PDF malware analysis — malicious · 9cabe6b53637e95e

MALICIOUS

PDF

41.9 KB Created: 2021-05-20 01:30:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 5c932a0aa417c41a29cd0c2dd6b22db1 SHA-1: 18b69554d7841137b132adf4e8018afd3d47e2e2 SHA-256: 9cabe6b53637e95edbdd3d5933d60cd37804feb3b1d06e538ac0655975337c2d

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and free accounts. The primary lure URL is https://netcdn.xyz/app/1094591345/pokemon-go-free-account-2021-game-hack, which is part of a larger network of similar lures hosted on xhse.vn. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/1094591345/pokemon-go-free-account-2021-game-hack In PDF document text
- https://xhse.vn/public/upload/files/coin-master-hack-blog_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- https://xhse.vn/public/upload/files/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
- https://xhse.vn/public/upload/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/unlimited-robux_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-robux-mobile_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://xhse.vn/public/upload/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
- https://xhse.vn/public/upload/files/coin-master-2021-free-spins_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_003_off0000492b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x492B	24388 bytes
SHA-256: `dec19db8b0e18513053eda3a3a01f522d777659eb85a95ee9dcab48c23b3f52e`
`font_01_sfnt_off000080bd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80BD	18488 bytes
SHA-256: `e7e35d97f53e3cfba93d552cf1f22b359070db244372274453de6cc3ae082140`

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