Malicious PDF — malware analysis report

Static analysis result for SHA-256 79f11d7b502c4219…

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 21:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: efdf0fb4b63df880d20decb9bb0cf061 SHA-1: b67b6f3733608441e148adf6c001eccefe4af796 SHA-256: 79f11d7b502c421957855e8475c6fef63309d608409ef33dedf43d86375b44a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that lead to a known malicious redirector infrastructure, specifically promoting free game hacks and generators. The document body, though heavily obfuscated, contains references to 'Minecraft' and 'Roblox' which align with the lure of free downloads. The presence of multiple links to similar content suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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/479516143/minecraft-116-free-download-game-hack In PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/blogger-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://man2tasikmalaya.sch.id/__statics/gudangsoal/files/static-moonactive-net-link_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF2 24492 bytes
SHA-256: 7f17823eb6fe03982f73504f2bd658d2eab30868f736fab3b362bebb2ba485fa
font_01_sfnt_off00008721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8721 3188 bytes
SHA-256: 827d70fca1b44ff9542e8f51f3fc4aff65c82291cf57be0afe90bb4ef5a5d220
font_02_sfnt_off00009212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9212 18564 bytes
SHA-256: b69ca6c2709bd8bd2136798b75f75eb09d00c05f8a28fb64bf99cec8ec23d483

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