Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4db49e91327cd85…

MALICIOUS

PDF

46.0 KB Created: 2021-05-19 23:03:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 064750e90f53023a79371b8487b690ad SHA-1: 66e58d6bf4b1d4fbced93a23d2811ec510aa5138 SHA-256: f4db49e91327cd850fde64fd1c174268108e35394abbae68c1d75e7fe584689a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The primary redirector URL is https://netcdn.xyz/app/1330123889/pubg-uc-deducted-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector chain designed to lure users to potentially harmful content.

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 https://netcdn.xyz/app/1330123889/pubg-uc-deducted-game-hack In PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/robux-hack_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/coin-master-village-4_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/win-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnegeri1kabtangerang.sch.id/__statics/gudangsoal/files/free-minecraft-realm-codes_GM479516143.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
stream_003_off00004b7e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B7E 29692 bytes
SHA-256: bbc8dc22b7a12ff8760b4cbf92b6b945e55b183729b0869b619548ee83f10987
font_01_sfnt_off000091ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91AB 18344 bytes
SHA-256: 6a86f43d56e3d13f9064a6a86cb1bb4d8a0c785644116cffd10fc70d25df169e

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