Overview

overview

10

Static

static

10

5a1a37fb68...52.exe

windows7-x64

10

5a1a37fb68...52.exe

windows10-2004-x64

10

Resubmissions

22/05/2023, 08:14

230522-j48vdafa3410

30/03/2023, 14:59

230330-scqn6adb457

Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/05/2023, 08:14

Sharing

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General

  • Target
    5a1a37fb68eeb445df8c647dab8af952.exe
  • Size 48KB
  • Sample230522-j48vdafa34
  • SHA256 631d7e6e0d9b03928ea24c0f846e3aad741bd675b8837035e8bdc028dc25fc98
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
gurcuspywarestealer

Malware Config

Extracted

Family

  • gurcu

C2

  • https://api.telegram.org/bot6288342522:AAFSUbGsrmP7ztzdv4uDMwLGETn2Ea_tq1M/sendMessage?chat_id=1953693386

Signatures

  • Gurcu, WhiteSnake

    Gurcu is a malware stealer written in C#.

    stealergurcu
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a1a37fb68eeb445df8c647dab8af952.exe
    "C:\Users\Admin\AppData\Local\Temp\5a1a37fb68eeb445df8c647dab8af952.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\5a1a37fb68eeb445df8c647dab8af952.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1752
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:1828
        • C:\Windows\system32\PING.EXE
          ping 127.0.0.1
          3⤵
          • Runs ping.exe
          PID:3604

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1920-133-0x0000022444360000-0x0000022444372000-memory.dmp
          Download

          memory/1920-134-0x000002245E9E0000-0x000002245EA30000-memory.dmp
          Download

          memory/1920-135-0x000002245E880000-0x000002245E890000-memory.dmp
          Download