PDF malware analysis — malicious · 49599062c5ff35fc

MALICIOUS

PDF

44.4 KB Created: 2021-05-16 11:17:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: fcc142465e58ec4d7c421eb813df309e SHA-1: f6755460aa7592d309199d775e35e4a789a9cb51 SHA-256: 49599062c5ff35fca8ea721eb86c3990a918ab502576699c6cc3e13e6905c486

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 virtual currency generators. The document body itself contains obfuscated text and references to these lures, indicating a social engineering attempt to trick users into visiting the malicious URLs. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/406889139/lastrick-com-coin-master-hack-game-hack In PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/robux-website_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/roblox-hack-client_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-game-download-free_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
- https://quatangphongthuy.vn/upload/UploadFiles/files/free-robux-no-anti-bot-verification_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
`font_00_sfnt_off00004c44.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C44	23984 bytes
SHA-256: `43bb700768747115d7ad9709df8cc60a023793d9d4fbcb3536b13879be80f3b2`
`font_01_sfnt_off0000821c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x821C	2868 bytes
SHA-256: `d2d857e2ddc1082c7667b23f2135a5c0ba26a2ff8b42c86c89c8e0b09aece855`
`font_02_sfnt_off00008c07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C07	17976 bytes
SHA-256: `24c05c4553955a7d5dc0138d87aec54e9ee3b9904c328382cc8e24dd34e608e2`

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