Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2023 14:22

General

  • Target

    39a6e471a9bc622f74a255595d092b9a.exe

  • Size

    662KB

  • MD5

    39a6e471a9bc622f74a255595d092b9a

  • SHA1

    49c16aefbe586e08e46ae8d863bc1b5e544441ed

  • SHA256

    b48c9cc1470787a06df5e3a8eb9d489d77ac022c23ea9538d34d852610804921

  • SHA512

    55abc38ed55f2e003f3addd0c610bdb3cdbc081a2ab0642da939545b9db73f26dc5be0e3d37c8e88f97226273181ce8be367d39f664ff3b89f81935dbfecef30

  • SSDEEP

    12288:NilOKNYkqi1r3iSFPUXo67taaYOIP+4PzazTVvLg5j0+P8ydaVoy7jQVOQFAm:MskYk/ANZVuzgs5j0OPcVoynZm

Malware Config

Extracted

Family

cryptbot

C2

lysayu42.top

morbyn04.top

Attributes
  • payload_url

    http://damhlu05.top/download.php?file=lv.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot payload 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of FindShellTrayWindow 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39a6e471a9bc622f74a255595d092b9a.exe
    "C:\Users\Admin\AppData\Local\Temp\39a6e471a9bc622f74a255595d092b9a.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    PID:2644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\UrbPobNtB07\Nx1YetWIqr.zip

    Filesize

    40KB

    MD5

    67322fae821f28ba37cb408f904641f0

    SHA1

    7791cd5cf4e56bdab759fe10e72dd04707e44165

    SHA256

    3f442e786f1dfccfb0912c73ce1e1ce1c5a8ca5aaaa9bb233ec0a3be1dc63542

    SHA512

    17ddb7571f6664bc3bfaf81d3f03b624f37af7427ede74d97baadf51f13fe73ed864513689a45f3e22bee098a5d2b1f17c6e93787b90da1417f3810b0819fefd

  • C:\Users\Admin\AppData\Local\Temp\UrbPobNtB07\_Files\_Information.txt

    Filesize

    5KB

    MD5

    131945d7934655bc6758f5ce32a52b81

    SHA1

    83ec1bc65b12f93720e42061f69a7edc2eef640e

    SHA256

    440abfd029814d55a71624797dedc8e4b01fb0e97e9e727a5b63c8afa6523aa5

    SHA512

    986b20454bd1618a25d9b9c85f8de197f2d016c5160b9da7d6fb60a9444fc1e0143dc3df4849804a59421b4990f78a88a82968ceea73a057b4205b69b99599a6

  • C:\Users\Admin\AppData\Local\Temp\UrbPobNtB07\_Files\_Screen_Desktop.jpeg

    Filesize

    47KB

    MD5

    195a744361203016f07235c1178af4b4

    SHA1

    1ed15a84bfe7788b7f9972fec738e687a320703c

    SHA256

    43750ecef0a4b61fde874aefa09771ae29ef15056ab1f3d59d48b88fcc34317b

    SHA512

    9ea4e19bc8558fe4c86210c244207909b141bf48a6d50add496cead1660159304d1420eff66103f59b60df7572117962009f7ebbb12a379eed6cda8080f4d982

  • C:\Users\Admin\AppData\Local\Temp\UrbPobNtB07\files_\system_info.txt

    Filesize

    4KB

    MD5

    a6589b4629fd566a9056e1fb3aca55fe

    SHA1

    51ef537629bd8be8b12a286e2c417b9dafa92b80

    SHA256

    3f489def7f7ee68c29693c8a03b9f971b5366fd3872e8588b330c0ea8336c308

    SHA512

    bbaa7758df35bf53798c81efdc3e5f27d3b09b19c6076676c3027db6717747ee48d56d1dd7e6a0065b4ed2c11afb7c9e48da5195d325d37e2834b09bd386f00e

  • memory/2644-1-0x0000000000250000-0x0000000000350000-memory.dmp

    Filesize

    1024KB

  • memory/2644-2-0x0000000000960000-0x0000000000A00000-memory.dmp

    Filesize

    640KB

  • memory/2644-3-0x0000000000400000-0x000000000095C000-memory.dmp

    Filesize

    5.4MB

  • memory/2644-4-0x0000000000C20000-0x0000000000C21000-memory.dmp

    Filesize

    4KB

  • memory/2644-221-0x0000000000400000-0x000000000095C000-memory.dmp

    Filesize

    5.4MB

  • memory/2644-223-0x0000000000250000-0x0000000000350000-memory.dmp

    Filesize

    1024KB

  • memory/2644-225-0x0000000000960000-0x0000000000A00000-memory.dmp

    Filesize

    640KB

  • memory/2644-227-0x0000000000C20000-0x0000000000C21000-memory.dmp

    Filesize

    4KB