Malicious PDF — malware analysis report

Static analysis result for SHA-256 aedd3e344d04da62…

MALICIOUS

PDF

33.1 KB Created: 2021-06-28 03:45:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b3e67c0e7641aea1e45ad3e5bd19383c SHA-1: e519ac0b16fc398f03c80284a160c2d9e4e4dad6 SHA-256: aedd3e344d04da626d44f55c8db5c7240a0855898267c4340984f12819e035f7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to game hacks and generators, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple embedded URLs reinforces the likelihood of a malicious download or redirection attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/descargar-roblox-hackeado-para-pc-2021-game-hack PDF link annotation
    • https://xiangquan.com.tw/image/data/files/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/legend-of-dragons-rpg-free-admin-roblox_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-roblox-plane-models_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-you-get-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/pubg-uc-seller_GM1330123889.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_off00002abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABD 21960 bytes
SHA-256: 9004f9c557fa1ffe42f9a84643d800366f557be6eda33bdbca19509a0d821519
font_01_sfnt_off00005ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD4 19556 bytes
SHA-256: 229dc2ba19887073d48c9fd02cabcb85864bf9afba4264e6a7d54d505d77f364

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