PDF malware analysis — malicious · bf002e59341ab79e

MALICIOUS

PDF

48.2 KB Created: 2021-05-14 12:02:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 9f3606fff9c1782bba96551c1c2a9d68 SHA-1: 2811a4df90bcffe1cb1b0399b4ceeb5b168cd99d SHA-256: bf002e59341ab79e4751a968caf330cd87f44baeef600efad27a9a08556e2d4b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links that are designed to lure users into clicking on them by promising game hacks and free in-game currency. The primary link, 'https://netcdn.xyz/app/406889139/coin-master-free-spins-link-blogspot-2021-game-hack', is flagged as a redirector for game hacks. The document body and heuristics indicate a social engineering tactic to drive traffic to potentially malicious websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

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.xyz/app/406889139/coin-master-free-spins-link-blogspot-2021-game-hack PDF link annotation
- https://www.vadai.sg/uploaded_files/userfiles/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/roblox-rewards-robux_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/how-to-robux_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/free-robux-download_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
- https://www.vadai.sg/uploaded_files/userfiles/files/how-to-get-free-robux-easy-hack_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.

Filename	Kind	Source	Size
`stream_003_off00004aad.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AAD	24600 bytes
SHA-256: `4acefc0e64e3c3f8aa4f7233598cb181511018f83ebbb23673d261ab34db5d64`
`font_01_sfnt_off0000833b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x833B	8676 bytes
SHA-256: `e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468`
`font_02_sfnt_off000097c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x97C6	19036 bytes
SHA-256: `a1db0e26d638f2546736f1f7b434dee98a1c5e726f40723477b7c203db66759e`

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