Malicious PDF — malware analysis report

Static analysis result for SHA-256 fac901cd5a5ff5fd…

MALICIOUS

PDF

35.3 KB Created: 2021-06-22 20:48:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0074c86fdb34cd36697f11ab04f61444 SHA-1: 1d8c047d066fae02a7592037cdae4e03c201f4ed SHA-256: fac901cd5a5ff5fdefe0f751643c232dde0f63cf007556fbe5dbd19263506b22
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links disguised as download opportunities for popular games and in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the ML classifier strongly flagged this PDF as malicious. The presence of these links suggests the document is designed to redirect users to potentially malicious websites for phishing or malware distribution.

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/479516143/minecraft-on-computer-free-game-hack
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-earn-robux_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-minecraft-capes-no-mods_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/game-toolbox_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/www-bandicam-com-free-robux_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/orewards-com-free-robux_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/hackear-coin-master-sin-verificacion_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-games-hack_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-link-2021_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/400-robux-free-2021_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-roblox-fe-scripts-pastebin_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-facebook_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-generator-without-human-verification_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-spins-hack-iphone_GM406889139.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-tiktok-likes-and-followers_GM835599320.pdf
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-spin-hack-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000340b.bin
5adb25972626470f33c3577a9e7e32c492150b384dcfe72060194168fddb68f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x340B 22688 bytes
font_01_sfnt_off000066ad.bin
7513e646e321e05ee14e7c487dba2482799d5320eb3bae11c9c2836e863cbe91
pdf-font-stream PDF embedded font (sfnt) at offset 0x66AD 18576 bytes