PDF malware analysis — malicious · 2e8971a2b771d1b3

MALICIOUS

PDF

50.7 KB Created: 2021-06-03 12:34:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: c8c8c63a3ba59af6201ad1eb7630de3f SHA-1: 7c8e46fdf2a97653aa28a58a56e80d7521efb3d9 SHA-256: 2e8971a2b771d1b31c7720679cdbe045f5c836b476d65c8deb3c1c8a8b041844

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 0.9681

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/406889139/coin-master-card-collection-hack-apk-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/tiktok-free-template_GM835599320.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/https-rbx-place-rewards_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-free-printables_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off0000549e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x549E	24584 bytes
SHA-256: `5f1d2ecfa1ebb67e82f464c127d550c5e42358cb9a5346db16c58cfcabae67de`
`font_01_sfnt_off00008c0a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C0A	4028 bytes
SHA-256: `a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91`
`font_02_sfnt_off000099ab.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99AB	2788 bytes
SHA-256: `6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530`
`font_03_sfnt_off0000a39b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA39B	18140 bytes
SHA-256: `68c29d815848bb603bcc9c69777aac60e323e9398a8fda93459a550b8c2ca937`

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