Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-12-2024 01:29

General

  • Target

    8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378bN.exe

  • Size

    2.0MB

  • MD5

    aa6c3a0e709eb4b7b4e072048307bd20

  • SHA1

    c8de9f1bcf5ff9571d2c77075ecb5dc8e08bb36a

  • SHA256

    8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378b

  • SHA512

    4095a0b9a894359f09e64f24123c75fc29c236cb9966fc5ef998ddee5f5b196c68d2e9410586e76dd6b25bd941950795710ab567e8c1123753718465fc2f9d7a

  • SSDEEP

    24576:X/Bq8qiAVKxZn27hSDiPzN5O7kXvk/0eQ3:X/BFmTPJ5O7Ak/0eQ3

Malware Config

Signatures

  • 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 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\8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378bN.exe
    "C:\Users\Admin\AppData\Local\Temp\8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378bN.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:2436
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378bN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378bN.exe"
      2⤵
      • Executes dropped EXE
      PID:1932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE

    Filesize

    859KB

    MD5

    754309b7b83050a50768236ee966224f

    SHA1

    10ed7efc2e594417ddeb00a42deb8fd9f804ed53

    SHA256

    acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6

    SHA512

    e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614

  • \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\8c526c95605696609a0dc22be1fbc39e88ff6def3ba05763fc923279b5d0378bN.exe

    Filesize

    2.0MB

    MD5

    3ee66d29ecf32cb5f83cd4f0f51a813a

    SHA1

    7a3ee917bc362074275814ebb8c8963821605a00

    SHA256

    06566111ff567e2a88093f6c14a370bbdca5a940fedbe9b92fe71e423753c77e

    SHA512

    c0a6bc270392d8a235c29ca73afdb613fb231d1dcbf663e09c4f2406031ba1ed22d2f2065f923772abe01e281b746e426e280684b372a9361918f88221e9d290

  • memory/2436-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2436-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB