Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-04-2024 01:08

General

  • Target

    tmp.exe

  • Size

    431KB

  • MD5

    fcac04fb67b3dec2db923867c5cb0701

  • SHA1

    56af848d85c781fd6ac0b8e11b2aec770fc4a105

  • SHA256

    df620b823687fa8371cb9e5a0dc17c483d804ef601757968b8666de2608d8ebb

  • SHA512

    66dd7676f43c1578e9d1f2e7e6bca50ae84541497d7b5801872fe7bad8118bc92d06ba4fd0f7a0f0b47e3d47485f116e89bf43e3324c1ef767d2d62befa236cd

  • SSDEEP

    12288:FiJmkAC1wKXfuGRen+MkNDbfs+uR6/N40KZ:Hk2quGRO+MkNDg+uR6/u0W

Malware Config

Signatures

  • Detect ZGRat V1 3 IoCs
  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT payload 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\u3n8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3n8.0.exe"
      2⤵
      • Executes dropped EXE
      PID:2440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2440 -s 1216
        3⤵
        • Program crash
        PID:728
    • C:\Users\Admin\AppData\Local\Temp\u3n8.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u3n8.2\run.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4640
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4616
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2252
    • C:\Users\Admin\AppData\Local\Temp\u3n8.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u3n8.3.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe
        "C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4724 -s 700
      2⤵
      • Program crash
      PID:3160
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2440 -ip 2440
    1⤵
      PID:3860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4724 -ip 4724
      1⤵
        PID:816

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\42c2d55

        Filesize

        1.4MB

        MD5

        d0e6827324518bc09473cbcdd569a34e

        SHA1

        e21d84d7c7909bb6d26709d7ee099e6b3e4559c5

        SHA256

        cac12fab1a9495944e7e9b41d4287d59a2c7b90efa1a2379ba5527d6260b0e0c

        SHA512

        b8bbf02095c35d488355610e3f30968631c9bff76140a3a64c466a47ab423149801ab0f4d12a5efbe738c08b88833d57b71212b41f2bb9dc76c7f7007d37cb7b

      • C:\Users\Admin\AppData\Local\Temp\tmpFCA2.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmpFCD4.tmp

        Filesize

        20KB

        MD5

        49693267e0adbcd119f9f5e02adf3a80

        SHA1

        3ba3d7f89b8ad195ca82c92737e960e1f2b349df

        SHA256

        d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

        SHA512

        b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

      • C:\Users\Admin\AppData\Local\Temp\u3n8.0.exe

        Filesize

        287KB

        MD5

        bb2810421305b969836433a1dfb11271

        SHA1

        b539a84f42a3e07253bfc76ab2cc89de6fdf6f7c

        SHA256

        84a11b7b44f40e21f2b778875bb6af408a014eeb907fb846cbcc7ea73131cefa

        SHA512

        94bc6848061595b7d2c78dd03cb488eb1c51cf53f372d725687353b47c6c601dd6d2470cf308720e556fa7d6160ea1185f034e75db793c6bdd592dd3606a0963

      • C:\Users\Admin\AppData\Local\Temp\u3n8.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u3n8.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u3n8.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u3n8.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u3n8.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u3n8.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • C:\Users\Admin\AppData\Local\Temp\u3n8.3.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/1552-170-0x00000269C54C0000-0x00000269C553A000-memory.dmp

        Filesize

        488KB

      • memory/1552-181-0x00000269C9940000-0x00000269C994E000-memory.dmp

        Filesize

        56KB

      • memory/1552-191-0x00000269CA8B0000-0x00000269CA8CE000-memory.dmp

        Filesize

        120KB

      • memory/1552-190-0x00000269CABA0000-0x00000269CABC2000-memory.dmp

        Filesize

        136KB

      • memory/1552-187-0x00000269CA8D0000-0x00000269CA920000-memory.dmp

        Filesize

        320KB

      • memory/1552-188-0x00000269C9A30000-0x00000269C9A3C000-memory.dmp

        Filesize

        48KB

      • memory/1552-184-0x00000269CADB0000-0x00000269CB2D8000-memory.dmp

        Filesize

        5.2MB

      • memory/1552-183-0x00000269C9A10000-0x00000269C9A32000-memory.dmp

        Filesize

        136KB

      • memory/1552-182-0x00000269C9A00000-0x00000269C9A0A000-memory.dmp

        Filesize

        40KB

      • memory/1552-180-0x00000269C9980000-0x00000269C99B8000-memory.dmp

        Filesize

        224KB

      • memory/1552-161-0x00000269A58E0000-0x00000269A91D8000-memory.dmp

        Filesize

        57.0MB

      • memory/1552-162-0x00000269C5270000-0x00000269C5380000-memory.dmp

        Filesize

        1.1MB

      • memory/1552-164-0x00000269AAF90000-0x00000269AAF9C000-memory.dmp

        Filesize

        48KB

      • memory/1552-163-0x00000269A96F0000-0x00000269A9700000-memory.dmp

        Filesize

        64KB

      • memory/1552-165-0x00000269AAF80000-0x00000269AAF94000-memory.dmp

        Filesize

        80KB

      • memory/1552-166-0x00000269AAFE0000-0x00000269AB004000-memory.dmp

        Filesize

        144KB

      • memory/1552-168-0x00000269AB020000-0x00000269AB04A000-memory.dmp

        Filesize

        168KB

      • memory/1552-167-0x00000269AB000000-0x00000269AB00A000-memory.dmp

        Filesize

        40KB

      • memory/1552-169-0x00000269C4F40000-0x00000269C4FF2000-memory.dmp

        Filesize

        712KB

      • memory/1552-179-0x00000269C5600000-0x00000269C5608000-memory.dmp

        Filesize

        32KB

      • memory/1552-171-0x00000269C5540000-0x00000269C55A2000-memory.dmp

        Filesize

        392KB

      • memory/1552-172-0x00000269C5620000-0x00000269C5696000-memory.dmp

        Filesize

        472KB

      • memory/1552-173-0x00000269AB010000-0x00000269AB01A000-memory.dmp

        Filesize

        40KB

      • memory/1552-177-0x00000269C56A0000-0x00000269C59A0000-memory.dmp

        Filesize

        3.0MB

      • memory/2252-203-0x0000000005980000-0x000000000598A000-memory.dmp

        Filesize

        40KB

      • memory/2252-204-0x0000000006C10000-0x000000000713C000-memory.dmp

        Filesize

        5.2MB

      • memory/2252-197-0x0000000001300000-0x00000000013C6000-memory.dmp

        Filesize

        792KB

      • memory/2252-225-0x0000000007FF0000-0x0000000007FFA000-memory.dmp

        Filesize

        40KB

      • memory/2252-198-0x00000000059E0000-0x0000000005A72000-memory.dmp

        Filesize

        584KB

      • memory/2252-206-0x0000000006810000-0x0000000006876000-memory.dmp

        Filesize

        408KB

      • memory/2252-205-0x0000000006720000-0x000000000673E000-memory.dmp

        Filesize

        120KB

      • memory/2252-199-0x0000000006030000-0x00000000065D4000-memory.dmp

        Filesize

        5.6MB

      • memory/2252-202-0x0000000005B10000-0x0000000005B60000-memory.dmp

        Filesize

        320KB

      • memory/2252-201-0x0000000005A80000-0x0000000005AF6000-memory.dmp

        Filesize

        472KB

      • memory/2252-200-0x0000000005E10000-0x0000000005FD2000-memory.dmp

        Filesize

        1.8MB

      • memory/2252-194-0x0000000071420000-0x0000000072674000-memory.dmp

        Filesize

        18.3MB

      • memory/2440-13-0x0000000000400000-0x0000000004038000-memory.dmp

        Filesize

        60.2MB

      • memory/4428-160-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4428-157-0x0000000000400000-0x00000000008AD000-memory.dmp

        Filesize

        4.7MB

      • memory/4616-130-0x00007FFE69150000-0x00007FFE69345000-memory.dmp

        Filesize

        2.0MB

      • memory/4616-189-0x0000000072950000-0x0000000072ACB000-memory.dmp

        Filesize

        1.5MB

      • memory/4640-106-0x0000000072950000-0x0000000072ACB000-memory.dmp

        Filesize

        1.5MB

      • memory/4640-99-0x0000000072950000-0x0000000072ACB000-memory.dmp

        Filesize

        1.5MB

      • memory/4640-100-0x00007FFE69150000-0x00007FFE69345000-memory.dmp

        Filesize

        2.0MB

      • memory/4724-125-0x0000000000400000-0x000000000405C000-memory.dmp

        Filesize

        60.4MB

      • memory/4724-1-0x0000000004320000-0x0000000004420000-memory.dmp

        Filesize

        1024KB

      • memory/4724-3-0x0000000000400000-0x000000000405C000-memory.dmp

        Filesize

        60.4MB

      • memory/4724-2-0x0000000005CC0000-0x0000000005D2D000-memory.dmp

        Filesize

        436KB

      • memory/4724-109-0x0000000000400000-0x000000000405C000-memory.dmp

        Filesize

        60.4MB