Resubmissions

14-03-2021 10:17

210314-fsh5gvfbqx 10

31-10-2020 16:07

201031-jhx64f88en 10

01-10-2020 20:46

201001-nyhbt4p25j 10

01-10-2020 20:45

201001-c3xkyk1ytn 10

01-10-2020 20:43

201001-j5wlprfb6a 10

23-09-2020 09:23

200923-31plnbj8kx 10

07-09-2020 15:39

200907-ttv28yxx3e 10

07-09-2020 15:39

200907-n38qzysfy6 10

07-09-2020 15:38

200907-9llegynkjx 10

07-09-2020 15:31

200907-3xqj79j9gx 10

General

  • Target

    Keygen.exe

  • Size

    849KB

  • Sample

    200923-31plnbj8kx

  • MD5

    dbde61502c5c0e17ebc6919f361c32b9

  • SHA1

    189749cf0b66a9f560b68861f98c22cdbcafc566

  • SHA256

    88cad5f9433e50af09ac9cad9db06e9003e85be739060b88b64186c05c0d636b

  • SHA512

    d9b8537f05844ec2f2549e2049e967a8023bfe432e3a9cf25fc0f7ad720e57a5830be733e1812cc806c5b68cd9586a031e394f67fc7e3f7fe390625fd5dedfbb

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://bit.do/fqhHT

exe.dropper

http://bit.do/fqhHT

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://zxvbcrt.ug/zxcvb.exe

exe.dropper

http://zxvbcrt.ug/zxcvb.exe

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://pdshcjvnv.ug/zxcvb.exe

exe.dropper

http://pdshcjvnv.ug/zxcvb.exe

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://bit.do/fqhJv

exe.dropper

http://bit.do/fqhJv

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://bit.do/fqhJD

exe.dropper

http://bit.do/fqhJD

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://rbcxvnb.ug/zxcvb.exe

exe.dropper

http://rbcxvnb.ug/zxcvb.exe

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: 2020.09.23 - 09:28:24 GMT Bot_ID: BAE8C589-5DA1-4C62-BE46-F8D74908CB8C_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 0 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.51 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: AVGLFESB - Username: Admin - Windows version: NT 6.1 - Product name: Windows 7 Professional - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 2047 MB (450 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

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: 2020.09.23 - 11:20:36 GMT Bot_ID: 18823CA4-5761-4226-8787-CF36135F1C68_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: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: LZUKLIOU - 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 (911 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display Adapter ============

Targets

    • Target

      Keygen.exe

    • Size

      849KB

    • MD5

      dbde61502c5c0e17ebc6919f361c32b9

    • SHA1

      189749cf0b66a9f560b68861f98c22cdbcafc566

    • SHA256

      88cad5f9433e50af09ac9cad9db06e9003e85be739060b88b64186c05c0d636b

    • SHA512

      d9b8537f05844ec2f2549e2049e967a8023bfe432e3a9cf25fc0f7ad720e57a5830be733e1812cc806c5b68cd9586a031e394f67fc7e3f7fe390625fd5dedfbb

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • Raccoon log file

      Detects a log file produced by the Raccoon Stealer.

    • Blacklisted process makes network request

    • Executes dropped EXE

    • Modifies WinLogon to allow AutoLogon

      Enables rebooting of the machine without requiring login credentials.

    • Checks computer location settings

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

    • 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.

    • Accesses cryptocurrency wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Drops desktop.ini file(s)

    • JavaScript code in executable

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks