Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f966bdd0cda8ba…

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 21:57:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 89fea9a4e58e282a5717c30a018b069c SHA-1: 5b8673ea97263d3eeeaa9d583a4fae1446b1fc68 SHA-256: 56f966bdd0cda8ba6bcf4a119984afc99d68d2812fc330b9bd1270b29be43ea3
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/431946152/how-can-i-get-robux-game-hack PDF link annotation
    • http://opac.salatiga.go.id/slims7/repository/free-roblox-vip-server-for-lab-experiment_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/obc-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-hack-roblox-accounts-in-game_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/instant-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-gamepass-script-hack_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-download-roblox-cheats-hack-tool-v2-3_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/pubg-uc-100-bonus_GM1330123889.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-hacked-games-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/get-free-robux-download_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-robux-generator-no-survey-or-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robloxcom-robluks-for-free_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/best-free-roblox-exploit-auto-update_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-robux-quiz_GM431946152.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_off0000303a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303A 22456 bytes
SHA-256: 85baf7f21f0d24f3859c1e9fd071778bbcecc6d0d376cc6093578b1d3f1591dc
font_01_sfnt_off00006263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6263 18820 bytes
SHA-256: c5e3dadbee401af008206382b0bcf9336b874183f98af384875f13c533e0884f

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