Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 19:25

General

  • Target

    f8bd860416800f8b0fecdbe7c2844ca006a350a2116ee354e0b74d0ee5b7c915.exe

  • Size

    397KB

  • MD5

    da197cf1b0266845d29c56ff03eaf54f

  • SHA1

    3490e9b3bab204bf3384cb61ba10c2cf19f3ab1a

  • SHA256

    f8bd860416800f8b0fecdbe7c2844ca006a350a2116ee354e0b74d0ee5b7c915

  • SHA512

    9f16b19df46f71030c3e2871ba1007ce6905707a25ca528846eddb03944526408bd1ad125f3d2e12ef3e77afac18ca6f03d2e91d575070a05f3380a2331b9298

  • SSDEEP

    6144:4Ia+pYfR7NC9yRjMy0TwJ+r+u0E9HAhRH8XEk+k5md:HafK490T48wOHQF8HXq

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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f8bd860416800f8b0fecdbe7c2844ca006a350a2116ee354e0b74d0ee5b7c915.exe
    "C:\Users\Admin\AppData\Local\Temp\f8bd860416800f8b0fecdbe7c2844ca006a350a2116ee354e0b74d0ee5b7c915.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3568
    • C:\Users\Admin\AppData\Local\Temp\u2r4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u2r4.0.exe"
      2⤵
      • Executes dropped EXE
      PID:1520
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 1052
        3⤵
        • Program crash
        PID:4904
    • C:\Users\Admin\AppData\Local\Temp\u2r4.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u2r4.2\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:448
      • 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:1208
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1124
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 1012
      2⤵
      • Program crash
      PID:1636
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1520 -ip 1520
    1⤵
      PID:1112
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3568 -ip 3568
      1⤵
        PID:3780

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\bc789bd

        Filesize

        1.4MB

        MD5

        6aeaddaa0c1c53dbdbe07223dd1839be

        SHA1

        8dd037da3666989dd4a9c227f51bc24b034e8122

        SHA256

        1a39d2f2f90f86de247e745f8ccd2e60f8099896150e0340ea6a87db94f4a613

        SHA512

        48affefd349352cd2767b499157dae6108f9ef2b50bf8f55e8711266aab2777e634e377902cdc65ae978cd466f0940bc2f00d2882db3078b7be6935a5a5e05ac

      • C:\Users\Admin\AppData\Local\Temp\tmpAD73.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmpADA5.tmp

        Filesize

        20KB

        MD5

        49693267e0adbcd119f9f5e02adf3a80

        SHA1

        3ba3d7f89b8ad195ca82c92737e960e1f2b349df

        SHA256

        d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

        SHA512

        b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

      • C:\Users\Admin\AppData\Local\Temp\u2r4.0.exe

        Filesize

        253KB

        MD5

        8804f7241e19c3b33b0b5de3cfc31cfe

        SHA1

        5bfe362ebdf0c4c06c231e0f908c89cd7a07c2ee

        SHA256

        a8280ed9d2a9a4f291c3a7eb629d20d4b58b441457e971ed124315210b5187bd

        SHA512

        8709840051be845c07a7cc55965a312a80bc3b2d72f2a042cec845c374d68258d889faf2d188609aeb3402c087a5d196db9de9acd34bb13699be8402ddcbf67a

      • C:\Users\Admin\AppData\Local\Temp\u2r4.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u2r4.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u2r4.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u2r4.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u2r4.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u2r4.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/448-117-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/448-109-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/448-110-0x00007FF8A45D0000-0x00007FF8A47C5000-memory.dmp

        Filesize

        2.0MB

      • memory/448-119-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/1124-136-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

        Filesize

        64KB

      • memory/1124-139-0x0000000005040000-0x0000000005090000-memory.dmp

        Filesize

        320KB

      • memory/1124-163-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

        Filesize

        64KB

      • memory/1124-162-0x0000000074F00000-0x00000000756B0000-memory.dmp

        Filesize

        7.7MB

      • memory/1124-143-0x0000000005CA0000-0x0000000005D06000-memory.dmp

        Filesize

        408KB

      • memory/1124-142-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

        Filesize

        120KB

      • memory/1124-141-0x0000000006070000-0x000000000659C000-memory.dmp

        Filesize

        5.2MB

      • memory/1124-140-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

        Filesize

        40KB

      • memory/1124-138-0x0000000004F60000-0x0000000004FD6000-memory.dmp

        Filesize

        472KB

      • memory/1124-137-0x00000000051C0000-0x0000000005382000-memory.dmp

        Filesize

        1.8MB

      • memory/1124-135-0x0000000005490000-0x0000000005A34000-memory.dmp

        Filesize

        5.6MB

      • memory/1124-134-0x0000000004DE0000-0x0000000004E72000-memory.dmp

        Filesize

        584KB

      • memory/1124-132-0x0000000000750000-0x0000000000816000-memory.dmp

        Filesize

        792KB

      • memory/1124-133-0x0000000074F00000-0x00000000756B0000-memory.dmp

        Filesize

        7.7MB

      • memory/1124-128-0x0000000071AE0000-0x0000000072D34000-memory.dmp

        Filesize

        18.3MB

      • memory/1208-126-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/1208-125-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/1208-123-0x00007FF8A45D0000-0x00007FF8A47C5000-memory.dmp

        Filesize

        2.0MB

      • memory/1208-129-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/1208-121-0x0000000072EF0000-0x000000007306B000-memory.dmp

        Filesize

        1.5MB

      • memory/1520-15-0x0000000000400000-0x0000000002C22000-memory.dmp

        Filesize

        40.1MB

      • memory/1520-13-0x0000000002E10000-0x0000000002F10000-memory.dmp

        Filesize

        1024KB

      • memory/1520-16-0x0000000000400000-0x0000000002C22000-memory.dmp

        Filesize

        40.1MB

      • memory/1520-14-0x0000000002D90000-0x0000000002DB7000-memory.dmp

        Filesize

        156KB

      • memory/3568-1-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

        Filesize

        1024KB

      • memory/3568-116-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/3568-20-0x00000000030C0000-0x000000000312D000-memory.dmp

        Filesize

        436KB

      • memory/3568-3-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/3568-2-0x00000000030C0000-0x000000000312D000-memory.dmp

        Filesize

        436KB

      • memory/3568-17-0x0000000000400000-0x0000000002C46000-memory.dmp

        Filesize

        40.3MB

      • memory/3568-19-0x0000000002EB0000-0x0000000002FB0000-memory.dmp

        Filesize

        1024KB