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Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 00:53

General

  • Target

    4041cdabb4bc763485c902c30636f690_NEAS.exe

  • Size

    70KB

  • MD5

    4041cdabb4bc763485c902c30636f690

  • SHA1

    e42b97a4eb737b3c1ca575605a2c85002962680f

  • SHA256

    56240bd530a2aa41e8933fb27f4f262efc27afd3bd3a11e2c777a0897e6d2340

  • SHA512

    0dd743568cf6d372c4369a5a0e69c47f53e714ffa587a27f9ccc97e8b34e0147ec2eb71799a7b3f53e08a79f9d847c03df17397d30fb11734172469c9d155f6d

  • SSDEEP

    1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8sla:Olg35GTslA5t3/w8P

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • Sets file execution options in registry 2 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:608
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3468
        • C:\Users\Admin\AppData\Local\Temp\4041cdabb4bc763485c902c30636f690_NEAS.exe
          "C:\Users\Admin\AppData\Local\Temp\4041cdabb4bc763485c902c30636f690_NEAS.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4712
          • C:\Windows\SysWOW64\oldahoag.exe
            "C:\Windows\system32\oldahoag.exe"
            3⤵
            • Windows security bypass
            • Modifies Installed Components in the registry
            • Sets file execution options in registry
            • Executes dropped EXE
            • Windows security modification
            • Modifies WinLogon
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:848
            • C:\Windows\SysWOW64\oldahoag.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2208

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\addoodat-ucum.exe

        Filesize

        72KB

        MD5

        33f80da8e23f74cc759457a4f1395aa8

        SHA1

        165786d60f0753d5a8b0a7adfc6639108ce5f175

        SHA256

        5a93698ddbd841a7633ea1bc88d36801551274417a872a951a8929d5c0c61066

        SHA512

        84b73c9aef4528a45897a5af9dcf4fc1063ed43f3f21f8b1de02c8e1d6d28f57145f2648c6ed836f6f09a263ecedd72e1dc47b81a3b5880551fd4c22d5651667

      • C:\Windows\SysWOW64\eacfuxon.dll

        Filesize

        5KB

        MD5

        f37b21c00fd81bd93c89ce741a88f183

        SHA1

        b2796500597c68e2f5638e1101b46eaf32676c1c

        SHA256

        76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

        SHA512

        252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

      • C:\Windows\SysWOW64\oldahoag.exe

        Filesize

        70KB

        MD5

        4041cdabb4bc763485c902c30636f690

        SHA1

        e42b97a4eb737b3c1ca575605a2c85002962680f

        SHA256

        56240bd530a2aa41e8933fb27f4f262efc27afd3bd3a11e2c777a0897e6d2340

        SHA512

        0dd743568cf6d372c4369a5a0e69c47f53e714ffa587a27f9ccc97e8b34e0147ec2eb71799a7b3f53e08a79f9d847c03df17397d30fb11734172469c9d155f6d

      • C:\Windows\SysWOW64\uvhifar.exe

        Filesize

        73KB

        MD5

        b2eac56b1760cb483fde09d77a043250

        SHA1

        9b3183d0c8b4bdc22b09ac05a93c3d12442fb37f

        SHA256

        7cb6bda49233ee5d58b16ef43a5debb60e66e11411ea886f7726e54216d98cba

        SHA512

        49c885dd4a0be08fcdac5fbb6277790d43b79463fb4e1e3a2d57e76b647e7725666d76b5aea470d46ff5ae947d58ec2e4f8a258a46d323d761c8e75ad91ec4d5

      • memory/848-49-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/2208-50-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB

      • memory/4712-6-0x0000000000400000-0x0000000000414000-memory.dmp

        Filesize

        80KB