Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2024 17:44

General

  • Target

    e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe

  • Size

    2.3MB

  • MD5

    1b6bbbac92ebdd7181b0965c20dafa00

  • SHA1

    aecabe593ce021609caa20969fd843b2ea5a6c4f

  • SHA256

    e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258

  • SHA512

    ec3b87d3a587f8bea322a818e809aaa10510a0b35763961365ef17904302fbe902f6c4da8ff4d300fab99f203148728057135c6797f6b1f156c1ff3142e38f9f

  • SSDEEP

    24576:NJZm0D63sOfEchpCIgB8wbbFhd3xAJrjaTesDmi3/O0MN:rLlI4dfFnWJXa/DqN

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 2 IoCs
  • Loads dropped DLL 2 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 1 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe
    "C:\Users\Admin\AppData\Local\Temp\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.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:1976
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe"
      2⤵
      • Executes dropped EXE
      PID:2104

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

  • \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\e1db2bcda2f28da1f21ecb3c7b96b3f7a77056f0765d52880884c9fe1f235258N.exe

    Filesize

    2.2MB

    MD5

    5e16b050e7c1d5062e4cbb3dcf5298b1

    SHA1

    04505c918595fbf64e60e021a75c9268c0e7a634

    SHA256

    29d5d17f67a0aacaf73f870b79b26d2c73e0af618de9aabb8b7712f96d78c3c5

    SHA512

    6ae9c8d94868b96eb98fab590a222acf477146b6effd6fe1789759bc8f153068cc7462afb6636df947402567b791b9b463429a67dbcc78b193614cbb811aaa31

  • memory/1976-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1976-5-0x0000000002500000-0x00000000025DA000-memory.dmp

    Filesize

    872KB

  • memory/1976-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1976-91-0x0000000002500000-0x00000000025DA000-memory.dmp

    Filesize

    872KB

  • memory/2104-16-0x0000000076D70000-0x0000000076F19000-memory.dmp

    Filesize

    1.7MB

  • memory/2104-89-0x0000000140000000-0x00000001400DA000-memory.dmp

    Filesize

    872KB

  • memory/2104-90-0x0000000076D70000-0x0000000076F19000-memory.dmp

    Filesize

    1.7MB

  • memory/2104-14-0x0000000076D70000-0x0000000076F19000-memory.dmp

    Filesize

    1.7MB

  • memory/2104-13-0x0000000076DC1000-0x0000000076DC2000-memory.dmp

    Filesize

    4KB

  • memory/2104-9-0x0000000140000000-0x00000001400DA000-memory.dmp

    Filesize

    872KB