Analysis

  • max time kernel
    121s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 01:40

General

  • Target

    231a343831ff5f7c300247441b973aae.exe

  • Size

    996KB

  • MD5

    231a343831ff5f7c300247441b973aae

  • SHA1

    d12ab4da1d8caa40549dc0208510ad2d05c73c50

  • SHA256

    63843f79934fd93fdd9bd572888f753ebea81c569812ba824376add2280837b4

  • SHA512

    094fb456fbacf5c11bf675cc6a9b9f3a4ba670b9eb5d565cf98bacf5086a50eaf0ce77dd33ae15fc31d71fb2cc9efed64a425ddb37fe3659dad9f0a589177491

  • SSDEEP

    24576:T95sjkZczo63M87oYbJd5A8uvK0vK8QL5HPf4xVv55:TfsloTYBbSDvK0vKPtvgxVvf

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 45 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\231a343831ff5f7c300247441b973aae.exe
    "C:\Users\Admin\AppData\Local\Temp\231a343831ff5f7c300247441b973aae.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Users\Admin\AppData\Local\Temp\nsoA075.tmp\215AppsChecker.exe
      C:\Users\Admin\AppData\Local\Temp\nsoA075.tmp\215AppsChecker.exe /checkispublisherinstalled
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1756
    • C:\Users\Admin\AppData\Local\Temp\nsoA075.tmp\dlhelpdl.exe
      C:\Users\Admin\AppData\Local\Temp\nsoA075.tmp\dlhelpdl.exe ~URL Parts Error~~~~URL Parts Error~URL Parts Error~~#~4346~4664~~URL Parts Error~~SendRequest Error~62-DD-1C-0E-CF-51~#~~SendRequest Error~~IE~~
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1264

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\nsoA075.tmp\Math.dll

          Filesize

          66KB

          MD5

          b140459077c7c39be4bef249c2f84535

          SHA1

          c56498241c2ddafb01961596da16d08d1b11cd35

          SHA256

          0598f7d83db44929b7170c1285457b52b4281185f63ced102e709bf065f10d67

          SHA512

          fbcb19a951d96a216d73b6b3e005338bbb6e11332c6cc8c3f179ccd420b4db0e5682dc4245bd120dcb67bc70960eab368e74c68c7c165a485a12a7d0d8a00328

        • \Users\Admin\AppData\Local\Temp\nsoA075.tmp\System.dll

          Filesize

          11KB

          MD5

          c17103ae9072a06da581dec998343fc1

          SHA1

          b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

          SHA256

          dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

          SHA512

          d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

        • \Users\Admin\AppData\Local\Temp\nsoA075.tmp\intlib.dll

          Filesize

          24KB

          MD5

          1efbbf5a54eb145a1a422046fd8dfb2c

          SHA1

          ec4efd0a95bb72fd4cf47423647e33e5a3fddf26

          SHA256

          983859570099b941c19d5eb9755eda19dd21f63e8ccad70f6e93f055c329d341

          SHA512

          7fdeba8c961f3507162eb59fb8b9b934812d449cc85c924f61722a099618d771fed91cfb3944e10479280b73648a9a5cbb23482d7b7f8bfb130f23e8fd6c15fb

        • \Users\Admin\AppData\Local\Temp\nsoA075.tmp\nsDialogs.dll

          Filesize

          9KB

          MD5

          c10e04dd4ad4277d5adc951bb331c777

          SHA1

          b1e30808198a3ae6d6d1cca62df8893dc2a7ad43

          SHA256

          e31ad6c6e82e603378cb6b80e67d0e0dcd9cf384e1199ac5a65cb4935680021a

          SHA512

          853a5564bf751d40484ea482444c6958457cb4a17fb973cf870f03f201b8b2643be41bccde00f6b2026dc0c3d113e6481b0dc4c7b0f3ae7966d38c92c6b5862e

        • memory/2288-65-0x00000000024B0000-0x00000000024CA000-memory.dmp

          Filesize

          104KB

        • memory/2288-191-0x0000000000880000-0x0000000000883000-memory.dmp

          Filesize

          12KB

        • memory/2288-182-0x0000000000880000-0x0000000000883000-memory.dmp

          Filesize

          12KB