Analysis

  • max time kernel
    159s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21-01-2022 23:41

General

  • Target

    fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627.exe

  • Size

    194KB

  • MD5

    1bdd22a17a650cff37601bfb7ff5de58

  • SHA1

    728fc6952f1d038bd1fdf01b44c4af05e363a4bb

  • SHA256

    fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627

  • SHA512

    6e7f19d4ff5709a4eccad60005c7c0d466ec395bb0a87da3ccedbea0a5bee2d2098165d3e765f06a1e2cb76387454397a2a68280b3f15a9c50ce2eb6e5c8e3bb

Score
10/10

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

VISTIMA

C2

trabajo2019.duckdns.org:2020

Mutex

ef4f7f28c949781a94b69311553c83e5

Attributes
  • reg_key

    ef4f7f28c949781a94b69311553c83e5

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627.exe
    "C:\Users\Admin\AppData\Local\Temp\fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sLniLRUBtoiL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1024.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1496
    • C:\Users\Admin\AppData\Local\Temp\fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627.exe
      "C:\Users\Admin\AppData\Local\Temp\fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1108
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3188
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sLniLRUBtoiL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp155F.tmp"
          4⤵
          • Creates scheduled task(s)
          PID:3076
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          "C:\Users\Admin\AppData\Local\Temp\server.exe"
          4⤵
          • Executes dropped EXE
          PID:808
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          "C:\Users\Admin\AppData\Local\Temp\server.exe"
          4⤵
          • Executes dropped EXE
          PID:828

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627.exe.log

    MD5

    040fd57b5b86666596a5b3aa2002cf64

    SHA1

    c8d3a3fb89157c7834a8a9c24e78dcb84795fd01

    SHA256

    0e61f93179dc2ac86a5bace7f556d7a8c54c5793a0d075fafb4bb43e439660d1

    SHA512

    a1eb0939b073484d39133f20dce1d40030472b1241aa32da3388c1433175f321c5557382e2bfbd95d24e783e12fc8f55c9adf833ef97bb356017defc73b1b3a3

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\server.exe.log

    MD5

    040fd57b5b86666596a5b3aa2002cf64

    SHA1

    c8d3a3fb89157c7834a8a9c24e78dcb84795fd01

    SHA256

    0e61f93179dc2ac86a5bace7f556d7a8c54c5793a0d075fafb4bb43e439660d1

    SHA512

    a1eb0939b073484d39133f20dce1d40030472b1241aa32da3388c1433175f321c5557382e2bfbd95d24e783e12fc8f55c9adf833ef97bb356017defc73b1b3a3

  • C:\Users\Admin\AppData\Local\Temp\server.exe

    MD5

    1bdd22a17a650cff37601bfb7ff5de58

    SHA1

    728fc6952f1d038bd1fdf01b44c4af05e363a4bb

    SHA256

    fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627

    SHA512

    6e7f19d4ff5709a4eccad60005c7c0d466ec395bb0a87da3ccedbea0a5bee2d2098165d3e765f06a1e2cb76387454397a2a68280b3f15a9c50ce2eb6e5c8e3bb

  • C:\Users\Admin\AppData\Local\Temp\server.exe

    MD5

    1bdd22a17a650cff37601bfb7ff5de58

    SHA1

    728fc6952f1d038bd1fdf01b44c4af05e363a4bb

    SHA256

    fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627

    SHA512

    6e7f19d4ff5709a4eccad60005c7c0d466ec395bb0a87da3ccedbea0a5bee2d2098165d3e765f06a1e2cb76387454397a2a68280b3f15a9c50ce2eb6e5c8e3bb

  • C:\Users\Admin\AppData\Local\Temp\server.exe

    MD5

    1bdd22a17a650cff37601bfb7ff5de58

    SHA1

    728fc6952f1d038bd1fdf01b44c4af05e363a4bb

    SHA256

    fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627

    SHA512

    6e7f19d4ff5709a4eccad60005c7c0d466ec395bb0a87da3ccedbea0a5bee2d2098165d3e765f06a1e2cb76387454397a2a68280b3f15a9c50ce2eb6e5c8e3bb

  • C:\Users\Admin\AppData\Local\Temp\server.exe

    MD5

    1bdd22a17a650cff37601bfb7ff5de58

    SHA1

    728fc6952f1d038bd1fdf01b44c4af05e363a4bb

    SHA256

    fdf4af9ad999272ebf9fa0c1d3c374615e2c8f2a5a5598f9d3ad1a0f3fd5a627

    SHA512

    6e7f19d4ff5709a4eccad60005c7c0d466ec395bb0a87da3ccedbea0a5bee2d2098165d3e765f06a1e2cb76387454397a2a68280b3f15a9c50ce2eb6e5c8e3bb

  • C:\Users\Admin\AppData\Local\Temp\tmp1024.tmp

    MD5

    1547bc72806ca9a29e05c911ae5ca7ea

    SHA1

    602a0e304d16fae9117af78611dac454fcd2d847

    SHA256

    12131697260b0ec21e482028f466f4845bbb756bc30aa53ae81be909183bb5a1

    SHA512

    2624608035446ece51fad079ac82d83f8a7a055b1e33e5bfc278f53bf0963f76bd6325dcb6dd848473581657908b244aebabaaba35198b389dc94b0da300cc3a

  • C:\Users\Admin\AppData\Local\Temp\tmp155F.tmp

    MD5

    1547bc72806ca9a29e05c911ae5ca7ea

    SHA1

    602a0e304d16fae9117af78611dac454fcd2d847

    SHA256

    12131697260b0ec21e482028f466f4845bbb756bc30aa53ae81be909183bb5a1

    SHA512

    2624608035446ece51fad079ac82d83f8a7a055b1e33e5bfc278f53bf0963f76bd6325dcb6dd848473581657908b244aebabaaba35198b389dc94b0da300cc3a

  • memory/828-131-0x0000000002750000-0x0000000002751000-memory.dmp

    Filesize

    4KB

  • memory/1108-122-0x0000000001320000-0x0000000001321000-memory.dmp

    Filesize

    4KB

  • memory/1108-120-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/3188-125-0x0000000002570000-0x0000000002571000-memory.dmp

    Filesize

    4KB

  • memory/3208-118-0x0000000001330000-0x0000000001331000-memory.dmp

    Filesize

    4KB