Analysis

  • max time kernel
    94s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 00:35

General

  • Target

    a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe

  • Size

    2.3MB

  • MD5

    7c57d72004735616fb64f15e439f3750

  • SHA1

    63c082d942af68212e4b0531c75656ec41033b02

  • SHA256

    a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484

  • SHA512

    50d5ae04c02fad8d269d9b618e564a9529af50e4839713051eade001d70d806b483e140b023b7780ef916129861fe81dfac1f932939bf491b358892204c9f33f

  • SSDEEP

    49152:IreH0d/LXHncL2O4EOPOF45OMjUfkptVxftQHpn:IreUdD3cL749jUu5G

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

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

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 3 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 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe
    "C:\Users\Admin\AppData\Local\Temp\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe"
    1⤵
    • Checks computer location settings
    • 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:4224
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Users\Admin\AppData\Local\Temp\jds240612921.tmp\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe
        "C:\Users\Admin\AppData\Local\Temp\jds240612921.tmp\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe

    Filesize

    2.3MB

    MD5

    1c098b289611a95a1a84a77afe64620e

    SHA1

    3a13fea5daf0f6e9bc6932dfba6582c5420b8be5

    SHA256

    641d91c2036584022ff85c76450b367b7031dd2fc845a507c7b5948eeb2696fc

    SHA512

    80882b3ff1b4e2e65d7a2c7ace82708065d07820b5a30f845b5aebe9bc7ef6ea2461eef3b05858a115f7f36ea9121d6134ad99e25447e2b8e2c9dfa29f433dd7

  • C:\Users\Admin\AppData\Local\Temp\jds240612921.tmp\a8ac338ad84e6c3dfee4dde0ed049a9f451446eee55cc68a0443d7577224e484N.exe

    Filesize

    1.9MB

    MD5

    5fa91f525da5564ac9b1ab6462de47dc

    SHA1

    7a780289f3ea3ea6ab82f4e7d6f8642f4e2fe97a

    SHA256

    60e616a1676abc59b68c63ef64ac39cd66895ea52a858145af381be870f3a491

    SHA512

    884af87cd6208aa3155423bb5f5d2b92ea1b3a6b50fc26ca76aaa7f069e4c2794c03fa87079de25e332a0a9ea4198760b0dd4384ec8787c44f360a275a7d3490

  • C:\Users\Admin\AppData\Local\Temp\jusched.log

    Filesize

    164KB

    MD5

    988eb327133d6eea453624001abf1e03

    SHA1

    2f4b9ec5295b4fba4ef207b81c44cc81b587b50e

    SHA256

    6f27c2a7403d61818e8301c0cab0817821ce84588fde4ee7f3a81fb2b6748180

    SHA512

    273f5a6aa5183f8b3318339a44044757cf871a3a50309380cfdad8e87a848ebe5d28325d3d62b46cc921ef21d6ac0223dd4bf44a8c34ac883695089151d69f15

  • C:\Users\Admin\AppData\Local\Temp\jusched.log

    Filesize

    165KB

    MD5

    fd753f22bd6e15857879705371db2b5e

    SHA1

    f90a40f0189ca2689f294632dc30c0f76402371c

    SHA256

    348b70016dd08d53507d842e13552f15d0a9be5e606f9e0dcde1ea3fa7584d04

    SHA512

    48807054ba36661062fc5f529ada8d6982fb007b7feec325dee8275abc7600aab5299023ded54f3c8d188bbf6e343bb1d51d4af04730fba89ea60a468167350a

  • memory/4224-256-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4224-269-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4224-270-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4224-272-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB