Malicious PDF — malware analysis report

Static analysis result for SHA-256 6560572fb2d98981…

MALICIOUS

PDF

35.8 KB Created: 2021-06-29 08:43:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: f1f1fb6e1ccc450261f901231d7b59f8 SHA-1: 911c4e73ce51b66fcf1fbc1835d9edd519ba8898 SHA-256: 6560572fb2d989817587c50df8a20bf8e1a27748ebde597ebb66d3349bd4619b
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free in-game currency. The primary URL, http://netcdn.co/app/431946152/how-to-get-god-mode-on-roblox-with-cheat-engine-game-hack, is identified as a malicious redirector. The document body and embedded URLs suggest a phishing or scam campaign aimed at users seeking advantages in games like Roblox and Minecraft. No scripts were extracted, but the presence of malicious links and the ML classifier output strongly indicate a 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/how-to-get-god-mode-on-roblox-with-cheat-engine-game-hack In PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-free-lvl-7-script-executor-2021-august-2021_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-robort-free_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-free-printables-part_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-please_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/ban-hack-roblox-trackid-sp006_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/are-you-cheating-on-your-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/the-easiest-way-to-get-free-robuxgrayphiny_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/roblox-free-bot-followers_GM431946152.pdfIn PDF document text
    • https://www.iseas.com/uploaded_files/userfiles/files/hacks-de-velocidad-para-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DA 22592 bytes
SHA-256: a8caa6c087a1e2a7a8235a7f6ecddec82c0c5d2e3ffecccc72f84de0bee227a4
font_01_sfnt_off0000653d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x653D 19608 bytes
SHA-256: b48ec18b775724850b218a4a60175e9363c2894161b995e2794304f631e9dd87