Analysis

  • max time kernel
    1800s
  • max time network
    1803s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-02-2024 18:39

General

  • Target

    infectprint1.exe

  • Size

    79KB

  • MD5

    0d4af64eb1995e67483f1ac5cde08aa3

  • SHA1

    e12cb2931e67de580a8342bc478ef92e582b49ac

  • SHA256

    580755838d3205f51c43877d96f43572dc53d6d8f94cf59ecdf5f5b3384f2b31

  • SHA512

    7cd5124215968e3517c6c7cf1f62dcbc6c1295a1e8e200744e10375625e953eb5f376008abbe0e8524bd7a60193458123b372c342ab474a372b3f9cafe57e8fa

  • SSDEEP

    1536:Oaci2JuhUKuTJk/K7t5bpQrnPheGIFZXDF5TBjg:6vnb+r2Ny

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

i-miss-u

C2

2.tcp.eu.ngrok.io:18876

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 7 IoCs
  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Views/modifies file attributes 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\infectprint1.exe
    "C:\Users\Admin\AppData\Local\Temp\infectprint1.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Users\Admin\Documents\Svhostr.exe
      "C:\Users\Admin\Documents\Svhostr.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2292
      • C:\Users\Admin\AppData\Local\Temp\pronto.exe
        "C:\Users\Admin\AppData\Local\Temp\pronto.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1832
        • C:\Windows\SysWOW64\attrib.exe
          attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe"
          4⤵
          • Drops startup file
          • Views/modifies file attributes
          PID:1944
        • C:\Windows\SysWOW64\attrib.exe
          attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.exe"
          4⤵
          • Views/modifies file attributes
          PID:1772
      • C:\Windows\SysWOW64\attrib.exe
        attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\pronto.exe"
        3⤵
        • Views/modifies file attributes
        PID:1548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

    Filesize

    1KB

    MD5

    84b622ed5b0e9c8d4c8c3008d4254677

    SHA1

    f9b4b8f7b0462892f726c8a5c21057ddd8c76a4c

    SHA256

    51474d9c9280e042639b0b9f6a9edbb8bdfc71ecc2164a791fb6ea6b2f127dde

    SHA512

    8067713c9e0738547f87339d79fb842878760b63e71fa67e69fd265e5c3fa9a556e2bd0b71dd25d772266724a1d28e3208c9991e2967715563abc81dbcda586c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

    Filesize

    1018B

    MD5

    51560c705c62a26cb5b5521b4905a44e

    SHA1

    69970ce31953272fa5c79576800bd21fff224a2a

    SHA256

    ecc1a81a9704c3d166ca447ac51c8c376e97def16384df746fe7811375c4efd8

    SHA512

    33a4422d348ddaca2b5169ac347499b1263d1790f7f1f11e8ab3cf66b08d3ec7caab387bf34c6407a41fc54ef8ba51633ff7f976d4ac911721bec04293bad7e7

  • C:\Users\Admin\Documents\Svhostr.exe

    Filesize

    27KB

    MD5

    c596af6b612263a4f8522e8ff345fd77

    SHA1

    26bd8d1eacb0940afbb3fc56ca3900e20a573a06

    SHA256

    ae46054bcc8861d767cf7c39d11e18aca0f9f393d6e26c779b95b12ddc725aa1

    SHA512

    185ca33f9579270ceeb08cd1cdaa2d9c3157e677eebe0ab54956106866f3fabf83aaa60f5db3944b47090e8550ff3ade4caab538f383a8bca32dd3f1ae9e6a11

  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInUtil.exe

    Filesize

    49KB

    MD5

    897681bd90084a77a020e501ac10a3ba

    SHA1

    21e29d76dead0989652406fcbeca3e56fdf5e6fa

    SHA256

    55a8e90f805e17632996da96c686e9788db59db2dfd3ba4529217dadc1c60634

    SHA512

    dbd8d8d306736f843c9cc765c5fd90ac5aa660ca15208a01ccf6a83c8ed863bc7cd3494a1d1258aa5a18bf013d16c54c8e6475b42480635411b31005018c9dc6

  • memory/1280-36-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/1280-77-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/1280-7-0x0000000001F50000-0x0000000001F68000-memory.dmp

