Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aeb1fb1495a53bb…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 08:50:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 2c9fe283bb2d79ba3322aeec41a81a57 SHA-1: aa23dc4bafb6901817b0ade21aa89f873fd7dc9f SHA-256: 9aeb1fb1495a53bb4d792452aee7290be1af41b6a15894f76edc949b16c214f8
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/minecraft-java-edition-free-download-for-android-game-hack PDF link annotation
    • http://opac.salatiga.go.id/slims7/repository/how-to-be-a-free-admin-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-noclip-in-roblox-with-cheat-engline_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-roblox-accounts-phantom-forces-account_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/irobux-com-redeem_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robux-promocodes-no-hacking_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/cheat-engine-roblox-fr_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/earn-rbx_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-more-tix-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-robux-hack-installer_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/fe-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-robux-survey_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_off00002ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED7 22116 bytes
SHA-256: 4a79a895c9a2419e73ae2a6a85c5d9a83c0f7d1089335a92ad0160039ab62a2c
font_01_sfnt_off00005fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB1 18856 bytes
SHA-256: c43022659d2334bb80aa9650c1d831b37683b3bffb68bd4d8ca36e01fa2f38bf

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