Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f556093978f467d…

MALICIOUS

PDF

35.9 KB Created: 2021-07-01 21:29:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d9473562e79e5a1a855cd96e881d5e57 SHA-1: 0470908246cb384694762207d3123ccecfdc797b SHA-256: 5f556093978f467da46158c123dce02040c7033efacf9f07f74dfbe63056e916
160 Risk Score

Malware Insights

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

The PDF document contains links that redirect to malicious infrastructure, specifically promoting game hacks and cheats for Roblox. The primary link, http://netcdn.co/app/431946152/roblox-jailbreak-hack-download-2021-game-hack, is identified as a malicious redirector. This suggests the document is designed to trick users into downloading potentially harmful software disguised as game cheats.

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-jailbreak-hack-download-2021-game-hack In PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/cheat-engine-63-roblox-tycoon-hacks_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/eggs-free-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/cheat-roblox-obby_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-granny-in-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-robux-on-ios-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/dgeler-rocach-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/cheat-engine-2021-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-free-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/near-tiktok-free-fire_GM835599320.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/bit-ly-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-hack-roblox-on-chat-bar_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-robber-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_002_off0000327e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327E 22504 bytes
SHA-256: 394c536bdfeb7a2109c3ef3cb1077432ec616a8a0a9029f1735654ef152b7844
font_01_sfnt_off000064c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C6 19852 bytes
SHA-256: f1ae5961e62af31854382548a84439cd0d83a513548d2de6e900d0e510b66658

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