Malicious PDF — malware analysis report

Static analysis result for SHA-256 00efd328c5c67dc6…

MALICIOUS

PDF

44.9 KB Created: 2021-06-08 19:16:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 730efb9b9a067284780460c85344e8b4 SHA-1: fd30bb80d4d90ff841a3eea5de359b72a3ba5ac0 SHA-256: 00efd328c5c67dc69a4854c93572ea075eed196c5c9ce0573302fbe08708be1b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary link directs to a site promoting a 'game hack' which is likely a lure to download further malware or engage in fraudulent activity. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/how-to-fly-hack-in-roblox-lumber-tycoon-game-hack In PDF document text
    • https://reggieslockandkey.com/images/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-script_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • https://reggieslockandkey.com/images/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/roblox-free-skin_GM431946152.pdfIn PDF document text
    • https://reggieslockandkey.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://reggieslockandkey.com/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://reggieslockandkey.com/images/pokemon-go-free-gyarados_GM1094591345.pdfIn PDF document text
    • http://reggieslockandkey.com/images/free-robux-for-kids_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_004_off00004f83.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F83 25788 bytes
SHA-256: 25de1896b1668f505a6e7fd1a4a65be58403a2c5a33e45bb3b54ccab0de0b305
font_01_sfnt_off00008ab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AB0 19088 bytes
SHA-256: b8ce351c6df7bcf0958630d7a53455ef697ead513c921ebb4f9c643b34352d95

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