Analysis

  • max time kernel
    145s
  • max time network
    148s
  • 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 19:46

General

  • Target

    401c20bbadaca0ae86a100929f4b21282f63e272a1ac339ca9c4b444fd8d1289.exe

  • Size

    419KB

  • MD5

    021cfa1d38a5e559b84773d533223435

  • SHA1

    c4248fac5aa6eed042d6a0cac516bc383de261f9

  • SHA256

    401c20bbadaca0ae86a100929f4b21282f63e272a1ac339ca9c4b444fd8d1289

  • SHA512

    6a940693a98cec9c049175742d4d8a97fa23c0e34b9f508418fbe6b907c507423af889dd51d1d76d322dbd1fa4bd77214473a88816763436eec92c955865b076

  • SSDEEP

    6144:X4x9GU3P66ZHxrKG1afsuXOTgm8689vFQ3kvzFI162n:X4x4U3Cggjfly2vOUrFI11

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.111

Attributes
  • url_path

    /f993692117a3fda2.php

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\401c20bbadaca0ae86a100929f4b21282f63e272a1ac339ca9c4b444fd8d1289.exe
    "C:\Users\Admin\AppData\Local\Temp\401c20bbadaca0ae86a100929f4b21282f63e272a1ac339ca9c4b444fd8d1289.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1160
    • C:\Users\Admin\AppData\Local\Temp\uw8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\uw8.0.exe"
      2⤵
      • Executes dropped EXE
      PID:5996
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5996 -s 1160
        3⤵
        • Program crash
        PID:1244
    • C:\Users\Admin\AppData\Local\Temp\uw8.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\uw8.2\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:3620
      • 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:4028
        • 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:4676
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1160 -s 1148
      2⤵
      • Program crash
      PID:1452
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 5996 -ip 5996
    1⤵
      PID:3476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1160 -ip 1160
      1⤵
        PID:4532

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\ae411b8b

        Filesize

        1.4MB

        MD5

        a2b723d92557d12bffe6763e22e9601c

        SHA1

        31a4af2d52752fd6744bea432952cf3eddb43bca

        SHA256

        25376cf3231f29b9a445b6354ca626d8192717743012ad813a1ec2f703e361a1

        SHA512

        0457e4a4049f58ee717fb8f037180bbd372d2601d20add2d5967d6183f85ebac43d48cfc604eee4b3420fc9e20f4bc2800046ea288f475b156711304f1159d31

      • C:\Users\Admin\AppData\Local\Temp\tmpDE2D.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmpDE5F.tmp

        Filesize

        20KB

        MD5

        49693267e0adbcd119f9f5e02adf3a80

        SHA1

        3ba3d7f89b8ad195ca82c92737e960e1f2b349df

        SHA256

        d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

        SHA512

        b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

      • C:\Users\Admin\AppData\Local\Temp\uw8.0.exe

        Filesize

        275KB

        MD5

        609e477f1171e4ead007e05592f06ecd

        SHA1

        1438491f5054d85d918ffe2892f05a5cc2b930d1

        SHA256

        9b2c5027aaca1212afc373c13b25d60a053df5e3bfaf3558f401d58001e07907

        SHA512

        c4407460097a2494096233a31a9725c53179b55286560cdb7655fcf131e58294944703169814635ce59190183d6e496316956ee9f6abdaa3e0f3b708080c209e

      • C:\Users\Admin\AppData\Local\Temp\uw8.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\uw8.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\uw8.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\uw8.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\uw8.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\uw8.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • memory/1160-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

        Filesize

        1024KB

      • memory/1160-102-0x0000000000400000-0x000000000086B000-memory.dmp

        Filesize

        4.4MB

      • memory/1160-3-0x0000000000400000-0x000000000086B000-memory.dmp

        Filesize

        4.4MB

      • memory/1160-2-0x00000000024C0000-0x000000000252D000-memory.dmp

        Filesize

        436KB

      • memory/1160-113-0x00000000024C0000-0x000000000252D000-memory.dmp

        Filesize

        436KB

      • memory/3620-114-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/3620-103-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/3620-104-0x00007FFF930F0000-0x00007FFF932E5000-memory.dmp

        Filesize

        2.0MB

      • memory/3620-111-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/3620-110-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/4028-116-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/4028-121-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/4028-124-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/4028-118-0x00007FFF930F0000-0x00007FFF932E5000-memory.dmp

        Filesize

        2.0MB

      • memory/4028-120-0x0000000072EB0000-0x000000007302B000-memory.dmp

        Filesize

        1.5MB

      • memory/4676-130-0x00000000060A0000-0x0000000006644000-memory.dmp

        Filesize

        5.6MB

      • memory/4676-133-0x0000000005B70000-0x0000000005BE6000-memory.dmp

        Filesize

        472KB

      • memory/4676-123-0x0000000073A20000-0x0000000074C74000-memory.dmp

        Filesize

        18.3MB

      • memory/4676-127-0x0000000001320000-0x00000000013E6000-memory.dmp

        Filesize

        792KB

      • memory/4676-128-0x0000000073160000-0x0000000073910000-memory.dmp

        Filesize

        7.7MB

      • memory/4676-129-0x0000000005A50000-0x0000000005AE2000-memory.dmp

        Filesize

        584KB

      • memory/4676-158-0x00000000059D0000-0x00000000059E0000-memory.dmp

        Filesize

        64KB

      • memory/4676-131-0x00000000059D0000-0x00000000059E0000-memory.dmp

        Filesize

        64KB

      • memory/4676-132-0x0000000005CC0000-0x0000000005E82000-memory.dmp

        Filesize

        1.8MB

      • memory/4676-157-0x0000000073160000-0x0000000073910000-memory.dmp

        Filesize

        7.7MB

      • memory/4676-134-0x0000000005AF0000-0x0000000005B40000-memory.dmp

        Filesize

        320KB

      • memory/4676-135-0x00000000059E0000-0x00000000059EA000-memory.dmp

        Filesize

        40KB

      • memory/4676-136-0x0000000006C80000-0x00000000071AC000-memory.dmp

        Filesize

        5.2MB

      • memory/4676-137-0x0000000006770000-0x000000000678E000-memory.dmp

        Filesize

        120KB

      • memory/4676-138-0x0000000006860000-0x00000000068C6000-memory.dmp

        Filesize

        408KB

      • memory/5996-15-0x0000000000400000-0x0000000000846000-memory.dmp

        Filesize

        4.3MB

      • memory/5996-13-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

        Filesize

        1024KB

      • memory/5996-14-0x00000000009B0000-0x00000000009D7000-memory.dmp

        Filesize

        156KB

      • memory/5996-16-0x0000000000400000-0x0000000000846000-memory.dmp

        Filesize

        4.3MB