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Analysis

  • max time kernel
    48s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2022, 14:41

General

  • Target

    b8cb4db77324fdef5be7471a97dc683fc94d34130fa2a908009811951d0581fd.exe

  • Size

    252KB

  • MD5

    0774d0eef30e99c0b9d693928e0f967c

  • SHA1

    cd5cc98b7fde2c7860e69b0a8d19463af713f853

  • SHA256

    b8cb4db77324fdef5be7471a97dc683fc94d34130fa2a908009811951d0581fd

  • SHA512

    f9c8ab1337fe5d8f6a723dfb42aa80b0ce9c6c8f6d7fc8605b8cc3a361dbd7e9876dd0664e355babe4e19ce6334f8416205b7dfa5b2cd94d35d84cda05014e98

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4sDDmuHxRfqSbdpveEgkj4qP:91OgLdaQ6uHvySZheEgkj4K

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 14 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8cb4db77324fdef5be7471a97dc683fc94d34130fa2a908009811951d0581fd.exe
    "C:\Users\Admin\AppData\Local\Temp\b8cb4db77324fdef5be7471a97dc683fc94d34130fa2a908009811951d0581fd.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1460
    • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:1528

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    b9165e81934c746e3a33afc6bde86143

    SHA1

    ce38f37d26d5fa6309f4d42cbf470bc4a884b100

    SHA256

    3edbe3448cc74e7862db06fb08a8250c044a6aadbbea35a365560080eaaa3624

    SHA512

    fab8731e561554bf3ac4a32950a4111d3bca7d9223727ed6eccca598777bd697606a11f658eae3d28f6dae16faf40fda7387d0e25cd8f3cb750c871f77178bc8

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\[email protected]\chrome.manifest

    Filesize

    116B

    MD5

    2fda85c73e8f8754d6b13e986a49a369

    SHA1

    07e4f7bfe81907af7539fd0f0274f03268310d4a

    SHA256

    01e05b5824864d3961754b18708bfaa635152e0e9be5534a5951d27bc59d3cdf

    SHA512

    31bbfc58a6c323e6d3a5043cd8b33973df1e4935ec88a3351a8acce53d97ecb2c9fd251dd04b08f5488855de4e062bdb80bc93649fb6cb8b139814628992feef

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\[email protected]\content\bg.js

    Filesize

    8KB

    MD5

    ac3954a53e1aa4f9ca803637ff59c70c

    SHA1

    456e52f4641d3591b5f3bc71c6456e8716d71c27

    SHA256

    cf9c27495ff822d6571e4cd4206b399c4d524b2abc7df464b6fe864d06320250

    SHA512

    925b5d1f114b1257e445d0d2506a1916acd630062f9e1493907144ee936b3335b5178ed969b3c661cb59800a426ec31529c9653c3ad9b0d18e8b7f82a6dfc379

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\[email protected]\content\zy.xul

    Filesize

    225B

    MD5

    058228c6010cca26cf2f507ccfe309b7

    SHA1

    28fd32d77a80cc9a8854e84c31984f60937511de

    SHA256

    39f11a56fea94e72bb8ca7f5776059b1b164218b1c6a2741ddd03c36939a4cf8

    SHA512

    ec0d089f13caff3b263a4a1dc568b8bac325071387f62d90a1a3016c3e1c1367097cfee1707b3cd830ac41ea44d13724fd1ce9e007b655e5308b6e8189029fed

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\[email protected]\install.rdf

    Filesize

    714B

    MD5

    f420f0b84f6f8e9873f271e1bafebd74

    SHA1

    28a22dc127335f007f5b2b02f29a5ef2ad79cdda

    SHA256

    88fcf84facf26c0340164781ec76f42082718c9084e672fe17dab376a7574483

    SHA512

    dd0e548d8fff5b45eeba6d7cc94ba62857e24acad410f04a8a0e79e72deadaa0c64c7ec22b178de0f18d595c4e33ffa0283f1e17aeac7edcc30e75675f005563

