Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08a94484ebe5b66…

MALICIOUS

PDF

44.0 KB Created: 2021-05-14 13:15:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bca1d5b96410ac8565702ba47445cc67 SHA-1: 8b4488e2c13833b4048fe0d44fac2e7843c198d6 SHA-256: e08a94484ebe5b6608e9537e9f38fc97ac751dd609f441447ed7525bb2685fea
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a significant number of external links, indicating a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains URLs that appear to be lures for game-related cheats or hacks. The presence of numerous PDF links suggests an attempt to drive traffic to these external resources, potentially for advertising revenue or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.xyz/app/406889139/free-coins-on-coin-master-2021-game-hack PDF link annotation
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://e-learning2.man4sukabumi.sch.id/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.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
stream_003_off00005061.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5061 25036 bytes
SHA-256: 9e42f47800632daea6b330bd8d0fe22adbee16ac36daaf699aa42d3419ca7f27
font_01_sfnt_off00008a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A41 18112 bytes
SHA-256: c5e468742e62e06c21361d19e1ed31993db812d2d58ce4c8358e47098e3422dc

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