Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fc949cca57e0884…

MALICIOUS

PDF

33.0 KB Created: 2021-06-28 04:15:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3e876660e3938fce10ac338930b60c1f SHA-1: 81a70ea5c0ba3654e3b80afe00a6b1bd320099de SHA-256: 7fc949cca57e088496deba6cf44569128f4cbaaadc32730894e03f5800c1520a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, masquerading as a game hack generator. The document body explicitly mentions "Roblox Cheats For Tix 2021" and "ROBUX GENERATOR", indicating a lure for potentially valuable in-game currency. The presence of multiple redirector links and a high ML classifier score strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-cheats-for-tix-2021-game-hack In PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-imagine_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-admin-on-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/pokemon-go-free-accounts-list_GM1094591345.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-tiktok-followers-2021_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-that-you-can-play-for-free_GM479516143.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_off0000299d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x299D 22324 bytes
SHA-256: bb9c75a412487fe084889a664d820ff0e8d4823c803f9ed9d936514c368348dc
font_01_sfnt_off00005b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B18 19444 bytes
SHA-256: 872d977350fdb8fb385ce6ab6f6fb8bdd5b3a20a0eff4905751edd586d038aec