PDF malware analysis — malicious · eb98a798c34fe3c0

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 06:20:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 4a47add37df710611ce72e0a22ca9c22 SHA-1: 11800e8f0dc0ec6e7bafdbc0c7e92e98ba3ecc3b SHA-256: eb98a798c34fe3c0a221e5644f5c1ac26dc0f5b16c110417ec5f14ba89a7467c

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 0.9865

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/free-links-to-coin-master-game-hack PDF link annotation
- https://www.ak-oroslavje.hr/files/coin-master-hack-safe_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-roebucks_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/robux-redeem_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/roblox-free-bundles_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/robux-for-offers_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/get-more-robux_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-heaven_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-com_GM406889139.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
`stream_004_off00005151.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5151	25320 bytes
SHA-256: `d768af09b6d5d4ef1270f6b438848f0950d0a4f26f27c59148f8750a5dfacd90`
`font_01_sfnt_off00008a7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A7D	17880 bytes
SHA-256: `1898eeb35173f70b59c84058d9d8580582d84ad8b6feb537a53f23d464b6e221`

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