Analysis

  • max time kernel
    34s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04-11-2024 05:50

General

  • Target

    e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6.exe

  • Size

    223KB

  • MD5

    acded267a37a9f4290219995a8be03f1

  • SHA1

    2355cc4498b487e5efa37758042769b05b098bb3

  • SHA256

    e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6

  • SHA512

    e0a0e20d7aa03eaacd1c5aa8f8e9cdf683718177502a80ffa1f4081d9f8ecf694c063678eeaed1564f8c1dd6eee5257346555126111409a720d2166844f620ae

  • SSDEEP

    3072:sr85CkChrKSVODFVpAhwqrbF9Zc7IlDBVlWfRp9g78+XL3qSULzYOr85CI9:k9kChrKpDAVPbScXVluRt+WSUHj9I9

Malware Config

Signatures

  • Detect Neshta payload 5 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 9 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 1 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6.exe
    "C:\Users\Admin\AppData\Local\Temp\e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6.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:2060
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2136
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2136 -s 168
        3⤵
        • Loads dropped DLL
        PID:1716

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\e1eda042de4b7978c70c03ffdc48ffe9e2ee9eb5c7a178b9733fc85692a30af6.exe

    Filesize

    182KB

    MD5

    e3c80d9228e133115d290281e836e1c5

    SHA1

    9b75abb1e09213c1f405f704d0fe48a692740cff

    SHA256

    c2696201d27b854069d614a74ff9a8b0d1940eab9d4a52bfefb7ba07a5651eb4

    SHA512

    4483aa6559e1c57437aab31b0f4139c7179b952d01e664067e078dad06f3e67dd2173c27134c260eb142e77b18bd3f7cd8c34bc43fd700c47e98420e4120c641

  • memory/2060-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2060-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2060-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2060-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB