Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-12-2023 09:28

General

  • Target

    C/ProgramData/Sentinel/AFUCache/fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3.exe

  • Size

    261KB

  • MD5

    9b3b95af652e2ed3472fc40a29d7c93d

  • SHA1

    8a9b4120d1c847c87ee51a7550c2085211c90403

  • SHA256

    fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3

  • SHA512

    cbcdb2e32bebc9f3f0e5c10ff9b773182c36740dbefd1b5b864317452ca287f34df6b2317f2aa4a58bc1e9f7bd013b18c56a58f5e63a4c8a3b81d51f09ef5528

  • SSDEEP

    3072:qf5szh5HyUGZ/cTW++pAA3MfmsKMoJRcVmFB6OPQJgbodwLcprQMdLWyNU1arzJV:7d5HyUGfxqu/RFB6us7rPDQuR2X/VW

Malware Config

Extracted

Family

mylobot

C2

eakalra.ru:1281

op17.ru:6006

ashfkwu.ru:9821

pomplus.ru:7372

fasefja.ru:3410

hpifnad.ru:3721

benkofx.ru:3333

fpzskbx.ru:9364

ouxtjzd.ru:8658

schwpxp.ru:2956

pspkgya.ru:2675

lmlwtdm.ru:2768

rzwnsph.ru:5898

awtiwzk.ru:9816

pzljenb.ru:3486

yhjtpyf.ru:3565

ogkbsoq.ru:2553

rjngcbj.ru:5655

jlfeopz.ru:4698

wqcruiz.ru:2165

Signatures

  • Mylobot

    Botnet which first appeared in 2017 written in C++.

  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 2 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\C\ProgramData\Sentinel\AFUCache\fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3.exe
    "C:\Users\Admin\AppData\Local\Temp\C\ProgramData\Sentinel\AFUCache\fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Users\Admin\AppData\Local\Temp\C\ProgramData\Sentinel\AFUCache\fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3.exe
      "C:\Users\Admin\AppData\Local\Temp\C\ProgramData\Sentinel\AFUCache\fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1120
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Windows\system32\svchost.exe"
        3⤵
        • Deletes itself
        • Adds Run key to start application
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2816
        • C:\Windows\SysWOW64\notepad.exe
          "C:\Windows\system32\notepad.exe"
          4⤵
            PID:2292

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\{EFAF4C8C-3C22-C897-86A4-6EBA58A713ED}\42109c13.exe

      Filesize

      261KB

      MD5

      9b3b95af652e2ed3472fc40a29d7c93d

      SHA1

      8a9b4120d1c847c87ee51a7550c2085211c90403

      SHA256

      fc33a7d5ca0ddb13d6264e1098b1c076cb1b5f2fded257e5723f71e10b7305e3

      SHA512

      cbcdb2e32bebc9f3f0e5c10ff9b773182c36740dbefd1b5b864317452ca287f34df6b2317f2aa4a58bc1e9f7bd013b18c56a58f5e63a4c8a3b81d51f09ef5528

    • memory/1120-1-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/1120-2-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/1120-3-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/1120-4-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/1120-13-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

    • memory/2292-18-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

      Filesize

      4KB

    • memory/2448-11-0x00000000001E0000-0x00000000001E1000-memory.dmp

      Filesize

      4KB

    • memory/2448-0-0x00000000001D0000-0x00000000001D1000-memory.dmp

      Filesize

      4KB

    • memory/2816-8-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-10-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-9-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-12-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-7-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-6-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-19-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB

    • memory/2816-5-0x00000000005C0000-0x00000000005EC000-memory.dmp

      Filesize

      176KB