Analysis

  • max time kernel
    42s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19-11-2022 23:21

General

  • Target

    73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.exe

  • Size

    281KB

  • MD5

    27fac8e093b97674c878cfab16d30450

  • SHA1

    849d3438a30fd8a991f63450c4cc898de05184f6

  • SHA256

    73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6

  • SHA512

    87d3d1c73d09b3acdec31ada60ac2a5ce36fac5079148fbe26c15264af92628cea64e2a4f21c546437fa545b2836af1d03c87349b80efe299f250e4713ad16b6

  • SSDEEP

    3072:sr85CAFb6WsFCUdJvbrOLN0+1XkjC7fptD3cyVxpC8aVKhtsQKY8owIFnFRAY7v:k92bTc9dQJH0e3PfcKrKywiRP

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.exe
    "C:\Users\Admin\AppData\Local\Temp\73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.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:1276
    • C:\Users\Admin\AppData\Local\Temp\3582-490\73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.exe"
      2⤵
      • Executes dropped EXE
      PID:1704

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.exe

    Filesize

    240KB

    MD5

    c88f30ecb9a14338862f12a7cdf1f897

    SHA1

    09ae0ac425e144309e91f4f11ef9ef8bace50da8

    SHA256

    60f201f705cfa2d6c56c7d574283589507c6928bf9463388603a11d69565a900

    SHA512

    c688ef15d3a997159d5b3a4198758cfbc6bcc52455c7e0684e7359f72ed35bb7fb41d00ad8bc200bc3d31382bedc0f590f5f83f998805909366c979c79b6121c

  • \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\73e3ecac601aa269cda6e195a88bd469eafac8afad3ba3ea9664639c0a408ee6.exe

    Filesize

    240KB

    MD5

    c88f30ecb9a14338862f12a7cdf1f897

    SHA1

    09ae0ac425e144309e91f4f11ef9ef8bace50da8

    SHA256

    60f201f705cfa2d6c56c7d574283589507c6928bf9463388603a11d69565a900

    SHA512

    c688ef15d3a997159d5b3a4198758cfbc6bcc52455c7e0684e7359f72ed35bb7fb41d00ad8bc200bc3d31382bedc0f590f5f83f998805909366c979c79b6121c

  • memory/1276-54-0x00000000758B1000-0x00000000758B3000-memory.dmp

    Filesize

    8KB

  • memory/1704-56-0x0000000000000000-mapping.dmp