Malicious PDF — malware analysis report

Static analysis result for SHA-256 77799ea174b9a63d…

MALICIOUS

PDF

35.4 KB Created: 2021-06-22 08:23:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 350a7ea1646c90fc371c1b88a75f1b35 SHA-1: d7a4476112d31563f00b05af42ebaf4f2ed177fb SHA-256: 77799ea174b9a63d0cd39c4780953ce6c8f040eb17565910998cf0eecce9784b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links that redirect to known malicious infrastructure, masquerading as game hacks and generators. The document body and embedded links promote free game mods and currency, aiming to trick users into visiting malicious sites. No scripts were extracted, but the PDF's structure and embedded links are indicative of a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/479516143/free-mods-for-minecraft-pe-game-hack In PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/pubg-uc-yollama_GM1330123889.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/krnl-download_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/coin-game_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/tiktok-views-free_GM835599320.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man1kukar.site/__statics/gudangsoal/files/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000357d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x357D 22544 bytes
SHA-256: 20b1821440f3ab537083bc04589d62bac9f4783252dccca07dae84b6b136a8fd
font_01_sfnt_off00006788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6788 18324 bytes
SHA-256: 6654eaae5534462051d4d15c9b2a2db406e5011fb4f6a93ce1582a2079ce45bc

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