Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdd1468029e25497…

MALICIOUS

PDF

57.4 KB Created: 2021-06-04 05:25:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c46b0059364ca621e0779f1d9c7338b5 SHA-1: 4a96e922d6f0177d8feabed5f8a8a11b7b29c73a SHA-256: fdd1468029e25497f13d684e3098e7801b19926869dc325c9b69e11c1732c929
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary malicious URL identified is https://netcdn.online/app/406889139/coin-master-free-spins-no-verification-game-hack. The document body, though heavily obfuscated, contains references to this URL and similar lures, indicating a social engineering attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9684

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-free-spins-no-verification-game-hack In PDF document text
    • https://elibrary.sttar.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/hack-coin-master-apk-ios_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/pokemon-go-free-7km-eggs-august-2021_GM1094591345.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://elibrary.sttar.ac.id/repository/coin-master-free-chip_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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51CF 27604 bytes
SHA-256: a4124f1c0faa03b9d5cddbc814279eca4ea10be0ca822237c9355a4da0c5fe4c
font_01_sfnt_off0000920e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x920E 3088 bytes
SHA-256: 21947db80f63681192ff4d23c9293372afcdd8455d0079c5ca62ec2c2320d79e
font_02_sfnt_off00009cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD9 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000afff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFFF 18020 bytes
SHA-256: 3fc8e712472bedc95e33b1ebb168eee1fa4dc7350c3476e9ae694c4447b57514
font_04_sfnt_off0000d13b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13B 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

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