Malicious PDF — malware analysis report

Static analysis result for SHA-256 e010d63308010910…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 22:27:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8c2c343df30b8349d75e175723103c0c SHA-1: 082a80f0699eec55a920444b60530d331f573281 SHA-256: e010d633080109109aabd8d4389d89164e4201bb8a925a62bb7ce55d37c172da
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to external resources related to game hacks and generators, suggesting a lure for users. The presence of a PDF URI heuristic and a high ML classifier score indicates malicious intent. While no scripts were explicitly extracted, the document's structure and embedded links are indicative of a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/free-coin-master-generator-game-hack
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-ios_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/free-robux-app_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/free-coin-spin-daily-link-net_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/master-8-ball-pool-free-coins_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/free-robux-2021-no-verification_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-latest-mod-apk-free-download_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-for-coin-master_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/robux-generator-no-verification-needed_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-cheats-2021_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/bloxawards-com-earn-free-robux_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021-today_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/roblox-bloxburg-hack_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-free-spins_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-mod-free-download_GM406889139.pdf
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coinmaster-com_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005336.bin
87c49253f2ff298acddb63d88a3d30e76d0aee5bdbe7cc0e57dc345b198345db		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5336 25640 bytes
font_01_sfnt_off00008d5f.bin
257a612313d270105d122f3198241e5dbbd2f563e6a420601a0e3220659a58bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5F 17712 bytes

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