Analysis

  • max time kernel
    144s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    26-05-2024 01:15

General

  • Target

    fdb5b2a0041b0939552ecd31e382e28529313c8bc8a656eb7de1cef9fbd6eee9.exe

  • Size

    7.3MB

  • MD5

    5c95d5493dda877b228a6485a6d40d9c

  • SHA1

    185482dabc06787f6ce14c6cd46c17372a1b77ae

  • SHA256

    fdb5b2a0041b0939552ecd31e382e28529313c8bc8a656eb7de1cef9fbd6eee9

  • SHA512

    05334c39be051eb33c0ad4787cd8d56a1386115bf809f2ec44088f719ab5bf3caf8e7a4539cb5d10b60bc5452b98d01656332b7e5c608038aeae73bd88b16e24

  • SSDEEP

    196608:0qw9h20Qu0lFIutULgNr8cQ6P/qrFfDG2HD14LDsYu67ReBR:w2FIutULgS7rlDvDSI6cz

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • SectopRAT

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

  • SectopRAT payload 3 IoCs
  • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 3 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 2 IoCs
  • Detects executables packed with Themida 7 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 7 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fdb5b2a0041b0939552ecd31e382e28529313c8bc8a656eb7de1cef9fbd6eee9.exe
    "C:\Users\Admin\AppData\Local\Temp\fdb5b2a0041b0939552ecd31e382e28529313c8bc8a656eb7de1cef9fbd6eee9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Users\Admin\AppData\Local\Temp\4.exe
      "C:\Users\Admin\AppData\Local\Temp\4.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Users\Admin\AppData\Local\Temp\3.exe
        "C:\Users\Admin\AppData\Local\Temp\3.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2720
        • C:\Users\Admin\AppData\Local\Temp\zcjszx.exe
          "C:\Users\Admin\AppData\Local\Temp\zcjszx.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:644
          • C:\Users\Admin\AppData\Local\Temp\r.exe
            "C:\Users\Admin\AppData\Local\Temp\r.exe"
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Modifies system certificate store
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    8a7988555ca8979f11d4e15e0c308b7c

    SHA1

    0a243b7820d3c05a234a89f3b43c59d2bcedcc81

    SHA256

    8ecc8dff67cd69a11538fde2c689645b64a1d6a1e8ad726cfe2a139bef1f5b55

    SHA512

    dd510d1d2aa124499ebc54588071e2e6431e60c1d3b12bcd1986f44bdfb642db3e3f590d6b38e878036fa40f12e2140155b922b4b3345cd1a9fd5e6947dc04df

  • C:\Users\Admin\AppData\Local\Temp\4.exe
    Filesize

    3.4MB

    MD5

    d7e09993b21575a255d4ceaf706c205a

    SHA1

    01b68051ae35e1e12d8827664acdcf2cb9ed3766

    SHA256

    939f981d4a948e41999d8e1073418edb0c2afc47797ad87e0ecdf7124df7bde0

    SHA512

    37621af16254f15f273b0e36dff3927c4f40ef594e150c03f0b693443d16a7d6de8bed259a290b8ad9e8fe3d754865b06cdcba8b900722d1eb46487a56ef9d72

  • C:\Users\Admin\AppData\Local\Temp\CabA1BD.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarA398.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\tmpADC6.tmp
    Filesize

    46KB

    MD5

    02d2c46697e3714e49f46b680b9a6b83

    SHA1

    84f98b56d49f01e9b6b76a4e21accf64fd319140

    SHA256

    522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

    SHA512

    60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

  • C:\Users\Admin\AppData\Local\Temp\tmpADFB.tmp
    Filesize

    92KB

    MD5

    2157696941ae13875f8dfe8630ea4029

    SHA1

    b5ff62b7900cdfc630edd94d737309042de58251

    SHA256

    90e438a9d6706c8a1e809bfb5babe83508cac27d3c9f3f9b8bd1cd4f3aa3e033

    SHA512

    61b998e42f5d0121f75e04a46177c1c3a7122dc2014b7bed1d584c9ea53146e87d7a6b9e94bde066d92580c6c2b2316dd860980e5cd8f75984286dc90e43fb6a

  • \Users\Admin\AppData\Local\Temp\3.exe
    Filesize

    3.1MB

    MD5

    215f503316c98618dc6db327477fd26f

    SHA1

    136df5466ff49e2aadb1587e4c94d56175a0085e

    SHA256

    dbbde79c77cc64c6f42ca0f69e33561b70377626e7db42774679f9d602078cd1

    SHA512

    7c6a5ee768c8ae75ad9112526fa8de35c214b6de48435097599ab73b4ca072372ebaa8e59da2c734e0e4e2f0fac7187f1ad2a02306625051c7d9147e6d14da22

  • \Users\Admin\AppData\Local\Temp\r.exe
    Filesize

    3.2MB

    MD5

    cf1a74b1e40e5c34df68add35da92129

    SHA1

    c8faf639d73049f35de385f2c698f6809c1eaa92

    SHA256

    3196cc360075b773b4ff9a17ee1a53c6ce32476af563a910126fdfc02702f4c0

    SHA512

    83c3b4c16c2a53f1048c37e90c6ad5025b4e143975622bb0388b32af04b54544aeb3e2415ad7cccc2381471002732deec1f8b96d778efe6315953c495a0ba634

  • \Users\Admin\AppData\Local\Temp\zcjszx.exe
    Filesize

    3.5MB

    MD5

    823f263a3d860454ef8092594ffb7ec0

    SHA1

    707e4b0e1340a72d200bae4cee0bd2c22b47e1e7

    SHA256

    e9e391ef56461e970601392db1d9adc8958f1dbc7fb9328d58cfc0601d3c7a3b

    SHA512

    ccebdb1af101a5a05be7a92797add599bfc565df0849aa404fc1bd5156e02828b7df6713d8ee66144150006e33cc87a9977f827e9e789d09f251925b12ff7a52

  • memory/644-63-0x0000000003620000-0x0000000003E7C000-memory.dmp
    Filesize

    8.4MB

  • memory/644-168-0x0000000003620000-0x0000000003E7C000-memory.dmp
    Filesize

    8.4MB

  • memory/1284-12-0x0000000002F60000-0x0000000002F61000-memory.dmp
    Filesize

    4KB

  • memory/2136-65-0x00000000012A0000-0x0000000001AFC000-memory.dmp
    Filesize

    8.4MB

  • memory/2136-69-0x00000000012A0000-0x0000000001AFC000-memory.dmp
    Filesize

    8.4MB

  • memory/2136-70-0x00000000012A0000-0x0000000001AFC000-memory.dmp
    Filesize

    8.4MB

  • memory/2136-229-0x00000000012A0000-0x0000000001AFC000-memory.dmp
    Filesize

    8.4MB

  • memory/2136-233-0x00000000012A0000-0x0000000001AFC000-memory.dmp
    Filesize

    8.4MB

  • memory/2532-29-0x0000000003590000-0x0000000003E98000-memory.dmp
    Filesize

    9.0MB

  • memory/2720-38-0x0000000000110000-0x0000000000A18000-memory.dmp
    Filesize

    9.0MB

  • memory/2720-36-0x0000000000110000-0x0000000000A18000-memory.dmp
    Filesize

    9.0MB

  • memory/2720-35-0x0000000000110000-0x0000000000A18000-memory.dmp
    Filesize

    9.0MB

  • memory/2720-30-0x0000000000110000-0x0000000000A18000-memory.dmp
    Filesize

    9.0MB