Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 09:23

General

  • Target

    ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0N.exe

  • Size

    477KB

  • MD5

    01b6c978ec72ec29c155c78c9cf98ff0

  • SHA1

    df6d6199d0425561f01f353f8bd63d6b761631ef

  • SHA256

    ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0

  • SHA512

    fa2f801c374238bcfac60f5078ef7eec14848671a62b8ea019aac6a7c5c47195b960555c784e2d9d329bb17307f84d954564a3327ea916d53df4b0c961e8d404

  • SSDEEP

    3072:sr85CSLrUpV+46dC88GDa9Gf7Gla0SQv5d/Cr8nEfF5h56H5jJ2aZ4FhKnTEF9yk:k9i0/v5M8nE+H5jzrvekt5i/5iU

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

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

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0N.exe
    "C:\Users\Admin\AppData\Local\Temp\ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\ba7e19bc92b4521590729049b323863b67ad52aa9c6cb01d91796114e78826b0N.exe

    Filesize

    436KB

    MD5

    015683526a5bb5899cf229a8b73da051

    SHA1

    0f6433bee679981e8d0432126b778aa980d81fe8

    SHA256

    f736301e9a5744b6780164395b7a852e220a6eed4a86391f68ba1988c466b43d

    SHA512

    5b5223380fe7ef9e9c89e99142e550f2f702b3ecda9260ccded30a7d99d0ed17dc6981e3197261fad70138621f1d73d4543ad3f5a7c3d52c7ee0a9bd68a13ca9

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2580-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2580-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB