Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9b0f609e25dc8a…

MALICIOUS

PDF

34.7 KB Created: 2021-06-24 22:38:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4a7ffffa957e947116cfc122e9909760 SHA-1: 38288c71f2f30ce78e26ec98eda281be2f59367c SHA-256: ed9b0f609e25dc8a8964a22e30498afe89a9dd876fde38a8a198f24b51733faf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, disguised as 'free generators' or 'game hacks' for popular games. The primary lure URL is http://netcdn.co/app/431946152/how-to-give-robux-on-mobile-game-hack, which is flagged as malicious. The document body and embedded URLs suggest a phishing or scam campaign aiming to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/how-to-give-robux-on-mobile-game-hack In PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-admin-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/carte-roblox-free-card_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/can-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-cb-ro-hack-download_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/natural-disasters-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/tiktok-free-textbooks_GM835599320.pdfIn PDF document text
    • http://e-learning.mialislamiyahckp.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.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_off000030c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C5 22532 bytes
SHA-256: b20050c6abd702647af8ce5fa207c2230d95347a8e49ebb5b9db8ddcce24a266
font_01_sfnt_off000061f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F9 19220 bytes
SHA-256: 424900dac97a3687442371db0e2676db335f1cd3f9ee3aa89b35753401a72ca9

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