PDF malware analysis — malicious · dd124fcee31a3e34

MALICIOUS

PDF

45.3 KB Created: 2021-05-30 06:17:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: f6a5ba272d2f471d8aa9d139acbbb31b SHA-1: dbaeacb1f636c8994232cbc5c3de95f22d4ec5e5 SHA-256: dd124fcee31a3e34aed2770cf42f522f7eed58d1d610ba91f08aada2ccc69c18

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9538

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/431946152/how-do-you-get-free-robux-on-roblox-game-hack In PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/minecraft-pc-free_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/rbx-free-robux_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/tiktok-free-fans_GM835599320.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://ilya.ro/wp-content/uploads/fsqm-files/free-tiktok-app_GM835599320.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
`stream_003_off00004f79.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F79	27004 bytes
SHA-256: `67cb728ce57e72e0cb6169bf2081161fd6c77bdc50d2250c38d62ae94f5fc5a7`
`font_01_sfnt_off00008ceb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CEB	18688 bytes
SHA-256: `1a1edbb4620230d43f84097700922ea11c75fa5ad69815b80eb1b16329c7dce0`

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