Analysis

  • max time kernel
    31s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2024 18:55

General

  • Target

    63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe

  • Size

    200KB

  • MD5

    6e537dfb72733f240cb6004e53181ed0

  • SHA1

    e40d8604b882a054a071adfc729576ef9f71d159

  • SHA256

    63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704

  • SHA512

    daa757ac1ed6ba2976e3730d45405bc4bc0bf328a579f3822a1e6c4bdde4f53bf77cacc148fd27182c4d9f2df0b9fce1b6bf17f9be96e3ede4b3b49434df9eaf

  • SSDEEP

    3072:sr85CLfT/o5NAQp/t75GeeDZdyBqvMwv7G+7fAmYuv7:k9LfBQp9VelCet

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.

  • 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 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
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe
    "C:\Users\Admin\AppData\Local\Temp\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.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:2136
    • C:\Users\Admin\AppData\Local\Temp\3582-490\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1188
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2736

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

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    fa3f5b9b0fa4cff915630ef5e479a837

    SHA1

    5649893ec82604c461478a92c99154a90bb01e4b

    SHA256

    673ee1e95add940585692f39b9844d9232a3604bb893e0de8b1b460f1ffb6c9b

    SHA512

    42f4b31d2991dbe5efd91aeaab34e50b7d39c91e716788045a95317bf87d6b9bfa32cf01c1ac0e2658eeef522bd1cabc94e9c2f84550681b74d20cfa8a76c5ed

  • C:\Users\Admin\AppData\Local\Temp\CabA21B.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarA22E.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \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\63e8b240b1dc72a039d1475107e361b38225812533f59cfc36e78a2318f6b704N.exe

    Filesize

    159KB

    MD5

    723e013e598bc231072dbdee6477b652

    SHA1

    7ebc21efe274888fbea4935cf2177a1820b66176

    SHA256

    7640eca5551e2b7c872525554cafb2f97706ff276db414d08e909ddd4fa828c1

    SHA512

    6f63dac481c948170816acb91bbb31931853a537dfefd332a95c4b84159246013c187eee5f05915733fcb6f8e5c49dc7dc4b25087118dd4011b13ca2772f7390

  • memory/2136-221-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2136-223-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2276-12-0x00000000746F1000-0x00000000746F2000-memory.dmp

    Filesize

    4KB

  • memory/2276-13-0x00000000746F0000-0x0000000074C9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2276-14-0x00000000746F0000-0x0000000074C9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2276-220-0x00000000746F0000-0x0000000074C9B000-memory.dmp

    Filesize

    5.7MB