General

  • Target
    cfg.zip
  • Size 6.7MB
  • Sample230908-mn992sag75
  • SHA256 412b3a62071a324c8aed31df05c70a774f43f4b8b9904977316890dbae3cba84
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      cfg/dealer
    • Size 872KB
    • SHA256 fe4c12ea0fae71c7c47dd41a7aef6358803741c3a4b4c3df40245ae466b034ce
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    • XMRig Miner payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Modifies the dynamic linker configuration file

      Malware can modify the configuration file of the dynamic linker to preload malicous libraries with every executed process.

    • Adds new SSH keys

      Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.

    • Modifies password files for system users/ groups

      Modifies files storing password hashes of existing users/ groups, likely to grant additional privileges.

    • Writes DNS configuration

      Writes data to DNS resolver config file.

    • Adds a user to the system

    • Attempts to change immutable files

      Modifies inode attributes on the filesystem to allow changing of immutable files.

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Modifies systemd

      Adds/ modifies systemd service files. Likely to achieve persistence.

    • Reads CPU attributes

    • Write file to user bin folder

    • Target
      cfg/libextrasshd.so
    • Size 12KB
    • SHA256 7c2dbc1e2177224ae741d001785595e2f5b470181a3525a3cd4a8bc49aedf640
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      cfg/player
    • Size 1.0MB
    • SHA256 c45de89cbafa7e451b7b53fe3eeab0d8c89d82021e1756ba365c852f6b9fe82a
    • MD5 SHA1 SHA512 SSDEEP
    • XMRig Miner payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Modifies the dynamic linker configuration file

      Malware can modify the configuration file of the dynamic linker to preload malicous libraries with every executed process.

    • Executes dropped EXE

    • Loads a kernel module

      Loads a Linux kernel module, potentially to achieve persistence

    • Writes DNS configuration

      Writes data to DNS resolver config file.

    • Checks CPU configuration

      Checks CPU information which indicate if the system is a virtual machine.

    • Checks hardware identifiers (DMI)

      Checks DMI information which indicate if the system is a virtual machine.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Reads CPU attributes

    • Reads hardware information

      Accesses system info like serial numbers, manufacturer names etc.

    • Write file to user bin folder

    • Target
      cfg/rcu_tasked
    • Size 6.3MB
    • SHA256 c91824435626f722a1498985317c2f98df43097051eaa916dd01b949392ef8f1
    • MD5 SHA1 SHA512 SSDEEP
    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Loads a kernel module

      Loads a Linux kernel module, potentially to achieve persistence

    • Checks CPU configuration

      Checks CPU information which indicate if the system is a virtual machine.

    • Checks hardware identifiers (DMI)

      Checks DMI information which indicate if the system is a virtual machine.

    • Reads CPU attributes

    • Reads hardware information

      Accesses system info like serial numbers, manufacturer names etc.

MITRE ATT&CK Enterprise v15

Tasks