Malicious PDF — malware analysis report

Static analysis result for SHA-256 165d14b85083ae81…

MALICIOUS

PDF

34.5 KB Created: 2021-07-07 16:13:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5a9e304d170e6c2a2b6b7c385522f173 SHA-1: 7b56e38d0f7b452e314aea021f7c7ef50d66e19a SHA-256: 165d14b85083ae818ce56f84b8c47b29da4a77922d8e5e442f68ea818b4f011e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.tw/app/479516143/how-to-get-minecraft-for-free-on-phone-game-hack PDF link annotation
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-app_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-free-item_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/jailbreak-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-robux-script_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-attacks-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/roblox-making-hacker-smilator-wild-west_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-robux-inspect-element_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/robux-place-rewards_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsnparung.sch.id/__statics/gudangsoal/files/whats-robux_GM431946152.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_off000031e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E9 22404 bytes
SHA-256: c869e30b365c7b3135a6125756e3261bc970c804fa94dd6f40dd9b7981ea308d
font_01_sfnt_off000063c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C4 18484 bytes
SHA-256: 487100d73f6d1c6bb9027b4b0f8fffe0540623d8809bb1f7b8366124ba2b3e2a

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