Analysis

  • max time kernel
    92s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2024 14:12

General

  • Target

    2019111211292579875_BankInfo.exe

  • Size

    116KB

  • MD5

    88eaf0228d3e91df53e98cc856460d58

  • SHA1

    ff55b60f33dc532d3c3ead9efe2e44edf3e07b45

  • SHA256

    115f68c5b3dcdd290f1aed783b1485915fda14f9840b132f519e9eb67c561e41

  • SHA512

    062c26490796cef240aaced3a346d4ed55d32f91ef07f52b04eb9cd2a150d8e49774582a5f66b96c2e3394c63c84c94388a28959a95d2f63c136bf6e8e6d329f

  • SSDEEP

    1536:Jl1cZnZjQkVjKSeRyfwLAY1DqOwvRyNnZjQkVjKSuTN1:JlKPUkVjKVROwJJBwvReUkVjKvR1

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=1XjUHIgW5T6HcodhQNf4poqrFbSYVe2Qd

xor.base64

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Guloader payload 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2019111211292579875_BankInfo.exe
    "C:\Users\Admin\AppData\Local\Temp\2019111211292579875_BankInfo.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4168
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\2019111211292579875_BankInfo.exe"
      2⤵
        PID:4240
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        "C:\Users\Admin\AppData\Local\Temp\2019111211292579875_BankInfo.exe"
        2⤵
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        PID:3104

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3104-4-0x0000000000F40000-0x0000000001040000-memory.dmp

      Filesize

      1024KB

    • memory/3104-5-0x00000000772B1000-0x00000000773D1000-memory.dmp

      Filesize

      1.1MB

    • memory/4168-2-0x0000000002200000-0x0000000002208000-memory.dmp

      Filesize

      32KB

    • memory/4168-3-0x00000000772B1000-0x00000000773D1000-memory.dmp

      Filesize

      1.1MB

    • memory/4168-15-0x0000000002200000-0x0000000002208000-memory.dmp

      Filesize

      32KB

    • memory/4168-16-0x00000000772B1000-0x00000000773D1000-memory.dmp

      Filesize

      1.1MB

    • memory/4168-17-0x0000000002200000-0x0000000002208000-memory.dmp

      Filesize

      32KB