Analysis

  • max time kernel
    5s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 02:33

General

  • Target

    e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe

  • Size

    858KB

  • MD5

    ede5cb2a3ce0048b7e1268130c38401b

  • SHA1

    d25ce1a276a66bff3d171c2c8d4adb1c5eac3b2c

  • SHA256

    e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9

  • SHA512

    38384bf53f7957eca018c470341390f79f1e0cac0777e9e523817bce80b865f400698af97a2bf31357302d7cfcaff7ddbb69d68b084bd8923d64298e9d6f234c

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 1 IoCs
  • Loads dropped DLL 2 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.

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe
    "C:\Users\Admin\AppData\Local\Temp\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.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:380
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:796
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 796 -s 668
        3⤵
        • Program crash
        PID:840

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe

    Filesize

    817KB

    MD5

    455a7a49838f70412d9d0542c9bf874b

    SHA1

    2625d1e2525fd4e24e4e0931cd5a400f4542414a

    SHA256

    3ee44bc6d231820d5b98111f2aeb27fc705f93fddae052a9b688fb1592ac301e

    SHA512

    45713176a501ce1b4ba141c515196aa02f72685033d7ddcdddbc87ef4dd05082bca7f945cfb514430d4179dfbb6db28f21d8864c5cd9317b4df35f70d981ab4b

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe

    Filesize

    817KB

    MD5

    455a7a49838f70412d9d0542c9bf874b

    SHA1

    2625d1e2525fd4e24e4e0931cd5a400f4542414a

    SHA256

    3ee44bc6d231820d5b98111f2aeb27fc705f93fddae052a9b688fb1592ac301e

    SHA512

    45713176a501ce1b4ba141c515196aa02f72685033d7ddcdddbc87ef4dd05082bca7f945cfb514430d4179dfbb6db28f21d8864c5cd9317b4df35f70d981ab4b

  • \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\e4d4d0c0f149471aadf4cb1a09a270b78dadd0ba673dbe3a535562c6d69e96f9.exe

    Filesize

    817KB

    MD5

    455a7a49838f70412d9d0542c9bf874b

    SHA1

    2625d1e2525fd4e24e4e0931cd5a400f4542414a

    SHA256

    3ee44bc6d231820d5b98111f2aeb27fc705f93fddae052a9b688fb1592ac301e

    SHA512

    45713176a501ce1b4ba141c515196aa02f72685033d7ddcdddbc87ef4dd05082bca7f945cfb514430d4179dfbb6db28f21d8864c5cd9317b4df35f70d981ab4b

  • memory/380-54-0x00000000765F1000-0x00000000765F3000-memory.dmp

    Filesize

    8KB

  • memory/796-56-0x0000000000000000-mapping.dmp

  • memory/796-59-0x0000000001100000-0x00000000011D4000-memory.dmp

    Filesize

    848KB

  • memory/796-60-0x000000001B130000-0x000000001B244000-memory.dmp

    Filesize

    1.1MB

  • memory/840-62-0x0000000000000000-mapping.dmp