General

  • Target

    NanoCore 1.2.2.0.7z

  • Size

    162KB

  • Sample

    240531-ng33tsff6s

  • MD5

    63ba13bf2ddd20be9a1415b93339cc39

  • SHA1

    ad759db50ef788cb6d8ff9fa7bae45908f7e70c8

  • SHA256

    59c74f45889b604c8e02c25a4823d8e314b1b4046e90059e86cf37066dd812cd

  • SHA512

    8352b10f54698d9eec1d8ec04265c709a83f94411fb8fb5a5e9510b84113bc846b0922a55dac972a95020357c4bdd0b26ecb462a4a6c182b14b2e1beec13e408

  • SSDEEP

    3072:e9LyHmlMyebiCHNg4l83alfPfkzw92NaxcB0R2+Zn3WTtY+zxjL9uC3qwZ0y92wH:Rjoq62n9ddKM2vkm0aWyRv3G9qvZJT3T

Malware Config

Targets

    • Target

      NanoCore 1.2.2.0.7z

    • Size

      162KB

    • MD5

      63ba13bf2ddd20be9a1415b93339cc39

    • SHA1

      ad759db50ef788cb6d8ff9fa7bae45908f7e70c8

    • SHA256

      59c74f45889b604c8e02c25a4823d8e314b1b4046e90059e86cf37066dd812cd

    • SHA512

      8352b10f54698d9eec1d8ec04265c709a83f94411fb8fb5a5e9510b84113bc846b0922a55dac972a95020357c4bdd0b26ecb462a4a6c182b14b2e1beec13e408

    • SSDEEP

      3072:e9LyHmlMyebiCHNg4l83alfPfkzw92NaxcB0R2+Zn3WTtY+zxjL9uC3qwZ0y92wH:Rjoq62n9ddKM2vkm0aWyRv3G9qvZJT3T

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • Nirsoft

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • 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.

    • Checks whether UAC is enabled

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scripting

1
T1064

Scheduled Task/Job

1
T1053

Command and Scripting Interpreter

1
T1059

Persistence

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

3
T1112

Scripting

1
T1064

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Collection

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks