Malicious PDF — malware analysis report

Static analysis result for SHA-256 7797c1a3d8e00aae…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 22:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: e08591da10dd52d5e4f003abacfd8695 SHA-1: 74745e1445ac0c9743971fcf3c2e7ff6d57e994f SHA-256: 7797c1a3d8e00aae01a05139213a22f4fea8c934c3d286d3fde63f0b03801f7b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting "game hacks" and generators. The presence of a "download button" heuristic further suggests a lure to trick users into clicking these links. While no scripts were extracted, the embedded URLs and redirector findings strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.online/app/406889139/coin-master-card-link-free-game-hack In PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-builders-club_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsguppicileungsir.sch.id/__statics/gudangsoal/files/get-free-spins-on-coin-master-no-human-verification_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
stream_004_off00005289.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5289 28996 bytes
SHA-256: ca3bbeb527b856e42ce2cf80b5b4fe32a46a6c95b8d59f5755bb3628ee37a413
font_01_sfnt_off00008f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F44 18056 bytes
SHA-256: 2c915f38770e083062bc98f9a3714c418532e4445745be163775e18eb12194f3

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