PDF malware analysis — malicious · 6c0df0bbd59e2d13

MALICIOUS

PDF

42.8 KB Created: 2021-05-15 13:47:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: f5c7dd6c271ef54eae96f16d444e02eb SHA-1: fdfaee95c0fb8117a971b6bca18e043ae8df5eac SHA-256: 6c0df0bbd59e2d136c3e61c090731a14702099d1c98836fa221163edfee8072b

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document contains numerous links designed to redirect users to potentially malicious websites, including a known malicious redirector. The document body and embedded links suggest a lure related to game hacks or free in-game currency, a common tactic for distributing malware or conducting phishing. The presence of a link farm and a malicious redirector strongly indicates a malicious intent to drive traffic to harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/best-minecraft-hacked-client-game-hack In PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-free-500-spins-link_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/www-robux_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-robux-android_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/roblox-free-followers_GM431946152.pdfIn PDF document text
- https://elearningaliyah.almubarakddi.org/__statics/gudangsoal/files/best-site-for-free-coin-master-free-spin-link_GM406889139.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_off00004c5a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C5A	24944 bytes
SHA-256: `2cddac6058ac6a2cf7fd3aae8a7aa1fbc83b0cf93d82dccd15facffae11e2170`
`font_01_sfnt_off00008543.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8543	18200 bytes
SHA-256: `05f9c4237b996275e109c4becad50b5cb7d88affc4d3e55964976ee2f9eee8f2`

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