PDF malware analysis — malicious · ae5660d07edf6135

MALICIOUS

PDF

35.2 KB Created: 2021-06-22 03:43:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 19f8e981a83bff719c1e8e60c2342aa6 SHA-1: a4ee424b8ec684f3e11584a35fc6a6a48d74dfde SHA-256: ae5660d07edf6135214b81aec9bb12d97f4fae5cb89fb542d54012764a41f08e

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 0.9980

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/free-robux-exploit-2021-no-virus-game-hack PDF link annotation
- https://www.nara.org.uk/uploads/files/files/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-stream_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-114-download_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-get-your-hacked-account-back-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-100-robux_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-login-hack_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/master-coin-free-link_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-roblox-levels_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/earn-rbx_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-meme-stshirt-free_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/robux-money_GM431946152.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00002e3d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E3D	23060 bytes
SHA-256: `04670f01a2e7880424836f705614b392e18eb4b08bdeb10af4ae54eb259df033`
`font_01_sfnt_off00006270.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6270	19728 bytes
SHA-256: `758ff6884c946b092582b33681e6917bc7507f6d513841277ea610b532715741`

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