Analysis

  • max time kernel
    89s
  • max time network
    77s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-11-2024 18:39

General

  • Target

    636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe

  • Size

    59KB

  • MD5

    efd495722840bb313ca2fa9db1b724e0

  • SHA1

    ed6649f06f7a8553f03dc6648ec8a0be1bc2e5b3

  • SHA256

    636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056a

  • SHA512

    c3a416d202b44899e10b412c131f85f01be667cb10986d072e0be5aa5fdc9d1250bf07b00886d6f8b3f088cb77515abe39492f107dbec9e7e474d33550ce3665

  • SSDEEP

    1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8d:6n25DbaMySmJAhbvoutd

Malware Config

Extracted

Family

urelas

C2

218.54.47.76

218.54.47.77

218.54.47.74

Signatures

  • Urelas

    Urelas is a trojan targeting card games.

  • Urelas family
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 7 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe
    "C:\Users\Admin\AppData\Local\Temp\636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\biudfw.exe
      "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2156
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2160

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

    Filesize

    512B

    MD5

    b4a86880004da8726288d7ec954885a8

    SHA1

    1bab1cfbdc2c540246210bc7852f8fe7e8357b31

    SHA256

    c85016a9115aeb492bf116ab05791a9c3e6e30c39274767bd0476bd56a37db46

    SHA512

    22758f6c6de591c99f8f9857c1b03e55c242f0a4987d376b08c30bc608027d1574a228a8230099ddac2a3214663396b016e85d085204155a5ec26f87a28496b4

  • C:\Users\Admin\AppData\Local\Temp\sanfdr.bat

    Filesize

    340B

    MD5

    aaafcd6a3ecb49728947aeac3c474076

    SHA1

    71cb04a557ff0acc49b4a2feb6b0d8c43ce56dae

    SHA256

    8919962339bd5af66892ce18e8c15c47ee38b1efa49aa4e7e14a01f51ee65bee

    SHA512

    885be2378c459d4552555ad379d7e352d0638643a76370ddc1408b533a194b68b5c405dd1ac98546593924d28a29b1043771ea9b9aa6b3005abf119b7da5f668

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

    Filesize

    59KB

    MD5

    7ac778740b8b5f59ab7d5b9f5e7f104a

    SHA1

    bd7c43e2c2d469b32db096d087eef8e377f1b805

    SHA256

    a6429052e023ef98527ba85f18849c19a502de09d62bd8136e89ca59bf48a74c

    SHA512

    2cf8e15431ca7a286a09311faa33a47238606369bd34d5da23a2458013570f7bab8bab66a19ccba92b8453a6f9da13b13f7711e6ca5f2d18b5682c0644288c1b

  • memory/2156-10-0x0000000001220000-0x000000000124C000-memory.dmp

    Filesize

    176KB

  • memory/2156-22-0x0000000001220000-0x000000000124C000-memory.dmp

    Filesize

    176KB

  • memory/2156-25-0x0000000001220000-0x000000000124C000-memory.dmp

    Filesize

    176KB

  • memory/2156-31-0x0000000001220000-0x000000000124C000-memory.dmp

    Filesize

    176KB

  • memory/2364-0-0x0000000001330000-0x000000000135C000-memory.dmp

    Filesize

    176KB

  • memory/2364-9-0x0000000000970000-0x000000000099C000-memory.dmp

    Filesize

    176KB

  • memory/2364-19-0x0000000001330000-0x000000000135C000-memory.dmp

    Filesize

    176KB