Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82407dce031dc2e…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 17:47:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 515ab87651ae57bb58db44a11ae71c8d SHA-1: a04fa59cda53f8957da7c1c4472d150dc5626499 SHA-256: d82407dce031dc2e063b20b5820b3d9f30185f31bc23aaf174012358cd3334c6
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are disguised as game-related downloads or hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the ML classifier strongly suggests maliciousness. The document body contains a primary URL that appears to be a lure for game cheats, and numerous other similar links are embedded.

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.tw/app/406889139/freespinandcoin-blogspot-coin-master-game-hack PDF link annotation
    • http://opac.salatigakota.go.id/slims7/repository/roblox-dino-sim-duplicate-hacks_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/i-hacked-into-roblox-omg_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/hack-roblox-prison-life-francais_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/unlimited-robux-hack-for-computer_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/adopt-me-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/save-the-galaxy-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-robux-and-not-do-a-survey_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-animations-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-can-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/coin-master-game-hack-apk_GM406889139.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7//repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/hacking-peoples-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/roblox-se-througth-all-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatigakota.go.id/slims7/repository/how-to-get-free-robux-inspect-element-2021_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_off000030ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BA 22856 bytes
SHA-256: f1e791e1ed23aded0c1f895381aef5b970603295cc55a08aa99025afe1f390ce
font_01_sfnt_off000063da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DA 18636 bytes
SHA-256: d84bb04fefb4f2e9dfb813ccc956a98457a2ce2ab52c22d2d2b9038e7737e303

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