Malicious PDF — malware analysis report

Static analysis result for SHA-256 af25d78521c4e060…

MALICIOUS

PDF

34.6 KB Created: 2021-07-02 07:13:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 720c9bb911b5b9ff4d815be1a2ba6046 SHA-1: 748b3b9eb7face1bd92fd5c8e95d3836ddad8373 SHA-256: af25d78521c4e0606384e179f16faf80c78ea16f96159608e7e646df5210e19f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and currency to entice users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts numerous other links to similar scam pages. The document's content and embedded links strongly suggest a phishing or scam campaign aimed at tricking users into visiting potentially harmful websites.

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/minecraft-aimbot-game-hack In PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/free-tiktok-fans-no-verification-2021_GM835599320.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/krnl-download_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mapuicijantung.sch.id/__statics/gudangsoal/files/master-coin-free-spin_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_off000030bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BD 22964 bytes
SHA-256: 0ef6d2744135331efd798b38f89eef57abc6eb04cf9e67ff505fc1c40bf71416
font_01_sfnt_off00006421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6421 18416 bytes
SHA-256: 7ade71fc37f91aca8989dd0df7b95c3e608aa25abc776de8806115a1be660a99

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