Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 18:46

General

  • Target

    $TEMP/QuickStores_Unlocker.exe

  • Size

    425KB

  • MD5

    13e66d856d535b6739c1c634d915e0a8

  • SHA1

    8b8a2b930b31fbde7243d64fa03073fbfdfd85fd

  • SHA256

    40ad334f59cf5d27fb60cf3ce0e2ce423c781ec00b9e2a8d98aca91c6db7ecf2

  • SHA512

    921398bdfb0e1a755adf228fb0b8f29404c1bc8c7d784618ae3223af85625510c0c5d42020368f3b0def70403bf62752bbafd8f62e86e9ad05001182aa923cb7

  • SSDEEP

    6144:x/20g715fltZaDXy6VhYYFpPuZaSHQwNrj15WHMokC6ml6x8gtV81ohySfS:p20g7JtZaNzYworj1Ysokk6ig81ifS

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • 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 2 IoCs

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

  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
  • Modifies registry class 16 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$TEMP\QuickStores_Unlocker.exe
    "C:\Users\Admin\AppData\Local\Temp\$TEMP\QuickStores_Unlocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Local\Temp\is-POJMH.tmp\QuickStores_Unlocker.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-POJMH.tmp\QuickStores_Unlocker.tmp" /SL5="$400F4,166493,54272,C:\Users\Admin\AppData\Local\Temp\$TEMP\QuickStores_Unlocker.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\is-G8A45.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-G8A45.tmp\isxdl.dll

    Filesize

    58KB

    MD5

    792620390aae5305220283f2ce33ca68

    SHA1

    d9fee4cb3e2fa5e7d88b45662fd58b30aa9979f0

    SHA256

    21bc620515ebbdeb125d273c2d8db45577d05408ef624464af26afcfecfd201a

    SHA512

    470914116f40e4f7216c840ccbc706eb7953c10e62195c9b4d15e73f422625096df6c68edb33c25e2eec3305b4a1b159054f812c4a2307aeb3e49d35ae5f575c

  • \Users\Admin\AppData\Local\Temp\is-POJMH.tmp\QuickStores_Unlocker.tmp

    Filesize

    683KB

    MD5

    ce4e0ff83ac2a3256fd5c220562294a1

    SHA1

    72429c43cc4ed0a184a9c7b208902005489ff49a

    SHA256

    130ec61d37b76fa26a4c7ebcf210467c5be3ae2ace7346546c65f093478bb06b

    SHA512

    b375a78ca9b8e30ba665d3934716e5d3ac5737d8cf05a562f59c8b142923e3a79f1c44b55e995bd43fd0a9056a122cbe332d33947f626fa2d5bfb9f2e1824e98

  • \Users\Admin\AppData\Roaming\QuickStoresToolbar\Interop.SHDocVw.dll

    Filesize

    124KB

    MD5

    2613734670b491be45410d496cef7fa8

    SHA1

    5b9ae74a23e76863c025fdede54c4ee3316074fb

    SHA256

    d84e2fcb321bb969eebca48d44787fffc8016f70660c4a58e46589dd22906bda

    SHA512

    69dc8ad210361bce4c28b15ad31cfccb916557fd60d366642a90a37e046ba4b023c1d41833a15534ab9413f046a5af350403e44c7e80fc40eba58724c3d14c04

  • \Users\Admin\AppData\Roaming\QuickStoresToolbar\QuickStoresToolbar.dll

    Filesize

    39KB

    MD5

    5494d46cbe14a5e0644cb219c9ac2fea

    SHA1

    d90389af5872217a258e4c5c07b7d064f50deea8

    SHA256

    fd3c814cd7a101ae6d82e044e9bdfc3bccd0f8b402d8f028aca53dbddc00976d

    SHA512

    0e3d40af922e8a2a1ed8f3a92080ff937dc6c700f1c28f34505c9710e55db0ff6f30f20ec4d36f9640fc344d799b97064a6f6b63d8da86851000c7c67e3e324f

  • \Users\Admin\AppData\Roaming\QuickStoresToolbar\Update.exe

    Filesize

    44KB

    MD5

    723130df7bbca7fc4bfb1f829abd13b3

    SHA1

    b0b2c0a3e9915ef419d5fa4f7d8c662445d78c99

    SHA256

    0e7bcd39f8255eaa3c9dc017586fc52f6912c0c34fabea3143beef7b211ec4a6

    SHA512

    037ecae3012c8e7ce6ced6f9faf10c2ebd46a517b0be4f59696f1758502741b43e7600a675c9260efee29210ab9e47b58e663ac54a434ce271c5082bed77d77c

  • memory/2232-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2232-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/2232-66-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2700-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2700-30-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2700-65-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB