Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    29-04-2024 10:31

General

  • Target

    850a2a0eee8fe41dc2b84bcf4f692aa2.exe

  • Size

    347KB

  • MD5

    850a2a0eee8fe41dc2b84bcf4f692aa2

  • SHA1

    f5e822915d65c96bdb32f441651aaa0ed2884201

  • SHA256

    eda9de6005d8b240fcd625ca6e2c2ec385343f2fb88c9d7233892e8302488a9f

  • SHA512

    df839bcc45fcfebd776b21bbd85948fc69f50110fd3cabf7a53cda39edafd543a86fa40b200df4a45e5022651a2e538d888be3cf8addd6171e2c24d223f2d479

  • SSDEEP

    6144:qQnVK4NKrO3Eg2ASnfP10KVEI9iBmxf4AUkF10KobAMGuRcEEI7lpg2QF:+4NKh1RnfP1bVH9iB+PUkF10BhGuRNEp

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.151

Attributes
  • url_path

    /7043a0c6a68d9c65.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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe
    "C:\Users\Admin\AppData\Local\Temp\850a2a0eee8fe41dc2b84bcf4f692aa2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u1r8.0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2544
    • C:\Users\Admin\AppData\Local\Temp\u1r8.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u1r8.2\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:2344
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe
        3⤵
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1732
        • 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:1360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\U1R81~1.ZIP

    Filesize

    3.7MB

    MD5

    78d3ca6355c93c72b494bb6a498bf639

    SHA1

    2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

    SHA256

    a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

    SHA512

    1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

  • C:\Users\Admin\AppData\Local\Temp\a2ca7fc9

    Filesize

    1.4MB

    MD5

    2af770a24432365c9c4a4e6c4cec491f

    SHA1

    c3fd76eca44b09b14d2106ed2c7f4eed1ba8a973

    SHA256

    6e84acd81f0dc1fbd336eb168847919f70fb027beff784aa3ba62e20d5e3abfd

    SHA512

    666fbc32a379a6187f2d8e85cd0d6691b178e6dd0a02211e15332748248a9b1841b1260aab6b1ad33834660fbc0dcdf72d761873dffecc0948709faf81d4be48

  • C:\Users\Admin\AppData\Local\Temp\tmpC092.tmp

    Filesize

    20KB

    MD5

    c9ff7748d8fcef4cf84a5501e996a641

    SHA1

    02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

    SHA256

    4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

    SHA512

    d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

  • C:\Users\Admin\AppData\Local\Temp\u1r8.2\UIxMarketPlugin.dll

    Filesize

    1.6MB

    MD5

    d1ba9412e78bfc98074c5d724a1a87d6

    SHA1

    0572f98d78fb0b366b5a086c2a74cc68b771d368

    SHA256

    cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

    SHA512

    8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

  • C:\Users\Admin\AppData\Local\Temp\u1r8.2\bunch.dat

    Filesize

    1.3MB

    MD5

    1e8237d3028ab52821d69099e0954f97

    SHA1

    30a6ae353adda0c471c6ed5b7a2458b07185abf2

    SHA256

    9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

    SHA512

    a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

  • C:\Users\Admin\AppData\Local\Temp\u1r8.2\relay.dll

    Filesize

    1.5MB

    MD5

    10d51becd0bbce0fab147ff9658c565e

    SHA1

    4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

    SHA256

    7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

    SHA512

    29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

  • C:\Users\Admin\AppData\Local\Temp\u1r8.2\whale.dbf

    Filesize

    85KB

    MD5

    a723bf46048e0bfb15b8d77d7a648c3e

    SHA1

    8952d3c34e9341e4425571e10f22b782695bb915

    SHA256

    b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

    SHA512

    ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • \Users\Admin\AppData\Local\Temp\u1r8.0.exe

    Filesize

    202KB

    MD5

    edb1582f432aa2989cb72b89d999bed7

    SHA1

    ddcf17c954e7dab5059be86202b9c856f55ace48

    SHA256

    1c03534e55f231c41f78ad9a110bc391e2c915daa57f3a6cc115819feaa33047

    SHA512

    13a76b437d2ad5107be3abc5ada669d3c12af24624cef94add531dfb511141622560901c0fe06d47486c52744aeef9d2be297f87d69a7a4330b3882b1ab3fed0

  • \Users\Admin\AppData\Local\Temp\u1r8.2\run.exe

    Filesize

    2.4MB

    MD5

    9fb4770ced09aae3b437c1c6eb6d7334

    SHA1

    fe54b31b0db8665aa5b22bed147e8295afc88a03

    SHA256

    a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

    SHA512

    140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

  • memory/1360-231-0x00000000720C0000-0x0000000073122000-memory.dmp

    Filesize

    16.4MB

  • memory/1360-233-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1360-232-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1360-234-0x0000000000400000-0x00000000004C6000-memory.dmp

    Filesize

    792KB

  • memory/1732-177-0x0000000076DB0000-0x0000000076F59000-memory.dmp

    Filesize

    1.7MB

  • memory/1732-229-0x0000000073130000-0x00000000732A4000-memory.dmp

    Filesize

    1.5MB

  • memory/2276-154-0x0000000002C80000-0x0000000002D80000-memory.dmp

    Filesize

    1024KB

  • memory/2276-1-0x0000000002C80000-0x0000000002D80000-memory.dmp

    Filesize

    1024KB

  • memory/2276-2-0x0000000000240000-0x00000000002AD000-memory.dmp

    Filesize

    436KB

  • memory/2276-3-0x0000000000400000-0x0000000002B15000-memory.dmp

    Filesize

    39.1MB

  • memory/2276-147-0x0000000000400000-0x0000000002B15000-memory.dmp

    Filesize

    39.1MB

  • memory/2344-162-0x0000000073130000-0x00000000732A4000-memory.dmp

    Filesize

    1.5MB

  • memory/2344-169-0x0000000073130000-0x00000000732A4000-memory.dmp

    Filesize

    1.5MB

  • memory/2344-163-0x0000000076DB0000-0x0000000076F59000-memory.dmp

    Filesize

    1.7MB

  • memory/2544-228-0x0000000000400000-0x0000000002AF0000-memory.dmp

    Filesize

    38.9MB

  • memory/2544-176-0x0000000000400000-0x0000000002AF0000-memory.dmp

    Filesize

    38.9MB

  • memory/2544-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB