Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ff0abad7338d8a…

MALICIOUS

PDF

37.6 KB Created: 2021-05-30 17:06:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: da2cbdab9c761f1ea88832e8b4713907 SHA-1: 54da4818e7534922e77bda557586efa12bc19026 SHA-256: c2ff0abad7338d8a87615f212ba6f0af0b2bcc1a10812e6eae9d5cdc8a886c9b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to a known malicious redirector infrastructure, disguised as offers for free in-game currency or items. The document body explicitly mentions 'Free Tiktok Followers' and 'CLICK HERE TO ACCESS TIKTOK GENERATOR', reinforcing the lure. The primary malicious URL identified is https://netcdn.xyz/app/835599320/free-tiktok-followers-no-verification-or-survey-game-hack, which is linked to a game hack generator. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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/free-tiktok-followers-no-verification-or-survey-game-hack In PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/free-tiktok-accounts-with-followers_GM835599320.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.ktedm.gr/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_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
stream_002_off00003916.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3916 24144 bytes
SHA-256: 25be2ba15265cdefaa36bcf15d6e9e0dc86cfb7ef055d4b0b8354c0276d3d5f5
font_01_sfnt_off00007078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7078 18492 bytes
SHA-256: 4d8c0727d58b59d2b63319bab821bc095baa93826ac3da826e0a8bde5531d4a4

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