Overview

overview

10

Static

static

f33933b1f7...14.exe

windows7_x64

10

f33933b1f7...14.exe

windows10-2004_x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    f33933b1f768b8c6fff96fdd46b66d758fb28fc469f8b31e4a3e10f95730fe14

  • Size

    116KB

  • Sample

    220220-apgmxafgcr

  • MD5

    9defe4fa3561d26e7d56ea9faab90602

  • SHA1

    7ed8e87f01b5c4e4dd38e15d96d145e9fe95f91c

  • SHA256

    f33933b1f768b8c6fff96fdd46b66d758fb28fc469f8b31e4a3e10f95730fe14

  • SHA512

    e6ff5c4db2d7d134bd51eabf9550f10aee1f578d44485cca03046ceb926fe348acba56df419f06b2cfeab4faacab097442e98cac985593f5ab865e7753ee9dda

Score
10/10
ryukdiscoveryransomware

Malware Config

Extracted

Path

C:\users\Public\RyukReadMe.html

Family

ryuk

Ransom Note
contact balance of shadow universe Ryuk $password = 'Dmf2iVkD4d'; $torlink = 'http://oc6mkf4efqrjp2ue6qp6vmz4ofyjmlo6dtqiklqb2q546bnqeu66tbyd.onion'; function info(){alert("INSTRUCTION:\r\n1. Download tor browser.\r\n2. Open link through tor browser: " + $torlink + "\r\n3. Fill the form, your password: "+ $password +"\r\nWe will contact you shortly.\r\nAlways send files for test decryption.");};
URLs

http://oc6mkf4efqrjp2ue6qp6vmz4ofyjmlo6dtqiklqb2q546bnqeu66tbyd.onion

Targets

    • Target

      f33933b1f768b8c6fff96fdd46b66d758fb28fc469f8b31e4a3e10f95730fe14

    • Size

      116KB

    • MD5

      9defe4fa3561d26e7d56ea9faab90602

    • SHA1

      7ed8e87f01b5c4e4dd38e15d96d145e9fe95f91c

    • SHA256

      f33933b1f768b8c6fff96fdd46b66d758fb28fc469f8b31e4a3e10f95730fe14

    • SHA512

      e6ff5c4db2d7d134bd51eabf9550f10aee1f578d44485cca03046ceb926fe348acba56df419f06b2cfeab4faacab097442e98cac985593f5ab865e7753ee9dda

    Score
    10/10
    ryukdiscoveryransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Modifies file permissions

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks