Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-04-2024 19:19

General

  • Target

    d55a7bd155c00367db1a3687b420d845bfeb15d3a1aa9d49c3d2a7bd7659f99b.exe

  • Size

    397KB

  • MD5

    fb1affde150312ad6d8ec598b553d158

  • SHA1

    de098a20210ff527b764b0a95358982950625008

  • SHA256

    d55a7bd155c00367db1a3687b420d845bfeb15d3a1aa9d49c3d2a7bd7659f99b

  • SHA512

    1bf59f1bf21a6085a3a089e2c576ded0b88c1d6c482aac4cb8a62ace824adf686b6ddd12208d4011fb45429c1832e168ac991737821d6fc267e8ed2d50a6a7f1

  • SSDEEP

    6144:4Ia+pYfR7NC9yRjMy0TwJ+r+u0E9HAhRH8XEk+k5mda:HafK490T48wOHQF8HXqa

Malware Config

Signatures

  • SectopRAT

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

  • SectopRAT payload 1 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d55a7bd155c00367db1a3687b420d845bfeb15d3a1aa9d49c3d2a7bd7659f99b.exe
    "C:\Users\Admin\AppData\Local\Temp\d55a7bd155c00367db1a3687b420d845bfeb15d3a1aa9d49c3d2a7bd7659f99b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Users\Admin\AppData\Local\Temp\u1ho.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1ho.0.exe"
      2⤵
      • Executes dropped EXE
      PID:5076
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 1332
        3⤵
        • Program crash
        PID:2204
    • C:\Users\Admin\AppData\Local\Temp\u1ho.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u1ho.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:2260
      • 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:3000
        • 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:4736
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5076 -ip 5076
    1⤵
      PID:2516

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\213e4cfb

      Filesize

      1.4MB

      MD5

      6680d689a02e66bbb4260061991136d9

      SHA1

      f2d244f1aea0b12e1d594af4e996605299f3638e

      SHA256

      f63379eb911bcbcafd2a4a78f280c6c7c32c2ca5c0b25e5ed26eb2abb2537857

      SHA512

      af6fa6e04eacbc9d1a8d4abb771a94679cfcfaf3797b0560a039277a4e1aaf3a488af6c62c20b282240dd950a0126a60fb0443852b858b950ff283f8983915c5

    • C:\Users\Admin\AppData\Local\Temp\tmpF2BA.tmp

      Filesize

      20KB

      MD5

      42c395b8db48b6ce3d34c301d1eba9d5

      SHA1

      b7cfa3de344814bec105391663c0df4a74310996

      SHA256

      5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

      SHA512

      7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

    • C:\Users\Admin\AppData\Local\Temp\tmpF2CC.tmp

      Filesize

      20KB

      MD5

      22be08f683bcc01d7a9799bbd2c10041

      SHA1

      2efb6041cf3d6e67970135e592569c76fc4c41de

      SHA256

      451c2c0cf3b7cb412a05347c6e75ed8680f0d2e5f2ab0f64cc2436db9309a457

      SHA512

      0eef192b3d5abe5d2435acf54b42c729c3979e4ad0b73d36666521458043ee7df1e10386bef266d7df9c31db94fb2833152bb2798936cb2082715318ef05d936

    • C:\Users\Admin\AppData\Local\Temp\u1ho.0.exe

      Filesize

      252KB

      MD5

      3fc101e124f730814a85e7e58f6979ba

      SHA1

      409e336e935e8e078893881c309474cd909f37e8

      SHA256

      1d0cf2609e4792cc26fe75590407d96f8d41e813159518bd06860b17f734f688

      SHA512

      5613ee2a314e3741b8394eae973cab8b12d3fcc3456405206d7da3e8b87e85fceb0f01d2ef5b759e16cd67825a2f89f8af6b3ed5e57581933e9278845bff9fde

    • C:\Users\Admin\AppData\Local\Temp\u1ho.1.zip

      Filesize

      3.7MB

      MD5

      78d3ca6355c93c72b494bb6a498bf639

      SHA1

      2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

      SHA256

      a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

      SHA512

      1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

    • C:\Users\Admin\AppData\Local\Temp\u1ho.2\UIxMarketPlugin.dll

      Filesize

      1.6MB

      MD5

      d1ba9412e78bfc98074c5d724a1a87d6

      SHA1

      0572f98d78fb0b366b5a086c2a74cc68b771d368

      SHA256

      cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

      SHA512

      8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

    • C:\Users\Admin\AppData\Local\Temp\u1ho.2\bunch.dat

      Filesize

      1.3MB

      MD5

      1e8237d3028ab52821d69099e0954f97

      SHA1

      30a6ae353adda0c471c6ed5b7a2458b07185abf2

      SHA256

      9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

      SHA512

      a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

    • C:\Users\Admin\AppData\Local\Temp\u1ho.2\relay.dll

      Filesize

      1.5MB

      MD5

      10d51becd0bbce0fab147ff9658c565e

      SHA1

      4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

      SHA256

      7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

      SHA512

      29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

    • C:\Users\Admin\AppData\Local\Temp\u1ho.2\run.exe

      Filesize

      2.4MB

      MD5

      9fb4770ced09aae3b437c1c6eb6d7334

      SHA1

      fe54b31b0db8665aa5b22bed147e8295afc88a03

      SHA256

      a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

      SHA512

      140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

    • C:\Users\Admin\AppData\Local\Temp\u1ho.2\whale.dbf

      Filesize

      85KB

      MD5

      a723bf46048e0bfb15b8d77d7a648c3e

      SHA1

      8952d3c34e9341e4425571e10f22b782695bb915

      SHA256

      b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

      SHA512

      ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

    • memory/1932-22-0x0000000000400000-0x0000000002C46000-memory.dmp

      Filesize

      40.3MB

    • memory/1932-7-0x0000000003260000-0x00000000032CD000-memory.dmp

      Filesize

      436KB

    • memory/1932-4-0x0000000000400000-0x0000000002C46000-memory.dmp

      Filesize

      40.3MB

    • memory/1932-6-0x0000000002F60000-0x0000000003060000-memory.dmp

      Filesize

      1024KB

    • memory/1932-1-0x0000000002F60000-0x0000000003060000-memory.dmp

      Filesize

      1024KB

    • memory/1932-3-0x0000000000400000-0x0000000002C46000-memory.dmp

      Filesize

      40.3MB

    • memory/1932-2-0x0000000003260000-0x00000000032CD000-memory.dmp

      Filesize

      436KB

    • memory/1932-122-0x0000000000400000-0x0000000002C46000-memory.dmp

      Filesize

      40.3MB

    • memory/2260-124-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/2260-115-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/2260-116-0x00007FFA5C3A0000-0x00007FFA5C5A9000-memory.dmp

      Filesize

      2.0MB

    • memory/2260-123-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/3000-126-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/3000-134-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/3000-137-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/3000-128-0x00007FFA5C3A0000-0x00007FFA5C5A9000-memory.dmp

      Filesize

      2.0MB

    • memory/3000-132-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/3000-133-0x0000000072530000-0x00000000726AD000-memory.dmp

      Filesize

      1.5MB

    • memory/4736-145-0x00000000050C0000-0x00000000050D0000-memory.dmp

      Filesize

      64KB

    • memory/4736-147-0x0000000004E80000-0x0000000004EF6000-memory.dmp

      Filesize

      472KB

    • memory/4736-136-0x0000000070F50000-0x0000000072267000-memory.dmp

      Filesize

      19.1MB

    • memory/4736-142-0x0000000072A90000-0x0000000073241000-memory.dmp

      Filesize

      7.7MB

    • memory/4736-141-0x0000000000700000-0x00000000007C6000-memory.dmp

      Filesize

      792KB

    • memory/4736-143-0x0000000004F10000-0x0000000004FA2000-memory.dmp

      Filesize

      584KB

    • memory/4736-144-0x0000000005560000-0x0000000005B06000-memory.dmp

      Filesize

      5.6MB

    • memory/4736-175-0x00000000050C0000-0x00000000050D0000-memory.dmp

      Filesize

      64KB

    • memory/4736-146-0x00000000052A0000-0x0000000005462000-memory.dmp

      Filesize

      1.8MB

    • memory/4736-174-0x0000000072A90000-0x0000000073241000-memory.dmp

      Filesize

      7.7MB

    • memory/4736-148-0x0000000004FC0000-0x0000000005010000-memory.dmp

      Filesize

      320KB

    • memory/4736-149-0x0000000004E30000-0x0000000004E3A000-memory.dmp

      Filesize

      40KB

    • memory/4736-150-0x0000000006140000-0x000000000666C000-memory.dmp

      Filesize

      5.2MB

    • memory/4736-151-0x0000000005220000-0x000000000523E000-memory.dmp

      Filesize

      120KB

    • memory/4736-152-0x0000000005C80000-0x0000000005CE6000-memory.dmp

      Filesize

      408KB

    • memory/4736-171-0x0000000007400000-0x000000000740A000-memory.dmp

      Filesize

      40KB

    • memory/5076-18-0x0000000002E20000-0x0000000002F20000-memory.dmp

      Filesize

      1024KB

    • memory/5076-19-0x0000000004980000-0x00000000049A7000-memory.dmp

      Filesize

      156KB

    • memory/5076-20-0x0000000000400000-0x0000000002C22000-memory.dmp

      Filesize

      40.1MB

    • memory/5076-21-0x0000000000400000-0x0000000002C22000-memory.dmp

      Filesize

      40.1MB