Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6f1fae570dd4d80…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 18:23:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 11debb4344e6f1e9b880b0c0c59379fe SHA-1: decd98cd301ee01558b84c72c5087aaa9de74fed SHA-256: d6f1fae570dd4d808b3f213917da6d47cbc19fdda3393e9d6d2369882cd56a1f
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/406889139/coin-master-strategy-game-hack PDF link annotation
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/google-play-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/ww-roblox-come_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/hack-para-roblox-dansploit_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/how-to-fly-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/how-to-make-a-free-robux-game-v3rmillion_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/glitch-for-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/roblox-cheat-codes-for-money-on-jail-tycoon_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/free-robux-without-having-the-vera-cage_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsnbarsel.sch.id/__statics/gudangsoal/files/plug-toolbox-for-minecraft-free-ios_GM479516143.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
font_00_sfnt_off0000319a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x319A 22460 bytes
SHA-256: b2d5f3595f00d14a89205c94793fe88455de1d83dc9e89d5fdc68cd00c3dbd02
font_01_sfnt_off00006391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6391 18012 bytes
SHA-256: 4f579d94171b2fb142acdc02da4125f337278d5d3ad6120ec8946e2a41f84a81

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