Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9c6f7d2ac728b21…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 09:39:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 143cc761f2d5dbc5aa94f01cb7356460 SHA-1: 560ef795d3704afb335889259723280a752bde5e SHA-256: d9c6f7d2ac728b2198bccce89ac9666dc78347f36fbe15166d37217590fef2e3
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which are presented as 'SEO-optimized' links pointing to files related to game hacks and free currency. The document body explicitly mentions 'Roblox Free Account Codes' and includes a direct URL to a download, indicating a lure for potentially malicious software. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or malware distribution attempt.

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-free-account-codes-game-hack PDF link annotation
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/nuevo-hack-de-robux_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-to-get-free-faces-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/mm2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-using-nopde-engine-64_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/chisel-and-bits-mod-pe_GM479516143.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • http://e-learning20.min2pontianak.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast_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_off00003021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3021 22316 bytes
SHA-256: 1b674ba5b32dfdd6ad7090b86e9e05ac026106abfedb72feba91a0e1c05e7cc2
font_01_sfnt_off000061c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 19068 bytes
SHA-256: f011277640b41c4bb0c00c83e33d234c6d0bcf007d918f4c3d29ca7e86638f21

Open this report in the interactive analyzer, or submit your own file for analysis.