Overview

overview

10

Static

static

ab7b41c231...d0.exe

windows7_x64

10

ab7b41c231...d0.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0

  • Size

    845KB

  • Sample

    220520-2shsxsahgq

  • MD5

    c29b3a45fa82325fc62f03f2da1e2975

  • SHA1

    2655cc45ccabc43db6791cd57080b1be3a84a775

  • SHA256

    ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0

  • SHA512

    5baaaef6460890762441cbad946031809f2754b8fea363ed0a90267cb0a026ffdb9d686d51cd96010c6d7d82b8f9e2755eff9903c61cb0bc79d04fdb90bbf6ae

Score
10/10
limeratevasionrat

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    NYANCAT

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/RScXPXsx

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Server.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \Mail-Server\

  • usb_spread

    false

Targets

    • Target

      ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0

    • Size

      845KB

    • MD5

      c29b3a45fa82325fc62f03f2da1e2975

    • SHA1

      2655cc45ccabc43db6791cd57080b1be3a84a775

    • SHA256

      ab7b41c231ff2cfd4f9befca2ce8af7478848a956efbbbd534283e549580acd0

    • SHA512

      5baaaef6460890762441cbad946031809f2754b8fea363ed0a90267cb0a026ffdb9d686d51cd96010c6d7d82b8f9e2755eff9903c61cb0bc79d04fdb90bbf6ae

    Score
    10/10
    limeratevasionrat

    • LimeRAT

      Simple yet powerful RAT for Windows machines written in .NET.

      ratlimerat

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Legitimate hosting services abused for malware hosting/C2

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

7
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks