Malicious PDF — malware analysis report

Static analysis result for SHA-256 60fa2d5657b67c50…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 05:57:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: afef515f978f398e57df0ee167d3ad53 SHA-1: 05ea69fa2068fd152acc671daf3d2eabcba5cdc1 SHA-256: 60fa2d5657b67c50f72030f8a4f21676fb487c328ae32b45897b503ad25c7245
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs further supports a phishing or scam attempt. No scripts were extracted, but the document's content and linked URLs suggest it is designed to redirect users to potentially malicious sites for credential harvesting or malware distribution.

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/claim-free-robux-button-game-hack PDF link annotation
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-free-anamations_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/robux-mania-hack_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-pokemon-brick-bronze-cheat_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-december_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-get-a-free-roblox-group_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-speed-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/com-roblox_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-today-only_GM431946152.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://kpu-denpasarkota.go.id/new/public/ckfinder/userfiles/files/is-free-robux-real_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_off00002fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDF 22676 bytes
SHA-256: 6cedef8d2c6d4d1b65a3741a10f42a2ef843bb8c3ededa4429dce305a64be11c
font_01_sfnt_off00006272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6272 19276 bytes
SHA-256: 5ca6afd9ef6654ecee97696be31186890f5d02b6a4e0562937dffc5a9068c4b8

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