Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20cdf34cc8b3bb0…

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 22:32:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2a8b9a28f6d4f681d41022ca1fb79be5 SHA-1: c80365685de64c861d4965ecdd61ea2a5f8ecc62 SHA-256: f20cdf34cc8b3bb00ca1a865b0e15f5734832a70ad3f2fb46db47bca1197afb2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to a malicious domain, masquerading as a game hack generator. The document body, though partially obfuscated, contains references to these lures and embedded URLs. The presence of multiple malicious redirector links strongly indicates a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/406889139/coin-master-hack-version-2021-game-hack In PDF document text
    • http://library.stikessuakainsan.ac.id/repository/robux-page_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/what-do-points-do-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hack-master-coin_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-pe_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/pokemon-go-free-7km-eggs-august-2021_GM1094591345.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-generator-without-human-verification_GM431946152.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_004_off0000538d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x538D 25180 bytes
SHA-256: 6d9ac9e68b51c34f7a61a6f18021fd3adae558271eedb6951883cdc0771d78c8
font_01_sfnt_off00008d88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D88 18252 bytes
SHA-256: 85f6cbf22caabfd1980f39a563a7f3700d8edada2923e9ca7ca64ea978e7e6b3

Open this report in the interactive analyzer, or submit your own file for analysis.