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Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23/07/2024, 01:19

General

  • Target

    a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe

  • Size

    95KB

  • MD5

    6a60b277429c8903dbc2956a56bc80de

  • SHA1

    fb0641f28f19f24906ca43d4a87636c60eb5f4a7

  • SHA256

    a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa

  • SHA512

    4a9b27645889b0e11074922e6f9f0cb4228a395bee03bef09677ce93af6c3b5b534bd49f83cba41a0ed2fd80be6a01ff2384d5ca145b4ee9ecf5dda00689fa7c

  • SSDEEP

    1536:1MIPgEm56wnbkKC2ZyBJU066lwLCRVEB+nR/y8cmNrEIviCOzuajkrDl9HNSjcU:11PgEOng1d66jRVa+n4NmNNouukrD7HG

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe
    "C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jluzw.exe "C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2164
      • C:\Users\Admin\AppData\Local\Temp\jluzw.exe
        C:\Users\Admin\AppData\Local\Temp\\jluzw.exe "C:\Users\Admin\AppData\Local\Temp\a8d86fc169f7d3936cc83adf94a4cf69dae5e72b3d2fd60a1af22202584d03aa.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2792
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\zxyvq\htkdczoy.tdh",crc32 C:\Users\Admin\AppData\Local\Temp\jluzw.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2020
          • \??\c:\windows\SysWOW64\taskkill.exe
            taskkill /f /im attrib.exe
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\zxyvq\htkdczoy.tdh

    Filesize

    57KB

    MD5

    2f53f49e01f09d6e6064871eec1955cd

    SHA1

    a6e1a6e5c2080d0fb2f7a872e3902a8a4a1a9b5f

    SHA256

    964e4dd2532d540bb61d3c7ccc833f2358d8cd6b2eabc3a2d51183a18b59f82d

    SHA512

    2cb98030c3df7417c04f796f78f23f96d381871d9c7ae4a14116764e915b2e2f56b9b3a6fb76fedc50a17788de9538fc7954a7b73bf17e4be43e1fc1a06bc218

  • \Users\Admin\AppData\Local\Temp\jluzw.exe

    Filesize

    96KB

    MD5

    45f5c396b97e0515ba058eb429c9bb17

    SHA1

    a5ae95c8bb720a09256c5ed85037a59e30d3f074

    SHA256

    0ebbeb660e3fe67a84eb099cfebe66b76f914bf35d3ef760c188cfa9015996f4

    SHA512

    2d23edca9678efa406c098693595b04b81d27c93b8c864066fcac39ddf786a43ed820d9916f4a3816429eb1e96e43752e003cbf7aca596a8b877737b2c34d084

  • memory/2020-15-0x0000000010000000-0x0000000010022000-memory.dmp

    Filesize

    136KB

  • memory/2020-16-0x0000000010000000-0x0000000010022000-memory.dmp

    Filesize

    136KB

  • memory/2020-20-0x0000000010000000-0x0000000010022000-memory.dmp

    Filesize

    136KB

  • memory/2020-21-0x0000000010000000-0x0000000010022000-memory.dmp

    Filesize

    136KB

  • memory/2020-22-0x0000000010000000-0x0000000010022000-memory.dmp

    Filesize

    136KB

  • memory/2360-3-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2360-1-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/2360-0-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2672-9-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2672-8-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2792-10-0x0000000000600000-0x0000000000601000-memory.dmp

    Filesize

    4KB

  • memory/2792-12-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB