Analysis

  • max time kernel
    140s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 03:34

General

  • Target

    eecbe0ee158252e585f11e95a43462649a90440717091cecc2d8b4e030ce6446.exe

  • Size

    264KB

  • MD5

    b07f706f25b6c1d3f9a62e3dd285f7c7

  • SHA1

    86a683855feb8ef56ae0060c10eef3cdbed4c4dc

  • SHA256

    eecbe0ee158252e585f11e95a43462649a90440717091cecc2d8b4e030ce6446

  • SHA512

    0f82fa6f36b770e4f0b79d2cffd2ba25be34037308650b503bc099979e07241da05ca07888e264120700fa7bef9b5746ebab247d99da13f5138e3285885f6ea2

  • SSDEEP

    6144:uf4/sJYWEbhtwaBV5ZFDQH7i6aEaS/vsd9YoeVjs:uf4QlGD3BV5ZFDfSRsd9YRBs

Malware Config

Signatures

  • Detects executables containing base64 encoded User Agent 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 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 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.

  • Drops file in Program Files directory 4 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eecbe0ee158252e585f11e95a43462649a90440717091cecc2d8b4e030ce6446.exe
    "C:\Users\Admin\AppData\Local\Temp\eecbe0ee158252e585f11e95a43462649a90440717091cecc2d8b4e030ce6446.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zvyqjld.exe "C:\Users\Admin\AppData\Local\Temp\eecbe0ee158252e585f11e95a43462649a90440717091cecc2d8b4e030ce6446.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2212
      • C:\Users\Admin\AppData\Local\Temp\zvyqjld.exe
        C:\Users\Admin\AppData\Local\Temp\\zvyqjld.exe "C:\Users\Admin\AppData\Local\Temp\eecbe0ee158252e585f11e95a43462649a90440717091cecc2d8b4e030ce6446.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3068
        • \??\c:\Program Files\fymwetb\aplkit.exe
          "c:\Program Files\fymwetb\aplkit.exe" "c:\Program Files\fymwetb\aplkit.dll",Cache C:\Users\Admin\AppData\Local\Temp\zvyqjld.exe
          4⤵
          • Executes dropped EXE
          • 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
          PID:2360

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \??\c:\Program Files\fymwetb\aplkit.dll
    Filesize

    188KB

    MD5

    860870fd39a21d219c4bc7a5409fe5cd

    SHA1

    5fa0f4918e853907273a26eb82452add6070bcfa

    SHA256

    af49bb1508c2e287c3fac8cbe33efe7ffe99f04358ec23192e1e86e4db552d3e

    SHA512

    a58c0c8de5afc4bd8c2ed1b039c0a08b10b02585ac07ee7880589214448b1d1dff6db05b24ef6e266cd00f574e01948fae0768f8527880933ad03fc41fc560e8

  • \Program Files\fymwetb\aplkit.exe
    Filesize

    43KB

    MD5

    51138beea3e2c21ec44d0932c71762a8

    SHA1

    8939cf35447b22dd2c6e6f443446acc1bf986d58

    SHA256

    5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

    SHA512

    794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

  • \Users\Admin\AppData\Local\Temp\zvyqjld.exe
    Filesize

    264KB

    MD5

    9a382aa0384ac5ac876b53503588c07f

    SHA1

    609735e179a9c07dd36667e7bd009d2d4c1da76a

    SHA256

    fb5d1573dac0b8b63a34298b1285eea7b46a71fc7476b13c89fbe074011de9c3

    SHA512

    4cba23be76b03904823450d3ea2dd02d7a37412663d5e9b27156691975e36b83f80eaae8e68c6ad2bbc061799084c02b5a1159dc5d5912244ff5b1ce38455889

  • memory/1244-2-0x0000000000400000-0x000000000048C050-memory.dmp
    Filesize

    560KB

  • memory/1244-0-0x0000000000400000-0x000000000048C050-memory.dmp
    Filesize

    560KB

  • memory/2360-22-0x0000000010000000-0x000000001006F000-memory.dmp
    Filesize

    444KB

  • memory/2360-25-0x0000000010000000-0x000000001006F000-memory.dmp
    Filesize

    444KB

  • memory/2360-23-0x0000000010000000-0x000000001006F000-memory.dmp
    Filesize

    444KB

  • memory/2360-26-0x0000000010000000-0x000000001006F000-memory.dmp
    Filesize

    444KB

  • memory/2360-28-0x0000000010000000-0x000000001006F000-memory.dmp
    Filesize

    444KB

  • memory/2480-8-0x0000000000400000-0x000000000048D000-memory.dmp
    Filesize

    564KB

  • memory/2480-7-0x0000000000400000-0x000000000048D000-memory.dmp
    Filesize

    564KB

  • memory/3068-16-0x0000000000400000-0x000000000048C050-memory.dmp
    Filesize

    560KB

  • memory/3068-9-0x0000000000400000-0x000000000048C050-memory.dmp
    Filesize

    560KB