PDF malware analysis — malicious · 260ab64d25a66ed2

MALICIOUS

PDF

39.0 KB Created: 2021-07-04 06:22:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 9bdf674652a24703fb298c9e720609c6 SHA-1: 0e8f322febce58af1049ea02b97d16d24a039109 SHA-256: 260ab64d25a66ed2c24ac4e0ffb0b4b36d2101182890e106094b3106a0ad19ba

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency, such as for Roblox and Coin Master. The document body and embedded links suggest a phishing or scam attempt to drive traffic to potentially malicious sites or initiate unwanted downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9985

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/roblox-hacked-version-game-hack In PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/400-robux-free_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-hack_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/earn-robux-sites_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/hack-robux-gratis-2021_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/how-to-get-free-robux-with-the-nopde-cheat-engine_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-jailbreak-money-hack-2021_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/ingame-free-rubux-cheat-roblox_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/cheats-engine-roblox_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/free-model-death-star-roblox_GM431946152.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
- http://www.kraftyzone.com/uploaded_files/userfiles/files/wiki-get-free-robux_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_off000040d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x40D0	22692 bytes
SHA-256: `bcf89f8a35afb3379750861926fa2639f9c04e1442434fa5daf15d1869fbf8d2`
`font_01_sfnt_off00007387.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7387	19084 bytes
SHA-256: `e30baab197ea380a830251f11993b0159206347d5302a55b978f6309ced101e7`

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