PDF malware analysis — malicious · 56fa6cde596d05c1

MALICIOUS

PDF

33.8 KB Created: 2021-06-29 20:03:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25

MD5: 460334d464c740b12d728d5a8567720b SHA-1: 89db97a5e2d2eb37797573612b43dce991068d64 SHA-256: 56fa6cde596d05c124c6d4ac90272670f0a12b0a37cf71b150b019eadf46051f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary redirect URL is http://netcdn.co/app/431946152/date-hack-roblox-game-hack, which is flagged as malicious. The document body and embedded URLs suggest a social engineering lure to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.co/app/431946152/date-hack-roblox-game-hack In PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-shovocado-roblox_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/i-hacked-this-person-on-roblox_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/how-to-hack-someones-acount-on-roblox_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/descargar-roblox-hackeado-android-1_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/roblox-spiderman-mask-free_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/wearedevs-cheat-roblox_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/roblox-eclipsis-hack_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
- http://www.jetape.com.br/ckfinder/userfiles/files/free-shirt-roblox_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
`font_00_sfnt_off00002f77.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F77	21832 bytes
SHA-256: `4b184752956463912bc93c01105a4ab719965e2c9fe3534606ab83197b18ef1b`
`font_01_sfnt_off00005f43.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F43	18928 bytes
SHA-256: `dd7f92ce2b06f30cf2994c034a7f3eb267199d07edca218c41ad44859af83d3c`

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