Analysis

  • max time kernel
    145s
  • max time network
    153s
  • 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 12:37

General

  • Target

    bba5742cbd5e620ae6206dd33bd7d6669b8ba1406f36eeb3ba4fa13ff1f13580.exe

  • Size

    419KB

  • MD5

    27bdf1a30740d66ac16cb2924842fc4c

  • SHA1

    bf5f648b4b4a1a928b0f38ea21800cba55fab626

  • SHA256

    bba5742cbd5e620ae6206dd33bd7d6669b8ba1406f36eeb3ba4fa13ff1f13580

  • SHA512

    afe92674a427ddc2a89630499cfce84effe57c9dbfa710ec3f3ea9ec1064a2d00c52177e4bd09e64d1e4248c57f9492a99bfbe4a82b85679fb0323ff3fb3aaf0

  • SSDEEP

    6144:JWigHbPbnW5OdaZLB+zKwTTfRLpEGzYSIpB5Apy3E6Y:JZ2zzsZN+JTTlptIp7AIU6Y

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.76

Attributes
  • url_path

    /3cd2b41cbde8fc9c.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 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 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bba5742cbd5e620ae6206dd33bd7d6669b8ba1406f36eeb3ba4fa13ff1f13580.exe
    "C:\Users\Admin\AppData\Local\Temp\bba5742cbd5e620ae6206dd33bd7d6669b8ba1406f36eeb3ba4fa13ff1f13580.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4396
    • C:\Users\Admin\AppData\Local\Temp\u3e4.0.exe
      "C:\Users\Admin\AppData\Local\Temp\u3e4.0.exe"
      2⤵
      • Executes dropped EXE
      PID:3448
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3448 -s 1048
        3⤵
        • Program crash
        PID:2956
    • C:\Users\Admin\AppData\Local\Temp\u3e4.2\run.exe
      "C:\Users\Admin\AppData\Local\Temp\u3e4.2\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:2008
      • 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:4260
        • 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:2652
    • C:\Users\Admin\AppData\Local\Temp\u3e4.3.exe
      "C:\Users\Admin\AppData\Local\Temp\u3e4.3.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 1212
      2⤵
      • Program crash
      PID:4876
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3448 -ip 3448
    1⤵
      PID:2196
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4396 -ip 4396
      1⤵
        PID:1528

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\6541a918

        Filesize

        1.4MB

        MD5

        6c3ddc406f59e018cac1a4f267bd2eea

        SHA1

        175436644a6a2475273733350663d9c3bb5a4f78

        SHA256

        ed5101f3a89db52a7853fc9a8ad590120b5fb0ecef980824f124e2a4c1bd6ea5

        SHA512

        701066388c7097ec45a51a29593dd1b7cdb460200d482854d7fe8a80e3d4c5e483e8bcb6e67bada86309e6947319eaae137e3850078b45445184e6b08f4761e1

      • C:\Users\Admin\AppData\Local\Temp\tmp56D7.tmp

        Filesize

        20KB

        MD5

        42c395b8db48b6ce3d34c301d1eba9d5

        SHA1

        b7cfa3de344814bec105391663c0df4a74310996

        SHA256

        5644546ecefc6786c7be5b1a89e935e640963ccd34b130f21baab9370cb9055d

        SHA512

        7b9214db96e9bec8745b4161a41c4c0520cdda9950f0cd3f12c7744227a25d639d07c0dd68b552cf1e032181c2e4f8297747f27bad6c7447b0f415a86bd82845

      • C:\Users\Admin\AppData\Local\Temp\tmp56FA.tmp

        Filesize

        20KB

        MD5

        49693267e0adbcd119f9f5e02adf3a80

        SHA1

        3ba3d7f89b8ad195ca82c92737e960e1f2b349df

        SHA256

        d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f

        SHA512

        b4b9fcecf8d277bb0ccbb25e08f3559e3fc519d85d8761d8ad5bca983d04eb55a20d3b742b15b9b31a7c9187da40ad5c48baa7a54664cae4c40aa253165cbaa2

      • C:\Users\Admin\AppData\Local\Temp\u3e4.0.exe

        Filesize

        275KB

        MD5

        678d5e7b91062c3b4c1ea39343cda69a

        SHA1

        d73be2edfa050ee9ac434b310af55210b64375cf

        SHA256

        3d4faa1e7f7466857b35c91bda2637ea24783903e14a94ee43508118b56ed17c

        SHA512

        c10a51fa3e8788c8a726af11573014307bf5e47db65ca769db51af9ef751aaf02cc38fec7bc6a8752d3736a4fc68795289df26bd1dd3c945951bec1d7945df8d

      • C:\Users\Admin\AppData\Local\Temp\u3e4.1.zip

        Filesize

        3.7MB

        MD5

        78d3ca6355c93c72b494bb6a498bf639

        SHA1

        2fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e

        SHA256

        a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001

        SHA512

        1b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea

      • C:\Users\Admin\AppData\Local\Temp\u3e4.2\UIxMarketPlugin.dll

        Filesize

        1.6MB

        MD5

        d1ba9412e78bfc98074c5d724a1a87d6

        SHA1

        0572f98d78fb0b366b5a086c2a74cc68b771d368

        SHA256

        cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15

        SHA512

        8765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f

      • C:\Users\Admin\AppData\Local\Temp\u3e4.2\bunch.dat

        Filesize

        1.3MB

        MD5

        1e8237d3028ab52821d69099e0954f97

        SHA1

        30a6ae353adda0c471c6ed5b7a2458b07185abf2

        SHA256

        9387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742

        SHA512

        a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3

      • C:\Users\Admin\AppData\Local\Temp\u3e4.2\relay.dll

        Filesize

        1.5MB

        MD5

        10d51becd0bbce0fab147ff9658c565e

        SHA1

        4689a18112ff876d3c066bc8c14a08fd6b7b7a4a

        SHA256

        7b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed

        SHA512

        29faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29

      • C:\Users\Admin\AppData\Local\Temp\u3e4.2\run.exe

        Filesize

        2.4MB

        MD5

        9fb4770ced09aae3b437c1c6eb6d7334

        SHA1

        fe54b31b0db8665aa5b22bed147e8295afc88a03

        SHA256

        a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3

        SHA512

        140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256

      • C:\Users\Admin\AppData\Local\Temp\u3e4.2\whale.dbf

        Filesize

        85KB

        MD5

        a723bf46048e0bfb15b8d77d7a648c3e

        SHA1

        8952d3c34e9341e4425571e10f22b782695bb915

        SHA256

        b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422

        SHA512

        ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273

      • C:\Users\Admin\AppData\Local\Temp\u3e4.3.exe

        Filesize

        4.6MB

        MD5

        397926927bca55be4a77839b1c44de6e

        SHA1

        e10f3434ef3021c399dbba047832f02b3c898dbd

        SHA256

        4f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7

        SHA512

        cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954

      • memory/644-183-0x00000000026B0000-0x00000000026B1000-memory.dmp

        Filesize

        4KB

      • memory/2008-108-0x00007FFF5E0B0000-0x00007FFF5E2A5000-memory.dmp

        Filesize

        2.0MB

      • memory/2008-114-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/2008-116-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/2008-107-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/2652-139-0x00000000055E0000-0x0000000005630000-memory.dmp

        Filesize

        320KB

      • memory/2652-135-0x0000000005A80000-0x0000000006024000-memory.dmp

        Filesize

        5.6MB

      • memory/2652-166-0x0000000005640000-0x0000000005650000-memory.dmp

        Filesize

        64KB

      • memory/2652-165-0x0000000073B10000-0x00000000742C0000-memory.dmp

        Filesize

        7.7MB

      • memory/2652-162-0x0000000007B80000-0x0000000007B8A000-memory.dmp

        Filesize

        40KB

      • memory/2652-143-0x00000000062E0000-0x0000000006346000-memory.dmp

        Filesize

        408KB

      • memory/2652-142-0x00000000061F0000-0x000000000620E000-memory.dmp

        Filesize

        120KB

      • memory/2652-141-0x00000000066A0000-0x0000000006BCC000-memory.dmp

        Filesize

        5.2MB

      • memory/2652-140-0x0000000005500000-0x000000000550A000-memory.dmp

        Filesize

        40KB

      • memory/2652-138-0x0000000005550000-0x00000000055C6000-memory.dmp

        Filesize

        472KB

      • memory/2652-137-0x0000000005820000-0x00000000059E2000-memory.dmp

        Filesize

        1.8MB

      • memory/2652-136-0x0000000005640000-0x0000000005650000-memory.dmp

        Filesize

        64KB

      • memory/2652-128-0x0000000072090000-0x00000000732E4000-memory.dmp

        Filesize

        18.3MB

      • memory/2652-133-0x0000000073B10000-0x00000000742C0000-memory.dmp

        Filesize

        7.7MB

      • memory/2652-132-0x0000000000D90000-0x0000000000E56000-memory.dmp

        Filesize

        792KB

      • memory/2652-134-0x0000000005420000-0x00000000054B2000-memory.dmp

        Filesize

        584KB

      • memory/3448-15-0x0000000000AB0000-0x0000000000AD7000-memory.dmp

        Filesize

        156KB

      • memory/3448-17-0x0000000000400000-0x0000000000846000-memory.dmp

        Filesize

        4.3MB

      • memory/3448-14-0x0000000000B50000-0x0000000000C50000-memory.dmp

        Filesize

        1024KB

      • memory/3448-16-0x0000000000400000-0x0000000000846000-memory.dmp

        Filesize

        4.3MB

      • memory/4260-127-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/4260-125-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/4260-124-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/4260-120-0x00007FFF5E0B0000-0x00007FFF5E2A5000-memory.dmp

        Filesize

        2.0MB

      • memory/4260-118-0x00000000735C0000-0x000000007373B000-memory.dmp

        Filesize

        1.5MB

      • memory/4396-20-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

        Filesize

        1024KB

      • memory/4396-13-0x0000000000400000-0x000000000086B000-memory.dmp

        Filesize

        4.4MB

      • memory/4396-115-0x0000000000400000-0x000000000086B000-memory.dmp

        Filesize

        4.4MB

      • memory/4396-1-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

        Filesize

        1024KB

      • memory/4396-18-0x00000000025E0000-0x000000000264D000-memory.dmp

        Filesize

        436KB

      • memory/4396-3-0x0000000000400000-0x000000000086B000-memory.dmp

        Filesize

        4.4MB

      • memory/4396-2-0x00000000025E0000-0x000000000264D000-memory.dmp

        Filesize

        436KB

      • memory/4396-188-0x0000000000400000-0x000000000086B000-memory.dmp

        Filesize

        4.4MB