PDF malware analysis — malicious · 9b3c28428f509496

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 08:26:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: 06e33a79df682b5947780461b6219bc8 SHA-1: 39bd4d88d4a0bc86a2b0d4b23b6a5e9ee73385f3 SHA-256: 9b3c28428f509496b59488c4850cbee44e2a2935c73822c1048967ba5491d079

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or free generators. The primary link, https://netcdn.online/app/406889139/free-coin-coin-master-game-hack, is identified as a malicious redirector. The document's structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content.

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/406889139/free-coin-coin-master-game-hack In PDF document text
- http://croatia-flyfishing.com/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-games-hack_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/coin-master-mod-apk_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
- http://croatia-flyfishing.com/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-robux-ad_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
- http://croatia-flyfishing.com/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/free-robux-hack-2021_GM431946152.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_off00005428.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5428	25252 bytes
SHA-256: `c7c4abd7714344cf43e71c775e30641604726ad575f2dd8600c610cbe9b82c93`
`font_01_sfnt_off00008db6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DB6	17712 bytes
SHA-256: `effefb876c7a76aa063811ff0160e46fb8a90dd5507c6c48ef6fa39823ab5c8c`

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