Malicious PDF — malware analysis report

Static analysis result for SHA-256 c25833b67344acd2…

MALICIOUS

PDF

45.7 KB Created: 2021-06-04 00:25:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 216af2a56b926999a08c2a1170f890f0 SHA-1: ac8bc39ddc5eeef7e50bb87afec42086a893e216 SHA-256: c25833b67344acd229eb5a3ffaa2eafa9574e10da2cacb9867cb2d8558516866
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free followers' and 'game hacks', directing users to the URL https://netcdn.online/app/835599320/tiktok-free-folowers-75-game-hack. This URL likely leads to a malicious site or a further download. The document's structure and embedded URLs suggest it is part of a phishing or scam campaign, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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.online/app/835599320/tiktok-free-folowers-75-game-hack PDF link annotation
    • http://psb.sd-alazhar29.sch.id/repository/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/get-me-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-data-breach_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/pubg-uc-carding-quora_GM1330123889.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fdd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FDD 24000 bytes
SHA-256: 75c01a47784787b99553dfb8ef44ca6d28d7f45470c1d9135e71d3d33c3c848b
font_01_sfnt_off000086f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F9 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off000090e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E4 17884 bytes
SHA-256: 404779b8c8364144b44e92c4b5e5735fc0c76db702fe63bada2e05c8125a3b90

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