Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c779345f3071e7b…

MALICIOUS

PDF

33.6 KB Created: 2021-06-30 16:54:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 96b0c2cd400559b3817b4191f7362841 SHA-1: a99c4c3e1b4ad3828689fd7c1809ebef20103362 SHA-256: 0c779345f3071e7ba3be72773cb9a75b3abbea6c91e54bbe20019a016cd33000
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to malicious redirectors and lures users with promises of free game currency or hacks. The primary link, http://netcdn.co/app/431946152/roblox-plates-of-fate-hacks-game-hack, is identified as a malicious redirector. The document body and embedded links suggest a social engineering tactic to drive traffic to potentially malicious sites.

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-plates-of-fate-hacks-game-hack In PDF document text
    • http://mbbs.hr/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-live_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-download_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-steves-one-piece-hack_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-level-3_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-redeem-code-genartor_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/to-cash-free-robux_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-gewicht-heben-simulator-3-hack_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-15-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-gain-robux-for-free_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_off00002e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E28 21880 bytes
SHA-256: d2e12891dc85674a8d4156c28bf2bc9698b4863568d1f57e25e519427501c654
font_01_sfnt_off00005e44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E44 19076 bytes
SHA-256: 38b4e03bd6322cb9d3b9693e6e471024b8ab0889625556c05f44a8524367880a

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