Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc1a72547101bf55…

MALICIOUS

PDF

35.8 KB Created: 2021-05-23 12:10:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f3b098eb7fd3d5dc0b58060a01d6b0f5 SHA-1: 95b5fbb1eb54839eb043957ae2d616ead1f1544d SHA-256: bc1a72547101bf55dd84223606d68b6e5d17ecff6f28a00bc15944aed4b6ac0b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple embedded URLs that redirect to known malicious infrastructure, specifically a site offering game-related generators. The document body includes phrases like 'Free Minecraft Skin Packs' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', indicating a lure to trick users into clicking the malicious links. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/479516143/free-minecraft-skin-packs-game-hack In PDF document text
    • https://dinpertan.grobogan.go.id/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://dinpertan.grobogan.go.id/images/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://dinpertan.grobogan.go.id/images/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • https://dinpertan.grobogan.go.id/images/pubg-mobile-uc-qatar_GM1330123889.pdfIn PDF document text
    • https://dinpertan.grobogan.go.id/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://discord.ggIn 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_002_off000033bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33BC 24936 bytes
SHA-256: d48f85d529fd28b20fc6ce895798d9d28be6e9995bc349a0b6d1b6def379508a
font_01_sfnt_off00006c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C19 17892 bytes
SHA-256: 3d88f62d7f103248f07683485ae665a8ae7a7912bf87b287aa517b4ed8ad8cc7

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