Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 13:17

General

  • Target

    uninst.exe

  • Size

    338KB

  • MD5

    3c03aa0a11686e0413a7f56b861972eb

  • SHA1

    d291d59d8dab8d1fd0c7873a529def7dd05cc0db

  • SHA256

    e613cbdca52993e08c6acbc750536b808f0e88024887867dc6cadf12aa9e93b1

  • SHA512

    d002b3c02d6a65f49cf4aeb9ffd5ba1d75b6c5c2d1a2e31d8378d3b83e7950b64c8fd94af817806b7ba9f7850b836ea6602b67364c26d17a87e6f1c496f6a829

  • SSDEEP

    6144:E8LxBLC70uYGxH8Eq4HIWuGV2w1FpVd0RQJuFwNTGlg/kV:vC7ikm4HIoYw1zVaRQowNTKgMV

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 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).

  • NSIS installer 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\uninst.exe
    "C:\Users\Admin\AppData\Local\Temp\uninst.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Users\Admin\AppData\Local\Temp\lq.exe
        "C:\Users\Admin\AppData\Local\Temp\lq.exe" /uninstallsucc
        3⤵
        • Writes to the Master Boot Record (MBR)
        • Suspicious behavior: EnumeratesProcesses
        PID:2808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\config.ini

    Filesize

    396B

    MD5

    f4553cbf4518de0387974425064c0dca

    SHA1

    7aba2ccda6c4dc2084e2d7e9bb9f0012023ad7d4

    SHA256

    71fcb99bb8b65d5d3fb7a5dfb09b93f7bee46b22434332c5fef74a2680c51b7b

    SHA512

    8b8ea5c2d07a639a77435012e4cf828745f35a1e83b2b7d330c98c10e5827ab0acd1ba005e3d02fbe1c8eb70b15aca70106c23d8488c4140b2e57967b760a667

  • \Users\Admin\AppData\Local\Temp\nsy3303.tmp\FindProcDLL.dll

    Filesize

    3KB

    MD5

    8614c450637267afacad1645e23ba24a

    SHA1

    e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

    SHA256

    0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

    SHA512

    af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

  • \Users\Admin\AppData\Local\Temp\nsy3303.tmp\inetc.dll

    Filesize

    20KB

    MD5

    50fdadda3e993688401f6f1108fabdb4

    SHA1

    04a9ae55d0fb726be49809582cea41d75bf22a9a

    SHA256

    6d6ddc0d2b7d59eb91be44939457858ced5eb23cf4aa93ef33bb600eb28de6f6

    SHA512

    e9628870feea8c3aaefe22a2af41cf34b1c1778c4a0e81d069f50553ce1a23f68a0ba74b296420b2be92425d4995a43e51c018c2e8197ec2ec39305e87c56be8

  • \Users\Admin\AppData\Local\Temp\~nsuA.tmp\Au_.exe

    Filesize

    338KB

    MD5

    3c03aa0a11686e0413a7f56b861972eb

    SHA1

    d291d59d8dab8d1fd0c7873a529def7dd05cc0db

    SHA256

    e613cbdca52993e08c6acbc750536b808f0e88024887867dc6cadf12aa9e93b1

    SHA512

    d002b3c02d6a65f49cf4aeb9ffd5ba1d75b6c5c2d1a2e31d8378d3b83e7950b64c8fd94af817806b7ba9f7850b836ea6602b67364c26d17a87e6f1c496f6a829

  • memory/2004-12-0x0000000010000000-0x0000000010003000-memory.dmp

    Filesize

    12KB