PDF malware analysis — malicious · 86cf85692581818f

MALICIOUS

PDF

56.7 KB Created: 2021-06-07 18:57:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 93d89c322b78720649652c520b5b813a SHA-1: 87a68f884cb2b54e4872ea4362b7692ff5eed218 SHA-256: 86cf85692581818faf28472fc47c265f7dc64c4992f7b9c5c54f0ffd4f8a9a45

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on vierabyragazze.com and appear to be related to game hacks and free items. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags this behavior, indicating a social engineering attempt to lure users to potentially malicious content. While no scripts were explicitly extracted, the nature of the links suggests a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9717

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.tw/app/431946152/comment-faire-pour-hacker-sur-prison-life-roblox-game-hack PDF link annotation
- https://vierabyragazze.com/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/get-robux-today_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-roebucks_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-free-items_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/earnrobux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/king-hack-esp-roblox_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/toolbox-for-mcpe_GM479516143.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_004_off0000569c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x569C	25232 bytes
SHA-256: `6a0f47f22c7086d1e16f03d3ce2d1ed39ca25de04ea2c5303b1358511b615b77`
`font_01_sfnt_off00009161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9161	12800 bytes
SHA-256: `db399d969d9309c9c38cb6e3c43aa83c06d227a5470715de93176d1df1e6747d`
`font_02_sfnt_off0000b93e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB93E	19124 bytes
SHA-256: `4189edca1a9f23449fe057e226bac8ac796ecc01a4976349bb8fc9be577d818f`

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