Malicious PDF — malware analysis report

Static analysis result for SHA-256 1adbbfee78df42bf…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 12:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b9e3975f660b04e736cf99130b1d9a10 SHA-1: 986853acd7d02910e19b796733fef9e62238d1dc SHA-256: 1adbbfee78df42bf2cba12d3a1cddbbb2dfdd6394cf79153887adf98dc50103c
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically targeting users interested in game hacks and free currency like Robux. The document body, though partially corrupted, contains keywords related to these lures. The presence of embedded links and the nature of the lures strongly suggest an attempt to redirect users to malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/431946152/roblox-fun-com-free-robux-game-hack In PDF document text
    • https://ceranique.nl/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • https://ceranique.nl/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-tricks_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/how-to-get-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-free-spin-and-coin_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
stream_003_off00004933.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4933 26656 bytes
SHA-256: e42ff0b9488c46b3fa27e591d6c6a41127d6f415d336c7dba2d464f60f650617
font_01_sfnt_off0000869a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869A 18348 bytes
SHA-256: 9560f0e6f9a4e6be006083e3696e79311a38bb173f302534750988b281bae61f

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