Malicious PDF — malware analysis report

Static analysis result for SHA-256 88de519223ec4159…

MALICIOUS

PDF

35.8 KB Created: 2021-06-26 20:05:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e9fcce636ad84500693edf38d7c0e55a SHA-1: 2720daa15e3ecb847d51b4012eb634423da6341d SHA-256: 88de519223ec41594258068991470a4b3b1f7d40d0927cd71aec25b5f6e5beca
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, disguised as game hack generators. The document body and heuristics indicate a lure to download or access potentially malicious content. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to a malicious site, likely for further exploitation or malware delivery.

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/jetpack-simulator-hack-roblox-v3rmillion-game-hack In PDF document text
    • https://gigbagwinkel.nl/images/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/app-to-hack-roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-use-speed-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/yahoo-games-free-robux_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-and-builder-club-claims_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/robux-com-free_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/cheat-engine-scripts-for-roblox_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/scripts-para-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/robux-free-online_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-hack-roblox-for-robux-and-tix_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/how-to-hack-into-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000322b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322B 22448 bytes
SHA-256: c13f5c4e20a5441a8dd4676b20650cc978d9ff090f53c82c7fcdfe86565ab427
font_01_sfnt_off00006440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6440 19932 bytes
SHA-256: 8540997a120b0ac6b10b4dd9e60a5afd7bacb26290e3072eac7ec3bf2b69753d

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