Overview

overview

10

Static

static

3

chr.exe

windows7-x64

10

chr.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    chr.exe

  • Size

    66KB

  • Sample

    231120-rwq9csge69

  • MD5

    50b2b692da0c363e301709a28b30afaf

  • SHA1

    098e00413ba405bcc72b71a5869c2d151e93448a

  • SHA256

    d25339ece508876c8900d27721f042391a4cc2769805afa377556a416a192c49

  • SHA512

    d463babcae95c3c200af5ae59aa5f89e2edeb267bb15e843f8a241e17794db1672067cba421ba38cda4e161151d93e5eb2e3bb06cd5ce6bc98d651ebf58f06ce

  • SSDEEP

    1536:UJOjk0yzcRvVSfD8tzsy/jV49Gko0S/aATWJvQ3MJea9yn90+x:UJ70yK4D6P+YxpABJD9F+x

Score
10/10
limeratxwormmicrosoftpersistencephishingrattrojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

162.212.154.8:41589

Mutex

1fGBFdYzxtDnKgy4

Attributes
  • Install_directory

    %AppData%

  • install_file

    OneDrive.exe

  • telegram

    https://api.telegram.org/bot6875063177:AAG1OPJLZ36MPY8oqR1DVb1VHR2wOmnCudg/sendMessage?chat_id=2136313574

aes.plain

Extracted

Family

limerat

Attributes
  • aes_key

    devil

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/rPy10VvM

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    Windows Session Manager.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \Windows\

  • usb_spread

    false

Targets

    • Target

      chr.exe

    • Size

      66KB

    • MD5

      50b2b692da0c363e301709a28b30afaf

    • SHA1

      098e00413ba405bcc72b71a5869c2d151e93448a

    • SHA256

      d25339ece508876c8900d27721f042391a4cc2769805afa377556a416a192c49

    • SHA512

      d463babcae95c3c200af5ae59aa5f89e2edeb267bb15e843f8a241e17794db1672067cba421ba38cda4e161151d93e5eb2e3bb06cd5ce6bc98d651ebf58f06ce

    • SSDEEP

      1536:UJOjk0yzcRvVSfD8tzsy/jV49Gko0S/aATWJvQ3MJea9yn90+x:UJ70yK4D6P+YxpABJD9F+x

    Score
    10/10
    limeratxwormpersistencerattrojanmicrosoftphishing

    • Detect Xworm Payload

    • LimeRAT

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

      ratlimerat

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Detected potential entity reuse from brand microsoft.

      phishingmicrosoft

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks