General

  • Target

    cookie.txt

  • Size

    140B

  • Sample

    241031-vs48lazmgz

  • MD5

    bbe63dbb29ce1a915f4039c4cdf9d973

  • SHA1

    69eb4309a0978fcd3fe3ef1343ef131e09f3f13b

  • SHA256

    71004035fce4aa5bd442f39f9cfdb9e9a6eaf7c86bd1be10ab85645e6c96c6bb

  • SHA512

    0debbf751eacb15f870bf8ee0142c2274ece6e1d844712fae2c761f6460cfe7a594be15e9fb41e65457c7222d177b5e04564a5188643188567a6870559722f6b

Malware Config

Targets

    • Target

      cookie.txt

    • Size

      140B

    • MD5

      bbe63dbb29ce1a915f4039c4cdf9d973

    • SHA1

      69eb4309a0978fcd3fe3ef1343ef131e09f3f13b

    • SHA256

      71004035fce4aa5bd442f39f9cfdb9e9a6eaf7c86bd1be10ab85645e6c96c6bb

    • SHA512

      0debbf751eacb15f870bf8ee0142c2274ece6e1d844712fae2c761f6460cfe7a594be15e9fb41e65457c7222d177b5e04564a5188643188567a6870559722f6b

    • Downloads MZ/PE file

    • Patched UPX-packed file

      Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Blocklisted process makes network request

    • 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

    • 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

    • Enumerates processes with tasklist

MITRE ATT&CK Enterprise v15

Tasks