Analysis

  • max time kernel
    97s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    23-05-2022 19:13

General

  • Target

    018a48a82f6db498a98111a5d4383d601beb34e25bc9fc1119f865a38de485c9.exe

  • Size

    1.9MB

  • MD5

    512721572ba9c81961af2f27c1fe5bf2

  • SHA1

    28e68776af8501ff05d570bb0dfe22a02953eb96

  • SHA256

    018a48a82f6db498a98111a5d4383d601beb34e25bc9fc1119f865a38de485c9

  • SHA512

    3f7fa629d7c467098a14b9932081a61dad68d63692b7b7a297ec88da29bff93ee96cc2d36f63e9204423b241c7edc62ec28d723e83f491446526b972e444f6ca

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 6 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\018a48a82f6db498a98111a5d4383d601beb34e25bc9fc1119f865a38de485c9.exe
    "C:\Users\Admin\AppData\Local\Temp\018a48a82f6db498a98111a5d4383d601beb34e25bc9fc1119f865a38de485c9.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Modifies registry class
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1280

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsy5E68.tmp\BDMDownload.dll
    Filesize

    158KB

    MD5

    b62367fe2d02b8f47914b088a006d50c

    SHA1

    3743c953e48e6f3f76689423ba9c1ed25e9f86d3

    SHA256

    cbd4c5b6b945620e8b65752dff5a0f0900fc5de2dda8daf3cdda68b1661420b7

    SHA512

    c010e3cc736ac1e10c6af44132d831df34d09bf1e7d1e96fb5c9f571cade04462d442c4b0fd84de92dc68d753a0beab0b4081122d53d516406f0d3c1ec1e0dbb

  • \Users\Admin\AppData\Local\Temp\nsy5E68.tmp\BDMNetGetInfo.dll
    Filesize

    314KB

    MD5

    12f98be1d919784370eb0f87e78b60d8

    SHA1

    d07de2227b2ec68545be0adeb042af457d68f9e2

    SHA256

    63e34375374ae6cc695c0bc03f1f9aad67e068fc51962fd25edbf2fbeceda9f9

    SHA512

    ab2fcdd3eb7b58f044a855b5cae744bc1b3be599cf0d22ee93ccce2e97cb3bc1f36ea2c1ed75013c76f8c9e4071ba29710595c3a57cda2470885ee9293fc2d8d

  • \Users\Admin\AppData\Local\Temp\nsy5E68.tmp\BDMSkin.dll
    Filesize

    1.3MB

    MD5

    39257175ac9c90199c69aea1a7bcbda0

    SHA1

    6cf4a8dedf37d24ce902f34fa66120a214e1a2cc

    SHA256

    84d5fb0a7cf1bc1e4bbd0de51d3b7eb04bb92af9a1fc3675601b382a5f11d9fc

    SHA512

    4a71d0ac3df53b25509205e9ed0bf781cbefa2ba6307501ae336488c8a3f7f627b8d01f861adbf47986e168abab5a06b36848f87cbcf27fe846e5f0ffc3a9f53

  • \Users\Admin\AppData\Local\Temp\nsy5E68.tmp\System.dll
    Filesize

    18KB

    MD5

    1c951bbcbc780046d6be1079a04870a4

    SHA1

    a5bae7d838973154e6fac69b1c5ff7d2cda01906

    SHA256

    d23676fbcf76355d1af68e7b32964b837243349920921b2ec74d97554809a65e

    SHA512

    62c3686baed2232f7d8ddc8f48a41761812b5b2a67f3a689b7a43275f077842366abc13c7e8259613bfd9df25cf467e4001337c1454aec910abce121d551e2d8

  • \Users\Admin\AppData\Local\Temp\nsy5E68.tmp\dl.dll
    Filesize

    1.9MB

    MD5

    763b532d651f0ad5e135d9b57bf4fba4

    SHA1

    23f1302f904a67a1fe0d48e11a435c2f36336196

    SHA256

    50b3c45ede6fd2d77c4f040242b2174289767b18a3a084e7046133b05f93e173

    SHA512

    a4ec0f5bfa30d3558935f4075a75aebf080ece324a550c573d8a424730693b030cd26b4862973e8da8937e610c287d64e96c2fd952b59324ed1822919a00737c

  • \Users\Admin\AppData\Local\Temp\nsy5E68.tmp\tmp_stdh2.dll
    Filesize

    2.7MB

    MD5

    06bde653e874a62bed365a55bab33a02

    SHA1

    96350ddbd3eca8365c8c14631dcd4e4bdd8d55ed

    SHA256

    12170d9a5c187057a01879992a513bf8aa66f48229472bbe18acc47da4538c92

    SHA512

    a5e2e9acb28cc8255822fedd37d0577ec5012f673abebe9036e38b1dc7d8a5079511a9e495b9b5c79d35391fe2218dcd036de5432deea3fc44984135841f134a

  • memory/1280-54-0x00000000756E1000-0x00000000756E3000-memory.dmp
    Filesize

    8KB

  • memory/1280-67-0x0000000005130000-0x000000000531D000-memory.dmp
    Filesize

    1.9MB