Resubmissions

09-04-2024 13:12

240409-qfp6pafh29 10

09-04-2024 13:12

240409-qfpj6afh28 10

09-04-2024 13:12

240409-qfnymafh27 10

09-04-2024 13:12

240409-qfnb4afh26 10

08-04-2024 01:29

240408-bwbkxacg64 10

Analysis

  • max time kernel
    129s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2024 01:29

General

  • Target

    5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe

  • Size

    8.6MB

  • MD5

    0bba9ea4154714cec6d67a8788535723

  • SHA1

    4ae792b89db732e5c664bccaec9ef10797a8488d

  • SHA256

    5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b

  • SHA512

    6cb04eebd19aa8baff8853b5d7474b3f8feb86e0dcc4cc28035c3a44aaada61f6bd9beb7831d6f7e2f742665898994f9aec7264309c0c908e561cca21ee7e2a4

  • SSDEEP

    98304:D6cZV1QNa2cGlKTdAp1VdV/b+tAeGJwTt1BWmJwL+lTBHMjr33:ZZbQ5zdtb6p1BWYHG

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
    "C:\Users\Admin\AppData\Local\Temp\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe"
      2⤵
      • Executes dropped EXE
      PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    8ffc3bdf4a1903d9e28b99d1643fc9c7

    SHA1

    919ba8594db0ae245a8abd80f9f3698826fc6fe5

    SHA256

    8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6

    SHA512

    0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427

  • C:\Users\Admin\AppData\Local\Temp\3582-490\5a3bf0b8d1a106547a414123b92c2bbf0560d1f38599956335c2bc8c2c9f4e0b.exe

    Filesize

    8.6MB

    MD5

    dcb04bad2eb62d8e258a8038e741c554

    SHA1

    ba64b4b7134d9ccda5cdd3624cdc898e3778fb7f

    SHA256

    33049016dd8985e97e69d89cad74b59b06488310c0be86d0f83b10ee096b7875

    SHA512

    8f0fb5a453030850c37e6f3b8f94bc0eb04512c4810dfc5499289dc74b1d02c38e639947245e996cfb3398449395d3ba59f1513f5a9c3283dc4d268f0d7265c5

  • C:\Users\Admin\AppData\Roaming\tor\cached-microdesc-consensus.tmp

    Filesize

    2.6MB

    MD5

    76129b0242ac64dce87fb8de309df8ca

    SHA1

    c5b5aa6a7704fc20222d06ed851ca97693b04a6c

    SHA256

    fcca8d181451bab1df322ede8f0ae6ba0d508490d22d9f6ea54aca1eb5e7c81f

    SHA512

    19aade62bde4153c0cdae6b5d2b007641c5cbecb7a295c62a019bcb00ecf95f068ee5301250a58682c0cdf4ed4db11daf2f5a819d9a89711e233f048d3da5cd0

  • C:\Users\Admin\AppData\Roaming\tor\cached-microdescs.new

    Filesize

    6.6MB

    MD5

    f74f5bedf3ba3aa426f64ddca22024ef

    SHA1

    63f391dbffbf33eba3e6a67e8dac6bf34a103416

    SHA256

    2320bcfb3a3510f43e631e0e5e9437250be2b29974183a4df87a9a36dc6a670f

    SHA512

    d425ba1252fae448998193112f94e5a654832c3d366cfe6a637d513db8692ea52c7794385341969f3102d5cb46a75174d4ad4a86b024a0db600090a118bde14f

  • memory/5048-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5048-106-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5048-109-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB