Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc3b9cdb3a3f4cd7…

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 09:59:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7d8df95539d97ed7bec1547107831572 SHA-1: 05e8631f37742b08a015b6cc6ef61dd72c6d1247 SHA-256: bc3b9cdb3a3f4cd7571c7254c7a6912de1ac1d789305ca66bd9749718cd02318
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The primary lure is a link to 'hacks-for-roblox-ro-ghoul-game-hack' which resolves to malicious infrastructure. The document's structure and embedded links suggest an attempt to trick users into downloading further malicious content or visiting compromised sites.

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/hacks-for-roblox-ro-ghoul-game-hack In PDF document text
    • https://planetzoe.hr/files/free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/hack-dinero-en-roblox_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/wall-hack-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/roblox-free-level-6-exploit_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-robux-hack-on-phone_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-roebucks-com_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/cruise-ship-tycoon-hack-roblox_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/counter-blox-roblox-offensive-wall-hack_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/is-it-possible-to-get-free-robux_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_off00002f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F13 21868 bytes
SHA-256: 16462fb3568dee62fca01ccdaed4f9a08f8fec6930bb6f7b90d6f5b6a9f0ca3e
font_01_sfnt_off00005f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 19124 bytes
SHA-256: d41ea9dc4e84d77712026da38623af5c0d6088bb05282815a79b338f160e5710

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