Analysis

  • max time kernel
    134s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    13-07-2021 13:01

General

  • Target

    495edc6456f3c1d7dcdf839ec8a1fc70.exe

  • Size

    935KB

  • MD5

    495edc6456f3c1d7dcdf839ec8a1fc70

  • SHA1

    fe30c475e506a76be7ea15c4f529938062718276

  • SHA256

    3504fe4b0e2d093c366cffa43ceb37026d7a5f8e35498aa7945556c77ecce731

  • SHA512

    b2122cd4b6a1b1f46f8e3b970ccd786ca6a07a554772a7ddebab9d7dc42ea7a12288debdccc3ec5af63fd6d707b3e804e3e13cfd2d4fbe7e2aec11abea4e1b1a

Malware Config

Signatures

  • A310logger

    A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty Payload 2 IoCs
  • A310logger Executable 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\495edc6456f3c1d7dcdf839ec8a1fc70.exe
    "C:\Users\Admin\AppData\Local\Temp\495edc6456f3c1d7dcdf839ec8a1fc70.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Users\Admin\AppData\Local\Temp\495edc6456f3c1d7dcdf839ec8a1fc70.exe
      "C:\Users\Admin\AppData\Local\Temp\495edc6456f3c1d7dcdf839ec8a1fc70.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\PASSWORDSNET4.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\PASSWORDSNET4.exe
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        PID:4092
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CREDITCARDNET4.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\NET4\CREDITCARDNET4.exe
        3⤵
        • Executes dropped EXE
        PID:4068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2628-124-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2628-134-0x0000000002E00000-0x0000000002E02000-memory.dmp

    Filesize

    8KB

  • memory/2628-128-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/3904-120-0x0000000005760000-0x0000000005C5E000-memory.dmp

    Filesize

    5.0MB

  • memory/3904-123-0x0000000007720000-0x0000000007790000-memory.dmp

    Filesize

    448KB

  • memory/3904-122-0x0000000007670000-0x000000000771A000-memory.dmp

    Filesize

    680KB

  • memory/3904-121-0x0000000003050000-0x0000000003060000-memory.dmp

    Filesize

    64KB

  • memory/3904-114-0x0000000000E90000-0x0000000000E91000-memory.dmp

    Filesize

    4KB

  • memory/3904-118-0x0000000005790000-0x0000000005791000-memory.dmp

    Filesize

    4KB

  • memory/3904-119-0x0000000005AC0000-0x0000000005AC1000-memory.dmp

    Filesize

    4KB

  • memory/3904-117-0x0000000005800000-0x0000000005801000-memory.dmp

    Filesize

    4KB

  • memory/3904-116-0x0000000005C60000-0x0000000005C61000-memory.dmp

    Filesize

    4KB

  • memory/4068-138-0x00000000000F0000-0x00000000000F1000-memory.dmp

    Filesize

    4KB

  • memory/4092-132-0x0000000000E50000-0x0000000000E51000-memory.dmp

    Filesize

    4KB