Resubmissions

02-09-2021 19:12

210902-xwla1aeefq 10

02-09-2021 19:09

210902-xtsbjabea9 8

General

  • Target

    Anime-Fighters-Infin_734316524.zip

  • Size

    9.7MB

  • Sample

    210902-xwla1aeefq

  • MD5

    2206849ca275c100c18d6feade905ad3

  • SHA1

    61d1a76826305738845c286d5c7078337d8b2d35

  • SHA256

    c91c6c4c1162115c8d7f82f2d9f4098ee61fbe9051d3350b0a2f97fa2ce3e6f2

  • SHA512

    69784817974e5fadf7cf19455fdb164ce90aeb2a1d86164ecaf226316b118ca187d01188cf4d06f7736358198a6e12c247bf8a5e5b0e60693d9295996a33578c

Malware Config

Targets

    • Target

      Anime-Fighters-Infin_734316524.exe

    • Size

      3.9MB

    • MD5

      bd2b73492acf20dec004360b1605032d

    • SHA1

      60ddf3c107d94bbeb102a2d7ede945eb5edd2b35

    • SHA256

      12b6272825140a15eabec58f97b49aed3ce5db7816a0b3c2674f6ae8746367ca

    • SHA512

      dae236259e32a9e4b789f020dbd8082b376e3c2b56fd94523a44cf4b5a557f3661aeefc24b5605218ba0479ee1b9a8cb7b5c1df6c103673a99f13bc4210c90da

    • Lu0bot

      Lu0bot is a lightweight infostealer written in NodeJS.

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • suricata: ET MALWARE lu0bot Loader HTTP Request

      suricata: ET MALWARE lu0bot Loader HTTP Request

    • suricata: ET MALWARE lu0bot Loader HTTP Response

      suricata: ET MALWARE lu0bot Loader HTTP Response

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

    • 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.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

5
T1112

File Permissions Modification

1
T1222

Install Root Certificate

1
T1130

Hidden Files and Directories

1
T1158

Discovery

Query Registry

5
T1012

System Information Discovery

7
T1082

Peripheral Device Discovery

2
T1120

Process Discovery

1
T1057

Command and Control

Web Service

1
T1102

Tasks