PDF malware analysis — malicious · d64b9cac8277debc

MALICIOUS

PDF

45.6 KB Created: 2021-05-30 16:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 0d48448486c495212df70b84dc74738d SHA-1: 6b4e0e493c2e4d7f47873328fb6a3da1e4520a3a SHA-256: d64b9cac8277debcce819eccbd06da577a70e00ce5b1d8517bbb92da25690b71

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors, disguised as 'free game hacks' or currency generators. The document body and heuristics indicate a lure designed to entice users to click these links, likely leading to further malicious content or downloads. No scripts were extracted, but the presence of malicious URLs and the lure strongly suggest a phishing or redirection attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9580

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/431946152/how-to-get-free-robux-easy-game-hack In PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/rbx-free-robux_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-free-robux_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-minecraft-codes_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/tiktok-for-free_GM835599320.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.racoh.edu.gh/wp-content/uploads/fsqm-files/minecraft-fly-hack_GM479516143.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_003_off00005468.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5468	24916 bytes
SHA-256: `84bfa709c2090c26d43a2698c311b5dbdd3c197365918c58f42ed9203d8a61e5`
`font_01_sfnt_off00008dde.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DDE	18688 bytes
SHA-256: `afa93f6b5b78c11c56913a3e0021d293f85f1b4278f41e2b8713ad9a89f051de`

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