Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e5e3056bcc7656…

MALICIOUS

PDF

37.6 KB Created: 2021-06-21 11:15:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5b410caa35861d15ca03ebefd0ec6f9b SHA-1: e80aa567f916912f3a62484d011151e779870693 SHA-256: 58e5e3056bcc7656a74199e020fe7854d48ee126de0879027f31e3dc59186033
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, luring users with promises of free in-game items for popular games. The primary malicious link, http://netcdn.co/app/431946152/free-clothing-on-roblox-game-hack, likely leads to a malicious site or download. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering attack aimed at redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/free-clothing-on-roblox-game-hack PDF link annotation
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-hack-pubg-uc_GM1330123889.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/pokemon-go-free-yveltal_GM1094591345.pdfIn PDF document text
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CED 22236 bytes
SHA-256: 6600e9557f9e84d9c03dc772c4a1d2049a1e616271dc6e5fccd4e302be58bb00
font_01_sfnt_off00006e55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E55 19040 bytes
SHA-256: 91f50e35acf681a7c747939e3f9b2bbafebc71fb362ec7e3261ae1ae26f4098a

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