000310000-0x0000000000351000-memory.dmp

      Filesize

      260KB

    • memory/2500-71-0x0000000000400000-0x0000000000479000-memory.dmp

      Filesize

      484KB

    • memory/2500-63-0x0000000000400000-0x0000000000479000-memory.dmp

      Filesize

      484KB

    • memory/2600-54-0x0000000000490000-0x0000000000492000-memory.dmp

      Filesize

      8KB

    • memory/2600-55-0x0000000000400000-0x0000000000479000-memory.dmp

      Filesize

      484KB

    • memory/2600-62-0x0000000000400000-0x0000000000479000-memory.dmp

      Filesize

      484KB