Malicious PDF — malware analysis report

Static analysis result for SHA-256 5beeeb4aaaa20adc…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 03:03:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b85d717fe5c349709279ec30b43335dd SHA-1: 11ae22b1b0cba93e03804e57027ebb4d517d3af5 SHA-256: 5beeeb4aaaa20adc6b3844ea5aa95e5aaa94ee1e79872e8801a7eb5bceb5bdd0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with 'free generator' or 'game hack' themes, indicating a phishing or scam attempt. The embedded URLs suggest the document is part of a campaign to drive traffic to potentially malicious sites or download further malware. No scripts were extracted from this sample.

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.tw/app/431946152/how-to-earn-robux-for-free-2021-game-hack In PDF document text
    • https://htdvn.com/public/upload/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-do-you-hack-a-server-on-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-comcom_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/vdeos-de-los-mejores-hackers-que-hackean-cuentas-en-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-fan_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-game-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3200 22524 bytes
SHA-256: fe1f90dd86e7a3bc4205ed5f906b76996e3a3dd0362406546dbe317773f5cbd1
font_01_sfnt_off0000642f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642F 19284 bytes
SHA-256: b399ae733d7917559aeb38653f56690fc8d0842846df9d5376906f0eed96920f

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