Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 07:26

General

  • Target

    2024-10-01_7a0ec0db72b084f46348b055c7ce4a34_makop_neshta.exe

  • Size

    89KB

  • MD5

    7a0ec0db72b084f46348b055c7ce4a34

  • SHA1

    d2f9f41e5826f34e680e56dc0162bd219cf59098

  • SHA256

    e48904c3a631f353f6bf1cd3c2509464c86454db1d29bff26b489ffa563788d9

  • SHA512

    3c06796f43a38b5151e701594f38a95b5525670ece504715d0a85c29d61814813b67c3533a926ef551f76e3b5e49424327bdb9647f359c73dafadda7e992c127

  • SSDEEP

    1536:JxqjQ+P04wsmJCrb/eEExaD318HxZATvnsblYOIDQbj:sr85Crb/eECa318RZEvsbyOoQH

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • MAKOP ransomware payload 1 IoCs
  • Makop

    Ransomware family discovered by @VK_Intel in early 2020.

  • 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 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 use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-01_7a0ec0db72b084f46348b055c7ce4a34_makop_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-01_7a0ec0db72b084f46348b055c7ce4a34_makop_neshta.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:2948
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2024-10-01_7a0ec0db72b084f46348b055c7ce4a34_makop_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2024-10-01_7a0ec0db72b084f46348b055c7ce4a34_makop_neshta.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1976

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\2024-10-01_7a0ec0db72b084f46348b055c7ce4a34_makop_neshta.exe

    Filesize

    49KB

    MD5

    bd4da6badf73ab9d9352003f9322f262

    SHA1

    353db455d8ff8286713e648c6c58cfbb691955f4

    SHA256

    3664ff8050ccf9e6d73e197f43e23422dcc5bd738c4c5d90808370bc6dba7868

    SHA512

    60013e2a4f255c94caf350190f27ff763a8702e6778087538d1d72e9b19673697e8aa81ce9c4b14883a57a2fe71efdd07a463d714b305e9846c2c6296a19313b

  • memory/2948-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2948-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB