Malicious PDF — malware analysis report

Static analysis result for SHA-256 5126e2681983bc6c…

MALICIOUS

PDF

36.1 KB Created: 2021-07-05 05:50:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5e0a7b6ff8ea5ea3dc332d07e6deb91c SHA-1: d6a093922e34b7894bae38e978a01b742a435f56 SHA-256: 5126e2681983bc6c2226d975b6cb5c78eb7e1dce3e5d0b83d05821acf9dfd52a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, suggesting it is designed to redirect users to external sites offering game hacks and cheats. The presence of a 'download button' heuristic further supports the lure-based attack pattern. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a high likelihood of leading users to malicious content or further infection vectors.

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/coinmaster-game-hack
    • https://digilib.akperkabpurworejo.ac.id/repository/hacker-vs-admin-roblox-jailbreak_GM431946152.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/dragon-ball-n-roblox-hack_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-hack-through-wall-in-roblox_GM431946152.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-get-the-best-shirts-on-roblox-free_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-free-spins-hack-link_GM406889139.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-studio-mac-download-free_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/hack-para-counter-blox-roblox_GM431946152.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-hack-penis_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-cheat-engine-change-stat_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-spin-2912-2021_GM406889139.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-hacks-for-craftwars_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/free-ornaments-horrific-housing-roblox_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/minecraft-for-laptop-free_GM479516143.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-make-a-roblox-hack-using-hxd_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-catalog-hack-2021_GM431946152.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/free-op-roblox-exploit-seraph-v2_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-make-free-robux_GM431946152.pdf
    • https://digilib.akperkabpurworejo.ac.id/repository/robux-hack-2021-no-human-verification_GM431946152.pdf
    • http://digilib.akperkabpurworejo.ac.id//repository/get-me-robux-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003721.bin
c1164d4f716f31206cf2aaef89d21be9566467a82699babbae0032cf651072e6
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3721 23184 bytes
font_01_sfnt_off00006b22.bin
aeec47090e2d397d52e6994ac52fcd26f4fdd646fe6594f845e9ca54af877ae9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B22 18092 bytes