Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c0d4ec80a2a2049…

MALICIOUS

PDF

34.8 KB Created: 2021-06-19 10:27:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8be82ad112e1b88e47c4c06612e3d3b7 SHA-1: 49e410a1d0509bf2d6d9b3984994a368816f108e SHA-256: 3c0d4ec80a2a20496c77002da8708246b9a9123cc6aa54b7a2552065d1778ec4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators. The document body and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow, likely intended to deliver a second-stage payload.

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/robux-today-game-hack In PDF document text
    • http://baxtton.com/sites/default/files/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/robux-only_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/hack-robux-thegatogaming_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/how-do-you-speed-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://baxtton.com/sites/default/files/files/free-robux-hack-generator_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_off00003211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3211 22312 bytes
SHA-256: 285b6205e8e6ad2e37d70fb2936ad19edadc0613e38d86152a97ce5dc68ec439
font_01_sfnt_off0000635b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635B 18904 bytes
SHA-256: 2027c49f68bbeff3a315e031b7bcb34a95dd5d98227dd3ac67cfce58e7160adc

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