Malicious PDF — malware analysis report

Static analysis result for SHA-256 a180e7b376c7c645…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 04:55:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 11cd65f63a154e076d202dd9c88567c7 SHA-1: 392f551f2a8d33c6e6f529ea745cb8dcda6b21b6 SHA-256: a180e7b376c7c64569aecbe87f0fd65361e5fc011c4f4ea7c29e497972054076
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lead to a known malicious redirector infrastructure, disguised as free game hacks or generators. The document body and heuristics indicate a lure to trick users into clicking these links, which likely leads to further malicious content or downloads. No scripts were extracted, but the presence of malicious links and the redirector heuristic strongly suggest a phishing or malware distribution attempt.

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.online/app/479516143/how-to-get-minecraft-for-free-on-xbox-one-game-hack In PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/free-tiktok-likes-2021_GM835599320.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://culture.denpasarkota.go.id/assets/CKImages/files/roblox-script-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
font_00_sfnt_off0000543b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x543B 24428 bytes
SHA-256: 868295340950bb341b49bec2653507e685b86655bbecdd3ed6215d65129a036c
font_01_sfnt_off00008b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6C 18472 bytes
SHA-256: 63446f7755945d37ec8b97d22fda434cb08cbf4c61a02f7f94d2af605f03b611

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