Resubmissions

14-09-2020 06:24

200914-mmrbznj1qe 10

13-09-2020 11:18

200913-whk6r9dztj 10

General

  • Target

    iu2YZH3U.tmp.exe

  • Size

    144KB

  • Sample

    200913-whk6r9dztj

  • MD5

    b7dde39920b3c3538087cea04bc6c604

  • SHA1

    7ce4f3e0a60d5385ae6ae0e614cc7fa11a7289e4

  • SHA256

    3b3989c2584a32c31604e474dda215ca290a6b98e35e1677f4d0e7964ba50495

  • SHA512

    1c4bc203a7d08055c4a262ca6e47e2b2d405f5e3405cb7846cce9cd96980e2742a4251b185fe90c33eac79c5b1f10777ed4caa0b7044e3c7c1d24a78ea57d4f6

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://dkajsdjiqwdwnfj.info/

http://2831ujedkdajsdj.info/

http://928eijdksasnfss.info/

https://dkajsdjiqwdwnfj.info/

https://2831ujedkdajsdj.info/

https://928eijdksasnfss.info/

rc4.i32
rc4.i32

Extracted

Path

C:\Users\Admin\AppData\LocalLow\machineinfo.txt

Family

raccoon

Ransom Note
[Raccoon Stealer] - v1.5.13-af-hotfix Release Build compiled on Mon Jul 6 14:33:03 2020 Launched at: 2020.09.13 - 11:15:28 GMT Bot_ID: 664A9041-4AC4-46F3-B3DC-87DB4D57890E_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 5 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.51 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: GOHCSFBB - Username: Admin - Windows version: NT 10.0 - Product name: Windows 10 Pro - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 4095 MB (718 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display Adapter ============

Targets

    • Target

      iu2YZH3U.tmp.exe

    • Size

      144KB

    • MD5

      b7dde39920b3c3538087cea04bc6c604

    • SHA1

      7ce4f3e0a60d5385ae6ae0e614cc7fa11a7289e4

    • SHA256

      3b3989c2584a32c31604e474dda215ca290a6b98e35e1677f4d0e7964ba50495

    • SHA512

      1c4bc203a7d08055c4a262ca6e47e2b2d405f5e3405cb7846cce9cd96980e2742a4251b185fe90c33eac79c5b1f10777ed4caa0b7044e3c7c1d24a78ea57d4f6

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • Raccoon log file

      Detects a log file produced by the Raccoon Stealer.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Blacklisted process makes network request

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • JavaScript code in executable

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Tasks