Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a64cc0a027a4495…

MALICIOUS

PDF

34.1 KB Created: 2021-06-28 06:20:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8822362e3240804d08e8e838ef11cd3f SHA-1: d14dbd437337828d3ff3db5c3393bc29f894585e SHA-256: 8a64cc0a027a44959ceeac99432c58de60c58544545134fd0482c02b7e6ccf12
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs and a heuristic firing for an external URI, all pointing towards lures for game hacks and in-game currency. The presence of a 'download button' heuristic further supports the malicious intent of tricking users into downloading an application. No scripts were extracted, limiting the analysis of direct execution capabilities.

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 http://netcdn.co/app/431946152/adopt-me-roblox-hacked-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/free-cool-girl-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/generator-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-do-i-get-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-hacks-for-good_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-promocode-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-robux-hack-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-gamepass-script_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-live-2021_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
font_00_sfnt_off00002f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4E 21764 bytes
SHA-256: b0a8cc875bbd6bdead89572a911e8e2b79547c6b184c5e7c67c9425a075c804c
font_01_sfnt_off00005f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3E 19308 bytes
SHA-256: 62e10c8b73afafbcf6b58eb2c273048280df64d1a76aab83d8d2a45844f92558

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