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General

  • Target

    106445763c386e992ded6aa68f37f2dd77272d6ea3c6fff34eb70c5ef094aa34

  • Size

    1.2MB

  • Sample

    230408-tyxj9seb35

  • MD5

    5b3b6822964b4151c6200ecd89722a86

  • SHA1

    ce7a11dae532b2ade1c96619bbdc8a8325582049

  • SHA256

    106445763c386e992ded6aa68f37f2dd77272d6ea3c6fff34eb70c5ef094aa34

  • SHA512

    2f0d99af35c326cf46810c7421325deb55ae7ca36a8edc2716a3d32d9e6769e0d374581a98912e22fceeb6973e972463ed8b2fa4d4399043c443fa100dfd17b0

  • SSDEEP

    24576:5yY4YriuQJ5X4SuIcmuBLahxwUzN1YyqoVKucvTNLF9:sY4FuIahGxRMoobNLF

Malware Config

Extracted

Family

redline

Botnet

ronur

C2

193.233.20.20:4134

Attributes
  • auth_value

    f88f86755a528d4b25f6f3628c460965

Targets

    • Target

      106445763c386e992ded6aa68f37f2dd77272d6ea3c6fff34eb70c5ef094aa34

    • Size

      1.2MB

    • MD5

      5b3b6822964b4151c6200ecd89722a86

    • SHA1

      ce7a11dae532b2ade1c96619bbdc8a8325582049

    • SHA256

      106445763c386e992ded6aa68f37f2dd77272d6ea3c6fff34eb70c5ef094aa34

    • SHA512

      2f0d99af35c326cf46810c7421325deb55ae7ca36a8edc2716a3d32d9e6769e0d374581a98912e22fceeb6973e972463ed8b2fa4d4399043c443fa100dfd17b0

    • SSDEEP

      24576:5yY4YriuQJ5X4SuIcmuBLahxwUzN1YyqoVKucvTNLF9:sY4FuIahGxRMoobNLF

    • InfinityLock Ransomware

      Also known as InfinityCrypt. Based on the open-source HiddenTear ransomware.

    • Modifies WinLogon for persistence

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Sets file execution options in registry

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • UPX packed file

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

    • Windows security modification

    • 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

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • 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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks