PDF malware analysis — malicious · ea71ed911e118d5e

MALICIOUS

PDF

45.6 KB Created: 2021-05-13 19:55:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 2eb2d838f30af27874542974d50d59ca SHA-1: f0f7e7113a47b9d03f71340f24781513cd71d4bc SHA-256: ea71ed911e118d5e047fae42fc52c5b2e6172e21330694c422311069c33e34a9

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users to websites offering game hacks and generators, which are known malicious redirectors. The document body and embedded links explicitly point to these scam sites, aiming to trick users into clicking through. The presence of multiple links and the nature of the lures suggest a phishing or scam campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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/406889139/coin-master-hack-without-verification-or-downloading-apps-game-hack In PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/robux-generator-com_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/robux-scam_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/earn-robux-now_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.man2brebes.sch.id/__statics/gudangsoal/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004abb.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4ABB	24624 bytes
SHA-256: `9b7942bc4e2b5d770a0a571acb073544202242b95130f7cead2c2a69c40c47d4`
`font_01_sfnt_off0000827a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x827A	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008c2c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C2C	19400 bytes
SHA-256: `7055c0b927c5b3f5d83892c818414459ed7060aca91a64b83b2bd90b5073d3c7`

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