PDF malware analysis — malicious · 9cc9b68ae02512d3

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 16:22:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24

MD5: 2e4a19adae7d5ac44011974f19a0ef93 SHA-1: f324b3a8b470583812f3e5896c9d78e90eb0897e SHA-256: 9cc9b68ae02512d3878b69a100fbfa4ddd3b35b03ee1467dde2ee4d779ca66dd

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as free game hacks and generators. The primary lure is a link to 'free-minecraft-domain-game-hack', which points to the malicious infrastructure at 'netcdn.online'. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/free-minecraft-domain-game-hack In PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/rbx-roblox-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/earn-robux-today_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/best-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-generator_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-mgui-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-daily-free-spins-on-coin-master_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_off00005125.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5125	24948 bytes
SHA-256: `cbdd0f67b5f3b0b8e662239192d7998892b915d3a9e3f17f932ba0f4d1eadc2c`
`font_01_sfnt_off000089d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89D6	18140 bytes
SHA-256: `76c28744f84ad7629b6da3b9b5fa316c70ee5e9c8c86c1afc77ec6d129fcd0f8`

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