General

  • Target

    New Compressed (zipped) Folder.zip

  • Size

    3.5MB

  • Sample

    241213-ypeejsxqhx

  • MD5

    e874e56bcf67c52b8e45412758e7a4a7

  • SHA1

    1084878d6ade851ae1b39fc11433231627e9883b

  • SHA256

    6bcffc9eb97865137a82de34a55aa8e1a0427d520136105dd91cbd6a3701cc0c

  • SHA512

    7dad0a30aa5aa225f7c30a675c4fd810bec21d1133dc6ffff85e7af6d8f73d822497c1f4db90cb926d4e9d46dffda91be2d42da2ef774b487f11ad0cd038af92

  • SSDEEP

    98304:yhFITZShhcRokZ+ATMWnqajsb4plNNwudqZD1YG:yhFIAhh4ZSWn6beNNwugZp3

Malware Config

Targets

    • Target

      Bootstrapper.exe

    • Size

      800KB

    • MD5

      02c70d9d6696950c198db93b7f6a835e

    • SHA1

      30231a467a49cc37768eea0f55f4bea1cbfb48e2

    • SHA256

      8f2e28588f2303bd8d7a9b0c3ff6a9cb16fa93f8ddc9c5e0666a8c12d6880ee3

    • SHA512

      431d9b9918553bff4f4a5bc2a5e7b7015f8ad0e2d390bb4d5264d08983372424156524ef5587b24b67d1226856fc630aaca08edc8113097e0094501b4f08efeb

    • SSDEEP

      12288:qhd8cjaLXVh84wEFkW1mocaBj6WtiRPpptHxQ0z:2ycjar84w5W4ocaBj6y2tHDz

    Score
    7/10
    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Blocklisted process makes network request

    • 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

    • Target

      RobloxPlayerInstaller (1).exe

    • Size

      7.2MB

    • MD5

      a1c0810b143c7d1197657b43f600ba6b

    • SHA1

      b4aa66f5cdd4efc83d0478022d4454084d4bab1d

    • SHA256

      30f233f41ec825806609fb60d87c8cb92a512b10f7e91cdbb4bf32cee18217ae

    • SHA512

      8f45702da43526c04b957f571450a2b53f122b840fa6118a446972bc824c8ee7acd6e197177b54236ce7f428fb73a7cbe4ed18d643c625c9f156463d51ee038a

    • SSDEEP

      196608:icFyGfy3bsb1qGJyGs0kt3w4aIDwPWPdXS3O8Ma:icyGEGs0kt3w4RXAKa

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • 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

    • 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

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks