Malicious PDF — malware analysis report

Static analysis result for SHA-256 75e859242cd07ecb…

MALICIOUS

PDF

44.0 KB Created: 2021-05-15 02:38:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2f805a7cfb729fd4e53e3aee48725498 SHA-1: 80fc49d1e22a271ead34ef46b5cea60bb601630d SHA-256: 75e859242cd07ecb20588e8ebd2dea61040d6df2fcd87972443061c86b31a633
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 0.9969

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 https://netcdn.xyz/app/431946152/roblox-zone-free-robux-game-hack PDF link annotation
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-free-account_GM406889139.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_off00004e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E32 26136 bytes
SHA-256: 570f38bb699d24ae4e049b72e7188c1b4580546458efc3a0640582e5f5effd59
font_01_sfnt_off00008a00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A00 18180 bytes
SHA-256: fa0bfd9229dff732b79349aec0b82eb394b94074e398d1bd7575aad3963e16a1

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