Malicious PDF — malware analysis report

Static analysis result for SHA-256 4baaaf4cd8c2f252…

MALICIOUS

PDF

35.8 KB Created: 2021-06-28 06:52:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d27e9a997703f2587b742cadd92f7966 SHA-1: f2911d96d7fc77d47373e2ae58128cd48ec566af SHA-256: 4baaaf4cd8c2f252a22e980ab1d67e0a7d5bbd52568616e947a765b2a4864855
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links and a primary URL pointing to game hacks and cheats, strongly suggesting a lure for users to download malicious content. The heuristic findings confirm the presence of a link farm and a high ML classification score, indicating malicious intent. The document body, though partially corrupted, contains keywords related to game hacks and the primary download URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-no-scope-sniping-hack-v3rmillion-game-hack
    • https://perpustakaan.iahntp.ac.id/repository/free-falling-roblox-codes_GM431946152.pdf
    • https://perpustakaan.iahntp.ac.id/repository/how-to-hack-infinity-heroes-roblox_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/working-coin-master-hack_GM406889139.pdf
    • https://perpustakaan.iahntp.ac.id/repository/easy-hacks-online-robux-generator_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-daily-free-coins-link_GM406889139.pdf
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-hack-app-android_GM406889139.pdf
    • https://perpustakaan.iahntp.ac.id/repository/roblox-giant-survival-hack_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/hacks-para-boku-no-roblox_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/coin-master-hack-game-download_GM406889139.pdf
    • https://perpustakaan.iahntp.ac.id/repository/roblox-the-community-hacker_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/legitimate-coin-master-free-spins-apk_GM406889139.pdf
    • http://perpustakaan.iahntp.ac.id/repository/i-need-more-free-spins-on-coin-master_GM406889139.pdf
    • https://perpustakaan.iahntp.ac.id/repository/free-tiktok-followers-without-survey_GM835599320.pdf
    • http://perpustakaan.iahntp.ac.id/repository/infinite-jump-roblox-download-free_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/free-robux-generator-without-human-verification_GM431946152.pdf
    • https://perpustakaan.iahntp.ac.id/repository/dragon-ball-ultimate-roblox-max-stats-hack-2021_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdf
    • https://perpustakaan.iahntp.ac.id/repository/fidget-knot-free-robux_GM431946152.pdf
    • http://perpustakaan.iahntp.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003160.bin
e029f1ceb35603d16067409adea115b168ac8bb82a4a7bc0c3519c80eb723bac
pdf-font-stream PDF embedded font (sfnt) at offset 0x3160 23048 bytes
font_01_sfnt_off00006545.bin
28c9bc01e4e0aaae5e6cd7b959ce528b1d13ddddd6ca7928dd980e21e64ce208
pdf-font-stream PDF embedded font (sfnt) at offset 0x6545 19556 bytes