Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2024, 20:44

General

  • Target

    35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e.exe

  • Size

    747KB

  • MD5

    8e62bd548aabfb139621a304326654ae

  • SHA1

    20b64b76c88e225387cae355828a1081f2c74480

  • SHA256

    35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e

  • SHA512

    86f0ddb4ddbe512a21826d831941f228ea4610f612b7d4bb1f5eadd7b31aa27b939c536eefea38326ab1f001a175ead7876ffc89ba3e6aa00335e2f10d74fe1d

  • SSDEEP

    12288:Nmp6d74dwmC/YPwaZBSvaG47RR7ZdaCiBTi02Oay1/CoP6p5dUo8eelRNX9KkE55:7gG47RR5eTivy1/cpvUxeelRNX9JE5Mk

Malware Config

Signatures

  • Detect Neshta payload 2 IoCs
  • Neshta

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Loads dropped DLL 1 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • 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 4 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e.exe
    "C:\Users\Admin\AppData\Local\Temp\35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2192
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UTElmt.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2828
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UTElmt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA737.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2904
    • C:\Users\Admin\AppData\Local\Temp\35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e.exe
      "C:\Users\Admin\AppData\Local\Temp\35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e.exe"
      2⤵
      • 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
      PID:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{9A861~1\ose.exe

    Filesize

    186KB

    MD5

    ec157aba3f3929e45afa15a1c1e929e9

    SHA1

    93ed9716f252f63397fa4c610707250f63204e22

    SHA256

    0856fbd3723035a1b9e782c35d3be073aec3b43e8c6d12df3a326f67952f35ed

    SHA512

    28432c1439544bd1de736b5344d7da6884bbf69ced14f1b981edbee5001eecfa07c0332b53c66d6a31169620b120c44427ee835c2ad909a401c578bbe6cf6d0d

  • C:\Users\Admin\AppData\Local\Temp\tmpA737.tmp

    Filesize

    1KB

    MD5

    2af03cfd13f77a34fdc4cfb0c313285b

    SHA1

    1e2ffd8db901597a79b8bb82beaac82bb4646349

    SHA256

    fb5b01b3dc4f5504b2a3636bd6e7c9aada1d14ef3c0b596e84308c012e0752e8

    SHA512

    175f58205fc4e38514b4deb095521ac3b4e5d1b9f68ba5d6475a7e1ffe41035896cfb3d42b85ce57991f748a67bb301ea638b83ad9b2e02fe693cf3d71c144d0

  • C:\Users\Admin\AppData\Roaming\UTElmt.exe

    Filesize

    747KB

    MD5

    8e62bd548aabfb139621a304326654ae

    SHA1

    20b64b76c88e225387cae355828a1081f2c74480

    SHA256

    35845d281a91dae79912a7238697c8b1d074bbff2785b621e0836f7c01d80b6e

    SHA512

    86f0ddb4ddbe512a21826d831941f228ea4610f612b7d4bb1f5eadd7b31aa27b939c536eefea38326ab1f001a175ead7876ffc89ba3e6aa00335e2f10d74fe1d

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2192-3-0x00000000021C0000-0x00000000021D8000-memory.dmp

    Filesize

    96KB

  • memory/2192-5-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2192-6-0x0000000002140000-0x000000000214E000-memory.dmp

    Filesize

    56KB

  • memory/2192-7-0x00000000021E0000-0x00000000021F6000-memory.dmp

    Filesize

    88KB

  • memory/2192-8-0x0000000004E00000-0x0000000004E72000-memory.dmp

    Filesize

    456KB

  • memory/2192-4-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/2192-2-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2192-1-0x0000000000A70000-0x0000000000B30000-memory.dmp

    Filesize

    768KB

  • memory/2192-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/2192-41-0x0000000074A00000-0x00000000750EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2604-32-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-26-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-24-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-22-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-20-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-18-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2604-31-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-28-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2604-16-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB