Malicious PDF — malware analysis report

Static analysis result for SHA-256 b012d6cd8de59c97…

MALICIOUS

PDF

36.0 KB Created: 2021-06-26 18:27:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 600c20f7e273e0888a7d14e9459eace4 SHA-1: d037d64bf532aafccc30d12783a23fdc6e5630ca SHA-256: b012d6cd8de59c978fd6d4110f3dc92811f8c23c2461898b5b1b0faf1347e069
160 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links and a visible download button, all directing users towards a 'free generator / game hack' for Roblox. The primary link, http://netcdn.co/app/431946152/download-synapse-hack-roblox-game-hack, is flagged as malicious. The document's content and structure strongly suggest a social engineering tactic to trick users into downloading potentially harmful software.

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/download-synapse-hack-roblox-game-hack In PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/roblox-free-robux-freedom_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/the-new-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/robux-cheat-buncheats-club_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/roblox-free-item-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/get-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/harked-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/bleu-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/cheat-code-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/how-to-get-free-robux-no-builders-club-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-robux-without-human-verification-for-kids_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/lvl7-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/hacks-para-traspasar-paredes-en-ccualquier-juego-de-roblox_GM431946152.pdfIn 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
font_00_sfnt_off00003340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3340 22684 bytes
SHA-256: 0cd4e850c7e5dc67b892051276e58bdd3ff67b1a45571f3c6a281d4aa2981f67
font_01_sfnt_off0000660d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660D 19516 bytes
SHA-256: 7b4e142683947ecf425d591580054ef00616bcb4c59a41aeef6dc03dde989181

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