Malicious PDF — malware analysis report

Static analysis result for SHA-256 b62ad48140522374…

MALICIOUS

PDF

42.1 KB Created: 2021-05-19 01:40:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 933840d82e8b3b1c953e997a1abdba1a SHA-1: ec7debee3aab6101295a4f196930143fb050943c SHA-256: b62ad4814052237462e06ccb633b080004e659fc5c647bad434ca4b54cff49c6
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors and sites offering free game currency or hacks, designed to lure users into clicking. The document's content and embedded links strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting. No scripts were extracted, but the presence of multiple malicious URLs and the lure indicate a high likelihood of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/835599320/tiktok-free-britney-game-hack In PDF document text
    • http://cintabaca.org/katalog//repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-trolling_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/hacked-client-for-minecraft-bedrock_GM479516143.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
stream_003_off000048c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48C7 25960 bytes
SHA-256: fed31a28b98681315a05b5a705d394d3632c27ce4d43b9dc840f16d76f7e5c7e
font_01_sfnt_off0000837f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837F 17852 bytes
SHA-256: 8794fc8cc6d59f8b7bf2a1beba7f0e75f1a85dee05061da5c2fad573c1b24f90

Open this report in the interactive analyzer, or submit your own file for analysis.