    Filesize

    96KB

  • memory/1280-8-0x0000000001F30000-0x0000000001F6B000-memory.dmp

    Filesize

    236KB

  • memory/1280-9-0x0000000001F50000-0x0000000001F66000-memory.dmp

    Filesize

    88KB

  • memory/1280-10-0x0000000001F60000-0x0000000001F8A000-memory.dmp

    Filesize

    168KB

  • memory/1280-11-0x0000000000480000-0x0000000000488000-memory.dmp

    Filesize

    32KB

  • memory/1280-12-0x0000000001F60000-0x0000000001F86000-memory.dmp

    Filesize

    152KB

  • memory/1280-13-0x0000000001F50000-0x0000000001F6C000-memory.dmp

    Filesize

    112KB

  • memory/1280-14-0x000000001B090000-0x000000001B19A000-memory.dmp

    Filesize

    1.0MB

  • memory/1280-38-0x0000000001F50000-0x0000000001F64000-memory.dmp

    Filesize

    80KB

  • memory/1280-16-0x0000000001F50000-0x0000000001F70000-memory.dmp

    Filesize

    128KB

  • memory/1280-17-0x0000000001F60000-0x0000000001F86000-memory.dmp

    Filesize

    152KB

  • memory/1280-18-0x000000001AE90000-0x000000001AF29000-memory.dmp

    Filesize

    612KB

  • memory/1280-19-0x0000000000460000-0x0000000000466000-memory.dmp

    Filesize

    24KB

  • memory/1280-20-0x0000000000460000-0x000000000046E000-memory.dmp

    Filesize

    56KB

  • memory/1280-21-0x000000001AE90000-0x000000001AF88000-memory.dmp

    Filesize

    992KB

  • memory/1280-22-0x0000000001F30000-0x0000000001FA0000-memory.dmp

    Filesize

    448KB

  • memory/1280-23-0x0000000001F30000-0x0000000001F9D000-memory.dmp

    Filesize

    436KB

  • memory/1280-24-0x0000000001F60000-0x0000000001F86000-memory.dmp

    Filesize

    152KB

  • memory/1280-25-0x0000000001F30000-0x0000000001F6B000-memory.dmp

    Filesize

    236KB

  • memory/1280-26-0x0000000001F50000-0x0000000001F62000-memory.dmp

    Filesize

    72KB

  • memory/1280-27-0x0000000001F50000-0x0000000001F6C000-memory.dmp

    Filesize

    112KB

  • memory/1280-28-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/1280-30-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-31-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/1280-32-0x0000000001F50000-0x0000000001F6E000-memory.dmp

    Filesize

    120KB

  • memory/1280-33-0x0000000001F50000-0x0000000001F6E000-memory.dmp

    Filesize

    120KB

  • memory/1280-34-0x0000000000480000-0x0000000000488000-memory.dmp

    Filesize

    32KB

  • memory/1280-35-0x0000000000480000-0x0000000000488000-memory.dmp

    Filesize

    32KB

  • memory/1280-3-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/1280-6-0x0000000001F60000-0x0000000001F86000-memory.dmp

    Filesize

    152KB

  • memory/1280-15-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-39-0x0000000000480000-0x0000000000490000-memory.dmp

    Filesize

    64KB

  • memory/1280-40-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-41-0x0000000001F60000-0x0000000001F8A000-memory.dmp

    Filesize

    168KB

  • memory/1280-42-0x000000001B090000-0x000000001B165000-memory.dmp

    Filesize

    852KB

  • memory/1280-43-0x0000000001F60000-0x0000000001F88000-memory.dmp

    Filesize

    160KB

  • memory/1280-44-0x0000000000480000-0x000000000048A000-memory.dmp

    Filesize

    40KB

  • memory/1280-45-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-46-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-47-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-48-0x0000000001F50000-0x0000000001F64000-memory.dmp

    Filesize

    80KB

  • memory/1280-49-0x0000000001F50000-0x0000000001F68000-memory.dmp

    Filesize

    96KB

  • memory/1280-50-0x0000000001F50000-0x0000000001F68000-memory.dmp

    Filesize

    96KB

  • memory/1280-51-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-53-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-55-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-5-0x0000000001F50000-0x0000000001F6A000-memory.dmp

    Filesize

    104KB

  • memory/1280-57-0x0000000000480000-0x0000000000490000-memory.dmp

    Filesize

    64KB

  • memory/1280-59-0x0000000000480000-0x000000000048E000-memory.dmp

    Filesize

    56KB

  • memory/1280-61-0x0000000001F60000-0x0000000001F82000-memory.dmp

    Filesize

    136KB

  • memory/1280-63-0x0000000001F50000-0x0000000001F6C000-memory.dmp

    Filesize

    112KB

  • memory/1280-65-0x0000000001F60000-0x0000000001F8C000-memory.dmp

    Filesize

    176KB

  • memory/1280-67-0x0000000001F50000-0x0000000001F64000-memory.dmp

    Filesize

    80KB

  • memory/1280-69-0x0000000000480000-0x0000000000488000-memory.dmp

    Filesize

    32KB

  • memory/1280-71-0x0000000001F50000-0x0000000001F6A000-memory.dmp

    Filesize

    104KB

  • memory/1280-73-0x0000000000480000-0x000000000048C000-memory.dmp

    Filesize

    48KB

  • memory/1280-75-0x0000000000480000-0x000000000048E000-memory.dmp

    Filesize

    56KB

  • memory/1280-37-0x0000000000480000-0x000000000048E000-memory.dmp

    Filesize

    56KB

  • memory/1280-79-0x0000000001F70000-0x0000000001FB0000-memory.dmp

    Filesize

    256KB

  • memory/1280-0-0x0000000000160000-0x000000000017A000-memory.dmp

    Filesize

    104KB

  • memory/1280-2-0x000000001AE90000-0x000000001AEE6000-memory.dmp

    Filesize

    344KB

  • memory/1280-1-0x000007FEF58A0000-0x000007FEF628C000-memory.dmp

    Filesize

    9.9MB