Malicious PDF — malware analysis report

Static analysis result for SHA-256 77969eded5df9505…

MALICIOUS

PDF

34.3 KB Created: 2021-06-23 05:38:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: cc35483506b7ad7d8202143d5c7045da SHA-1: 791bbd1e911db9c0a2d0f38e1c3d705cc769059d SHA-256: 77969eded5df9505544d6c0b78f5bae910a4ba3f49c4506ce8d8fde1f4b5f4ff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents itself as a game hack download, which is a common lure for distributing malware. It contains multiple embedded URLs pointing to potential malware download sites. The presence of an MFA lure suggests an attempt to harvest credentials or session tokens after the initial download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/hawt-sauce-roblox-hack-download-game-hack PDF link annotation
    • https://duoledesign.com/image/data/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/como-conseguir-robux-hack_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-pet-treats-coin-master_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-free-staffs_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-g_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F25 22000 bytes
SHA-256: ee81beb22fb379d654b4481bd127904374e6149d5d335e5de6d9e28fe0628d9a
font_01_sfnt_off00005fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCF 19404 bytes
SHA-256: 49f87097bd2395df757a4ce87f879cd59c0b10564b6bc2620d4e07c64f8cb397