Analysis

  • max time kernel
    43s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    03-07-2022 17:06

General

  • Target

    611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe

  • Size

    2.6MB

  • MD5

    3b416c2095061052a008216d775be8bb

  • SHA1

    5fb9da67483de48dfac9dfaf76761860b31b2c8f

  • SHA256

    611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94

  • SHA512

    ffa944230da1da7d95e501063bb39e25e1903c5ac0209c79d55a6e770c20831a682aa0385339cb60df4b76a1512821ca79e9e96155a4deaaf81f5c578f54fdf1

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe
    "C:\Users\Admin\AppData\Local\Temp\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Users\Admin\AppData\Local\Temp\3582-490\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1324

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe
    Filesize

    2.6MB

    MD5

    e81e28d03c3b7d2e2540af6d7e315ddf

    SHA1

    e0d6a81de02e38007886150fd2fda51f8ce06fa0

    SHA256

    1992747bddfe476d99adf909fcc89e00e9219688f878e08323910835008efe3d

    SHA512

    02495e2eefef7683a605889c3b3388bf5255e12e86bba327370597e3b0e43db6f03bf7bd5a45a8c4411e0507fc9993b7c7ce0e75cb59d54b46dc5ef41efe67a1

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe
    Filesize

    2.6MB

    MD5

    e81e28d03c3b7d2e2540af6d7e315ddf

    SHA1

    e0d6a81de02e38007886150fd2fda51f8ce06fa0

    SHA256

    1992747bddfe476d99adf909fcc89e00e9219688f878e08323910835008efe3d

    SHA512

    02495e2eefef7683a605889c3b3388bf5255e12e86bba327370597e3b0e43db6f03bf7bd5a45a8c4411e0507fc9993b7c7ce0e75cb59d54b46dc5ef41efe67a1

  • \Users\Admin\AppData\Local\Temp\3582-490\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe
    Filesize

    2.6MB

    MD5

    e81e28d03c3b7d2e2540af6d7e315ddf

    SHA1

    e0d6a81de02e38007886150fd2fda51f8ce06fa0

    SHA256

    1992747bddfe476d99adf909fcc89e00e9219688f878e08323910835008efe3d

    SHA512

    02495e2eefef7683a605889c3b3388bf5255e12e86bba327370597e3b0e43db6f03bf7bd5a45a8c4411e0507fc9993b7c7ce0e75cb59d54b46dc5ef41efe67a1

  • \Users\Admin\AppData\Local\Temp\3582-490\611d2e9c8a91722c4c27a260eeb068fb143a93c54d28312e1b2f95d61651ed94.exe
    Filesize

    2.6MB

    MD5

    e81e28d03c3b7d2e2540af6d7e315ddf

    SHA1

    e0d6a81de02e38007886150fd2fda51f8ce06fa0

    SHA256

    1992747bddfe476d99adf909fcc89e00e9219688f878e08323910835008efe3d

    SHA512

    02495e2eefef7683a605889c3b3388bf5255e12e86bba327370597e3b0e43db6f03bf7bd5a45a8c4411e0507fc9993b7c7ce0e75cb59d54b46dc5ef41efe67a1

  • memory/1324-56-0x0000000000000000-mapping.dmp
  • memory/1324-58-0x000007FEFB671000-0x000007FEFB673000-memory.dmp
    Filesize

    8KB

  • memory/1808-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp
    Filesize

    8KB