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\background.html

    Filesize

    4KB

    MD5

    b114d6c4eb5d2dd757ad9c65511f3d2d

    SHA1

    cbb1792daaa85821b9a16a6b4c16d269f5ee0fd1

    SHA256

    168c5c55722e93819cd7919789de3405e05f71fb34942050cb8c6419652a3883

    SHA512

    bb30d335436c66e1edeea593616646151636bb683147091a1f7e82cd1fb28122fad08ae3af21f3fb6492659b9173a39ed507565d7fbea13c46e826ee03b61106

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\bhoclass.dll

    Filesize

    139KB

    MD5

    4b35f6c1f932f52fa9901fbc47b432df

    SHA1

    8e842bf068b04f36475a3bf86c5ea6a9839bbb5e

    SHA256

    2b4d643a8a14f060bf3885f872b36e5e1fe1e777ad94783ba9593487c8e1f196

    SHA512

    8716b9a8e46933bf29348254a68d1a21392bdbbe3b4d5010e55fe638d02cc04eb685e424d440f7c5b58ffbca82e5772dd95bef73fa831595c2ae9599f3b05a99

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\content.js

    Filesize

    385B

    MD5

    2f37c5103d46140bfccbf6d2dbf54413

    SHA1

    407dfd56c1e1ddf4ac7d6776894631a070264947

    SHA256

    38940b0b4cf2751cef1d56ea5351e3237971a0a42db5daf16ed425e3fd9ff119

    SHA512

    b6d243e91135d2ae4addbf6823b844dcda47c0eae74284e4d01ffd2bcdded8b867c6f4dcb55db8296bbd8639585ab2ed5cd62e9525a93de894cfebfe85d2eb78

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\ldfkmidakfppjkojjkgnbjfgnmgmhbap.crx

    Filesize

    3KB

    MD5

    b50c592030497d5160742267a399c11e

    SHA1

    60ca93c4e1bc71e31304bb787a56d7c1bec00f13

    SHA256

    c2ad5ecf29442687049d82e3d37d77f6a136c844473edf95324289fcde469023

    SHA512

    8b4bd6b20f240530763aa43592ed0b7ac1bc4c5ebaa52f99d20da3cba78605238b4166a7be2db76d1b41d951e4a10ec636506969edf1549f6642bd6ea3e7cfc1

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\settings.ini

    Filesize

    656B

    MD5

    bd6c7f74a67f20b9566c10f08ba0a7ec

    SHA1

    04dcbcb1afb005f14c156be524bb4c9714be7dde

    SHA256

    480b6becc74bef251c02a0c2b00e0388b447288a95ed7e30974bc1799b67b714

    SHA512

    8820a22b400985431cab6e1c05a5b45003e85071c19decf666071c692b21acea21be75a0d9cb79587f1416fa83d85419923de29965e8490606c505d0db8e6b76

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • C:\Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • \ProgramData\wxDfast\bhoclass.dll

    Filesize

    139KB

    MD5

    4b35f6c1f932f52fa9901fbc47b432df

    SHA1

    8e842bf068b04f36475a3bf86c5ea6a9839bbb5e

    SHA256

    2b4d643a8a14f060bf3885f872b36e5e1fe1e777ad94783ba9593487c8e1f196

    SHA512

    8716b9a8e46933bf29348254a68d1a21392bdbbe3b4d5010e55fe638d02cc04eb685e424d440f7c5b58ffbca82e5772dd95bef73fa831595c2ae9599f3b05a99

  • \ProgramData\wxDfast\uninstall.exe

    Filesize

    46KB

    MD5

    8be20144dbd200c6de0c9430ed9280cf

    SHA1

    b81e3aacaaedd66ef0896acabc6983c94758e2b4

    SHA256

    634557ab79a29fe800721bc5f146a9b86799b72eb6755e821492f85ca66818a6

    SHA512

    fd7db954002be6332c8c6f4500fc38c1d5286022bb56f21b97567e837ee3d5a3c6db08cabcd2ffe405e7180918d6bb0b57b330703a9d045851901d01115ff94e

  • \Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • \Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • \Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • \Users\Admin\AppData\Local\Temp\7zS1D51.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • memory/1460-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

    Filesize

    8KB