Resubmissions

30/03/2025, 00:32

250330-av58fsyk17 10

30/03/2025, 00:31

250330-at6slawvbx 10

04/03/2025, 10:29

250304-mjqd3sypv4 10

Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/03/2025, 00:31

General

  • Target

    564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe

  • Size

    1.1MB

  • MD5

    3fb887b5886aaf9b3b5103d868c56c84

  • SHA1

    7385b57e89da35b3aa2c3bbe26623c4179fc1abc

  • SHA256

    564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0

  • SHA512

    904f823dd256c256045f85f9ab0a0ac355689313ee57de58e8090a3e40d6ca92947229002ee7c6e828403ace4dd2e9606063d18fcb466f52e9f8f1e2cb03c937

  • SSDEEP

    24576:yBu2XV04jnHW8VwBYcOa3sM6zlYzLhQ0zJ68VQWWRWqMOoU:qu4jHmScOcsvWkq3+

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.

  • Neshta family
  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe
    "C:\Users\Admin\AppData\Local\Temp\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.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:2820
    • C:\Users\Admin\AppData\Local\Temp\3582-490\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2716

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\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • memory/2820-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2820-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB