PDF malware analysis — malicious · 216bf7aa0ae243aa

MALICIOUS

PDF

46.4 KB Created: 2021-05-12 04:12:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 7366e25f605ba59c2cbcb3fc20e952c6 SHA-1: c1ebf57592a51748552cf2ea76d97a75b32dcd9a SHA-256: 216bf7aa0ae243aacbc7ffbd2950e206af876f67228ad01434b2b09c66fac231

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and SEO link farms, disguised as game hacks and free item generators. The primary lure URL is https://netcdn.xyz/app/479516143/minecraft-pocket-edition-free-game-hack, which likely leads to a malicious payload or phishing page. The document's structure and embedded links strongly suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/479516143/minecraft-pocket-edition-free-game-hack In PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/robux-apk_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-bobux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/minecraft-free-education_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
- https://education.minecraftIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004d91.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D91	26212 bytes
SHA-256: `a83bd5729dca1fd16937791e05029d7dd9aed246c3e2d3a9060faaa64f197348`
`font_01_sfnt_off0000894a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x894A	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off0000935a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x935A	18208 bytes
SHA-256: `2ed6c6c26b313aca39a14255061e0cb7ebbe0fc3f7500b174c0a7a92c92a7b7b`

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