Analysis

  • max time kernel
    121s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2024 18:27

General

  • Target

    03088e6a4af1f3078c9183a12701a75a94767cb7c46d42eac3cffbc18ad4e3a5.exe

  • Size

    551KB

  • MD5

    641d6aa07f85a6a10abd7d569e7e4b0d

  • SHA1

    55fc9258c70b5b55a33ce7287fdc5ca687f5dc83

  • SHA256

    03088e6a4af1f3078c9183a12701a75a94767cb7c46d42eac3cffbc18ad4e3a5

  • SHA512

    6f286f8f4126e2809503b8bb38787f39f052b347ce221bc9f60c7be878721d37ee25153cd1d9be5bf958ccdcd5de739e72912aa7177105829adba2dc190577d7

  • SSDEEP

    12288:h1OgLdaOVWctn+MEfOUgbJuMmFcouJqku:h1OYdaOVtMOUgJHJJqku

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Drops Chrome extension 1 IoCs
  • 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).

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03088e6a4af1f3078c9183a12701a75a94767cb7c46d42eac3cffbc18ad4e3a5.exe
    "C:\Users\Admin\AppData\Local\Temp\03088e6a4af1f3078c9183a12701a75a94767cb7c46d42eac3cffbc18ad4e3a5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1332
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /n /s /i:"" OQK.dll
      2⤵
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:1280

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\6Fk.dll

    Filesize

    180KB

    MD5

    0e093772550eb9541dd715c016b5584a

    SHA1

    20338dc859a5652f5661280dc508f4e5b533e76d

    SHA256

    028999304f35f7a6fc2cf6e360d4ea587612d63ce191fa979cc98ccca46ab149

    SHA512

    0030b395e2fde6bc9f70f52e71d8e87d306cff8afd2acbad725c4cc92b6d7916a38c1d6d156feaec841966492d32394982ef51989e2b8673d7c00e103f744dd5

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\6Fk.tlb

    Filesize

    2KB

    MD5

    48e9706fe9f76731f3576122fc3e9e33

    SHA1

    387c8c4898ead8ace488a7df80fead429eaf167b

    SHA256

    7bad79916803a14ca817e5c39f5ec2f0f240044d6dc24fb4916c8fda338060f1

    SHA512

    e9b44a2b1b7a806066182a084ec9df81916fc6db79710256e173377e7cd64a732c006830bbe324a9a734731ecde8b8251cfa995399f6d4df5322faff99c458b6

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\OQK.dll

    Filesize

    203KB

    MD5

    41b13b132cb601ecc466654b90296353

    SHA1

    245258ddccb48826f22d57444f49fa30be1b36fd

    SHA256

    7fa4bb68c313e1090587a64b90e87bdcbc14ea3fb7c0e8cff94c657c969b70bf

    SHA512

    0e8de7bbe3695848e299fe3f3506f2e982a60cf0a0dd11cde86de4af67ef3c7b46458680d7bad9cedaa266ea33cb2e77f2aa83fcf1bdd20bf31d1936f2bd69a6

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\Preferences.C__Users_Admin_AppData_Local_Google_Chrome_User Data_Default_Preferences

    Filesize

    4KB

    MD5

    88fbd32cb514e113bf8ebc0356143ad1

    SHA1

    f410579e0e928b8383821fb33ce0b56855e897ee

    SHA256

    443490e92033de5c798cc60ad04fd8ea0dd3575ab537fb1dff990b1941bd6628

    SHA512

    d5bc39baee0489520b1260b9b6dbd1f42eba626e4334539931f4027c542075f3fd211efa7fbe273571ab42dfddc2a77a260b00ea66d6ba3204ac452829231c1e

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\flllcnpggaoipehoaojgdhfoelbdadea\1vi3.js

    Filesize

    5KB

    MD5

    c7bd63cdcc0d670634836dd7ecb2b41d

    SHA1

    ef62f61e6129778e142f92009a2076f0b7708c90

    SHA256

    11ae7186a3375b758d670284a0440fab86a1115a38976ef2002d33a9457cbc28

    SHA512

    733226f4c79c2e5fe0fb8add65d5d991976da5d80e5a548841d61d990c82fb6690820d77ccdc50b3ca4e54d0536112dc9f7f36b9a2999476e4623947f2ec255d

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\flllcnpggaoipehoaojgdhfoelbdadea\background.html

    Filesize

    141B

    MD5

    2f33151d221374ec3bba2844ca4ff936

    SHA1

    f9d845832366a148ce6450acb0dea746add49bbc

    SHA256

    007e35cc126e2b9afef06e33f48e0ae2d507ca667f4990a25e0b588289d703c1

    SHA512

    0e416aa23ce3a57f351c94ff7cf1f7c23a368c7877a0ad530cb3f540af11dbc21102fa5f189d03c3b61bd2ac3418c4014f522b6224184fa6977f3f9f863ce644

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\flllcnpggaoipehoaojgdhfoelbdadea\content.js

