Malicious PDF — malware analysis report

Static analysis result for SHA-256 a012e1fe17f55798…

MALICIOUS

PDF

50.1 KB Created: 2021-05-12 17:42:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d4a507c115842c843f632ce2d53ec184 SHA-1: 8e5fc4b2cbe296dd0a7020b1de9b41225a3c3462 SHA-256: a012e1fe17f557988753ac19cf52dacf4ec01b361b4f1a8ac9e8ea1f785e8e3b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded links that point to known malicious redirectors and potentially malicious content. The heuristic firings indicate that the document is designed as a lure, likely for game-related cheats or free items, to trick users into visiting these harmful URLs. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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/431946152/free-roblox-templates-game-hack In PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://reggieslockandkey.com/images/jailbreak-script_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/roblox-free-pets_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/tiradas-coin-master_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_off00004b64.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B64 39392 bytes
SHA-256: b34f72c1ddc6fb98c15396fd360adad4a1f564bf386aa7fd7152fdb054be0edb
font_01_sfnt_off0000a09e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA09E 18716 bytes
SHA-256: bf2cc55c1544d3a32bf4b8d9dd067a1dc9fa2bd8ba88e470198e88e73129adbc