Malicious PDF — malware analysis report

Static analysis result for SHA-256 02df3a33189df0b7…

MALICIOUS

PDF

46.5 KB Created: 2021-06-04 03:16:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 65a3370d71f39929cd8d5638ebc1927e SHA-1: b918c8c8b24d1139693c297d0b2414d6a5702731 SHA-256: 02df3a33189df0b74dc7adef1f1f837ec12f161fc7234d36a10c1663e3767622
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to known malicious infrastructure. The document body and embedded links suggest a lure for game-related cheats or hacks, aiming to trick users into visiting potentially harmful sites. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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-gold-cards-hack-game-hack In PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-avatar_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-followers-on-tiktok-without-verification_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-coins-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-links-free-spins_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000520e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x520E 25556 bytes
SHA-256: a970266db4194f4e4978607f62d8235ae109f7c95964d08be7fa0415d113338d
font_01_sfnt_off00008a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0D 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off000093bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93BF 17964 bytes
SHA-256: adb4edbf0c57abdeeb225f0bd422abdfe2e9b1ff4eb8b752c2c204cd3e2141b0

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