Malicious PDF — malware analysis report

Static analysis result for SHA-256 17057949bf6d1178…

MALICIOUS

PDF

34.7 KB Created: 2021-06-18 11:14:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: df56823cda8ca3cb485480f5b5ce9a99 SHA-1: 19914e661cbdaad6bac4ccaabe868fbf452fe351 SHA-256: 17057949bf6d1178722b17fb99ad3ee633498ebbe6a4090c9cb0f4fd84b38a05
160 Risk Score

Malware Insights

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

This PDF document employs a lure of game hacks and free in-game currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or malware downloads. The ML classifier strongly indicated maliciousness, and the presence of multiple lures reinforces the malicious intent.

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-auto-farm-bee-swarm-simulator-hack-game-hack In PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-rape_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/hack-download_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/uirbx-club-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/roblox-fast-card-codes-free_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/real-robux_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/a-hack-for-roblox-tower-defence-roblox_GM431946152.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://www.thecoffeebaron.co.za/images/free-robux-codes-2021_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
font_00_sfnt_off00003031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3031 22316 bytes
SHA-256: 510d0dd56a03659151af5988b32ed12358875a5b4646bc0870e9116d817c1581
font_01_sfnt_off000061cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CB 19420 bytes
SHA-256: 660ca85a1c880b6efea7e2f37a34827d37fbf57bbd5cca8b35b1ab762285fa54

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