Analysis

  • max time kernel
    29s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 21:35

General

  • Target

    7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781aN.exe

  • Size

    1.3MB

  • MD5

    1057524b922956e9051a152b8e46d520

  • SHA1

    3e146141cf6f574bb3308abee1ece6d223ae380a

  • SHA256

    7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781a

  • SHA512

    5f69f2ec506263ec162f44adec335bcd0d4533d0ee83ca2c4f6c85349594bcbf374aea9c5bd04329de745d8bad7382deba1927ff54ce12070894e4a9f194b43a

  • SSDEEP

    24576:ErJM97lqsld7eLvcYrZ3vWWWhUo8f9gdeSklhopgsdC7tDJkfihY:6JM9xqY2F3vWNU9pS4sdytuae

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 5 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781aN.exe
    "C:\Users\Admin\AppData\Local\Temp\7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781aN.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:2280
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781aN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781aN.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:1072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\7ecbf6bbf0c079f9e9afed1eefcc1c93a0d5e7848c7fdb5d3b4169fd7c88781aN.exe

    Filesize

    1.3MB

    MD5

    519e5ec09926ac183c619cd4801fac74

    SHA1

    eba41bb2adfa7e68c185716a827ad6a6ddf611e3

    SHA256

    56bb6185ad2873f09e0a9c185616c7b01b33dcfb4e3ae89216f11a13586c2fbb

    SHA512

    d827fd8a5bba88a136a2721198512b1b8ded63706e6dd8d339d87300fd25a54544278c7b7aa14b2a40788394febcf6ce71c79c5c00ae4a9644c6b67774f8302f

  • \Users\Admin\AppData\Local\Temp\nst5A33.tmp\LockedList.dll

    Filesize

    28KB

    MD5

    2ee096682cc84f5fd44fb5291c00596c

    SHA1

    8dccebf054abe13e5b324dfdfbe6605553971396

    SHA256

    671570118024c9132f12999e198cebc87b3bf1846695553bf478c5a42efec226

    SHA512

    1ffdc3a5256b8eb62aff82c6429dcdf582009a908d43ab30d3fad84770b012be59c972323b6ae2b8d7ea2ae29d8ab3a99913205a0b33582e95dc813c31507d3d

  • \Users\Admin\AppData\Local\Temp\nst5A33.tmp\System.dll

    Filesize

    12KB

    MD5

    cff85c549d536f651d4fb8387f1976f2

    SHA1

    d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    SHA256

    8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    SHA512

    531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

  • \Users\Admin\AppData\Local\Temp\nst5A33.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    6c3f8c94d0727894d706940a8a980543

    SHA1

    0d1bcad901be377f38d579aafc0c41c0ef8dcefd

    SHA256

    56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2

    SHA512

    2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355

  • memory/2280-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2280-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB