PDF malware analysis — malicious · 15b84ca95f006ceb

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 14:06:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: 9dac0792342d7d9a43712ffaeedb0e03 SHA-1: d8f0be8e09e74eaad2ad6f749da3db7bf005ad3b SHA-256: 15b84ca95f006cebc4f3819d5fc7f9be05b5b4c67d1301f6b828715f1fdb09f8

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The primary lure directs users to http://netcdn.tw/app/431946152/how-to-play-roblox-for-free-game-hack, which is flagged as malicious infrastructure. The document's content and embedded URLs strongly suggest a phishing or malware distribution attempt, likely leading to further compromise.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/how-to-play-roblox-for-free-game-hack In PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/irobux-com-redeem_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-loopkill-on-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/fling-hacks-roblox_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-camp-2-on-roblox_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/can-a-roblox-exploiter-hack_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/wild-savanah-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
- https://www.italisaitaly.com/uploaded_files/userfiles/files/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
- https://www.roblox.com/.IIn 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
`font_00_sfnt_off00003392.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3392	22224 bytes
SHA-256: `e9ec9a82567cf65cc501c2f582a49c87ce877fad16b74d1a4d6a5eaf92c67c81`
`font_01_sfnt_off000064de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64DE	19148 bytes
SHA-256: `aaf0d54e7fd0274c7752fb7be9e9a071e626545faba673eb0c299537eb1c178e`

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