    Filesize

    197B

    MD5

    5f9891607f65f433b0690bae7088b2c1

    SHA1

    b4edb7579dca34dcd00bca5d2c13cbc5c8fac0de

    SHA256

    fb01e87250ac9985ed08d97f2f99937a52998ea9faebdc88e4071d6517e1ea6b

    SHA512

    76018b39e4b62ff9ea92709d12b0255f33e8402dfc649ed403382eebc22fb37c347c403534a7792e6b5de0ed0a5d97a09b69f0ffc39031cb0d4c7d79e9440c7c

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\flllcnpggaoipehoaojgdhfoelbdadea\lsdb.js

    Filesize

    559B

    MD5

    209b7ae0b6d8c3f9687c979d03b08089

    SHA1

    6449f8bff917115eef4e7488fae61942a869200f

    SHA256

    e3cf0049af8b9f6cb4f0223ccb8438f4b0c75863684c944450015868a0c45704

    SHA512

    1b38d5509283ef25de550b43ef2535dee1a13eff12ad5093f513165a47eec631bcc993242e2ce640f36c61974431ae2555bd6e2a97aba91eb689b7cd4bf25a25

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\flllcnpggaoipehoaojgdhfoelbdadea\manifest.json

    Filesize

    505B

    MD5

    213d25806e2f0b520f91ade6a1d1b92d

    SHA1

    646bfe9508cb704da8fd96dda176f5889107d9cc

    SHA256

    9aaf96d889eddc4ce91d5ebc7665a83dd1b6eceaf7e302658476be2a62c0b9eb

    SHA512

    9f609d8b07420edabfeee39e84964cad7e201854c9b15c40e109b775894210b22bc910fe8e33a8a9852e6f618d6c3131964bd4335585bfa22cee8b249e0741aa

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\flllcnpggaoipehoaojgdhfoelbdadea\sqlite.js

    Filesize

    1KB

    MD5

    8939dcac39af5c22901d3d662ad03012

    SHA1

    bbafe4035a84130a8acdbd0b3b1144bbbd1d69be

    SHA256

    553464fe0e33d334f4d6b2a9f5c13525cf7d5ecb37708b37edf90e712de5dee6

    SHA512

    aae5af4e4d066d8c6d15297c2abcdcce2461fd14d20ab482fc2d0610ec70748f5f9e01271438ebd34637a9e0a5bfcf17398ee0183fae4c10e562841e0e87b1d1

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    320a542ab86e6f44f359272361b171a3

    SHA1

    d221e24bda226dfcab078806887c4fc9f4265ca8

    SHA256

    aacd1bbfa65d2814ccbe5169a647c69aa214aceab0a9ee033fcd13937f67e554

    SHA512

    a9ba103e6742cb7e2310bef57e4ad42a78d7095b87200b1ac3c6e70f7ff41ee32f3f43c7c4478d1028028f0d410de594f5daf4bc99c3118ec395124fd936aeb9

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\[email protected]\chrome.manifest

    Filesize

    100B

    MD5

    f02e929be70f2e6f442362865918b0c0

    SHA1

    713149d2257214425111cdacb326510c43127243

    SHA256

    51f9b8354d7d45f47f0911eeeeafd16ac7895cc8581c4fb716452ff175283daa

    SHA512

    6285c60fb68f80e18f33923cfe6ef799d33b606ac6932735b465b1712daba4bdcb788c5abbf5fdd1630075385ea64dddf23c0465fd009ece44736753b47d4b40

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\[email protected]\content\bg.js

    Filesize

    9KB

    MD5

    28be39fd6b1a834f3e9727250904d28b

    SHA1

    cff0e872110e4f41a3bdc8ff716e3546c0ccab94

    SHA256

    6cd7aab3e4783bdee5b25b424b330707e407e611d4df649e643c7ce5e6d48d57

    SHA512

    d097e6164616d22f32a1de9156a0aa5052e340b814f2dc21d2d17f88558516bddb27737c7aa31b7e95ca1e2ed72a916ff20d26902b87a2f27937980f65efb535

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\[email protected]\install.rdf

    Filesize

    605B

    MD5

    d63c839907a49d6e0011305bf7ac2ca9

    SHA1

    81462c227706db2df462cadc8a13bbd26d7daf3b

    SHA256

    7c6d594f8822ec91ab36a0265dceaab36e642c92244892331bd2e5f6130568de

    SHA512

    42ac12e9b72527899f63efbfc7d5c9b9a5d006faedd22f7423836be27272575b89734771c9b4dd199be1f08a2654c754e85439b79f2058e88b1b08847eba466d

  • C:\Users\Admin\AppData\Local\Temp\7zS9128.tmp\settings.ini

    Filesize

    7KB

    MD5

    7d8561949128b98a326262cafe2357a7

    SHA1

    3e8c15dfb0d35e4b45dcc6f7686c9450cab0bcb0

    SHA256

    3c67c0ee9a9e59f8313357f459183b0114ed66f56b71acfe922242fea77edba3

    SHA512

    c53667f10cc530584c49239370dc81dca7609fdc7fa742e39b10c9cc9d591bc2349d7ad2a2250ba7669455581f9100ece34402a8e72ac31d8005e7d4eb71c6c6