Analysis

  • max time kernel
    16s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    21-07-2024 15:31

General

  • Target

    e0d7f42183c642b5e4580a98ee8a34e0N.exe

  • Size

    302KB

  • MD5

    e0d7f42183c642b5e4580a98ee8a34e0

  • SHA1

    3013f64529aacefc81dc61b72b74fec40d3b9083

  • SHA256

    31ada4ac1a5daeaaec5ca29f1e58e7f106a320a4013c8f2bb52e7e9aa415fa4c

  • SHA512

    c426a04112a2a3c6683094baac2411e0084012824012f39db73f52480af7f112681b2f644ba08ac1535217c0177e2790366980c6e31749bfc92e8deb0b893f7b

  • SSDEEP

    6144:k9P9EG1RJjZCkfjhulqATR3g0Og85Ip+Yvac+AX/RMWiYV:8TjZQqAl3g0V85i+pc+AX/RMWiYV

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 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e0d7f42183c642b5e4580a98ee8a34e0N.exe
    "C:\Users\Admin\AppData\Local\Temp\e0d7f42183c642b5e4580a98ee8a34e0N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e0d7f42183c642b5e4580a98ee8a34e0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e0d7f42183c642b5e4580a98ee8a34e0N.exe"
      2⤵
      • Executes dropped EXE
      PID:2756

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\e0d7f42183c642b5e4580a98ee8a34e0N.exe

    Filesize

    261KB

    MD5

    239b0a418e12a752b079bde451d9834a

    SHA1

    1d6f7af3c7123e298c9bd65a703db2df59c88dc8

    SHA256

    b9a5870a734bce028f92067f0b0c20565e9623fe752bdb1c07e3b5a87c285797

    SHA512

    f56c2c7814f2bc0e2a699fc574fb4939adce483273eca89f430e4e0dc8235a336666241cd791faaf543f0db0ff69962fbcecce5ae3027aae5f50b79e3c5797dc

  • memory/2256-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2256-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB