Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e28a7f928c9faa3…

MALICIOUS

PDF

45.4 KB Created: 2021-05-11 04:03:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1253016375c3add91ab6512c9d0257aa SHA-1: 97eccd3a5ad75b6b045e2f03f6c9087f1e543ed2 SHA-256: 3e28a7f928c9faa35aaa180fa8e8dbed4eed6e9b09266ab3321556a6c6e68f62
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to external websites, primarily advertising game hacks and cheats. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to trick users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of numerous game-related lures suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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 https://netcdn.xyz/app/479516143/aristois-minecraft-hack-game-hack PDF link annotation
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/free-robux-earn_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://elearning.manposo.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004e0e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E0E 24696 bytes
SHA-256: 1b1ecfbe3be891d3fc8c3b32f031885efd06387056e023917cd43aabb5201473
font_01_sfnt_off0000861e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x861E 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00009009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9009 17880 bytes
SHA-256: 25c00ec861e6e57994eb124e09534617d58d2eef928fd95c21cebeceebc8ffd9

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