Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ed2ca086d80d14…

MALICIOUS

PDF

34.5 KB Created: 2021-06-27 22:02:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 7bc03e413ffe33ee5600603ec9e3c5b5 SHA-1: 7e7623726cfe2db54d02f7ae047d883f0975d5a4 SHA-256: b6ed2ca086d80d14d1c1dbd4a24a931ce4f1f7ba3482396ff545ebcc55bdd3dc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves further malicious content or downloads. The document's content and embedded URLs suggest a social engineering tactic to exploit user interest in popular games.

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/roblox-jailbreak-free-cash-game-hack In PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/roblox-rs-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-robux-games-online_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-shirt-design-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/how-to-get-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/roblox-free-name-change-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-customize-roblox-skin_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://elearning.man2smd.sch.id/__statics/gudangsoal/files/mosttechs-coin-master-free-spins_GM406889139.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_off00002eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB7 22608 bytes
SHA-256: 2a7e71c1bda102b008c916a722670214e89f74920adfb5febbbae5fad3c45ed2
font_01_sfnt_off00006137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6137 19272 bytes
SHA-256: 0b4e3909be656f203d43c572a3e776c1e626dd687c07a9e3c45a3202115c840c

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