Analysis

  • max time kernel
    124s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-11-2022 11:22

General

  • Target

    1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.exe

  • Size

    261KB

  • MD5

    570943e4fcbc41b074a7e61dd11422a0

  • SHA1

    3d941891f8b624324e975496fed9ed49b56d1f9a

  • SHA256

    1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c

  • SHA512

    cf5703975d242d229b106ee29ebf7d6fcebc21db7241ca0b5bc877ee0729feb90276f726c57d4470d4b75348e473f01578cf4ba87360d284f2b80b078111afad

  • SSDEEP

    3072:sr85CE73zbQ6NE3shCjtTo02pqDcn6WpjL1CrVheZgHwPmH0yeFF8CH:k9CbOshEGn1CrS+HA1H

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 2 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 AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.exe
    "C:\Users\Admin\AppData\Local\Temp\1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.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:1868
    • C:\Users\Admin\AppData\Local\Temp\3582-490\1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.exe

    Filesize

    221KB

    MD5

    fe7ffa07f6ae9b6c0c9f1ec006c4a94c

    SHA1

    1709987d14d98d43487fd759ce4f25a3dec403c7

    SHA256

    46d969c3b56a9dde4e87ca7d3d529cb44a50858a0e6647821353239c9176630a

    SHA512

    3bb180246aa2bb06968eb9a6fe2209d020f298f243f1262a42e531ee7034cabe39c33fa40e2ed5c24a43a41fc224cacdcc593c0fe2642d80cd152bc0179af8f5

  • \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\1fa731dc947a4d1ffc37a9b14bd78e005e2af428e8e664c7e99170579cfcab3c.exe

    Filesize

    221KB

    MD5

    fe7ffa07f6ae9b6c0c9f1ec006c4a94c

    SHA1

    1709987d14d98d43487fd759ce4f25a3dec403c7

    SHA256

    46d969c3b56a9dde4e87ca7d3d529cb44a50858a0e6647821353239c9176630a

    SHA512

    3bb180246aa2bb06968eb9a6fe2209d020f298f243f1262a42e531ee7034cabe39c33fa40e2ed5c24a43a41fc224cacdcc593c0fe2642d80cd152bc0179af8f5

  • memory/1868-54-0x0000000076681000-0x0000000076683000-memory.dmp

    Filesize

    8KB

  • memory/1944-56-0x0000000000000000-mapping.dmp