Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afb75d86294ee17…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 19:49:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ebea209e88297649ec8a1e7c343c4673 SHA-1: b861c3003c8320031f15636e461d73f656b7371c SHA-256: 0afb75d86294ee1771c00df1cc2038a32770275c997574261bef32d578b6dcd2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure for game-related cheats and currency, directing users to a malicious redirector. The document body and embedded URLs indicate a phishing attempt disguised as a 'free generator' or 'game hack'. The primary URL, http://netcdn.co/app/431946152/free-roblox-gift-card-org-game-hack, is identified as a malicious redirector, likely serving as a gateway to further malicious content or downloads.

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/free-roblox-gift-card-org-game-hack In PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-robux-and-tix-hack-game_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-android-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-promo-codes-march-21-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cheats-roblox-da-hood_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hacking-is-allowed-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-apk-hack-mod-download_GM406889139.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_off0000317f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317F 22580 bytes
SHA-256: b83b3fe0d7798e1009381bbaf4c524fe49d99542bb6a583993936b92e6196c1d
font_01_sfnt_off00006410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6410 19048 bytes
SHA-256: 708c54afbc37921ca147404ba4d9d1cf0220d574218a9449593e1f7655e454b4