PDF malware analysis — malicious · 12acd818f537e4fb

MALICIOUS

PDF

46.7 KB Created: 2021-06-11 07:27:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: c19a99e9fc9774d3c57da0899895d547 SHA-1: 13a7652cf0443c1f52f54ac6f024b99320cdf732 SHA-256: 12acd818f537e4fb6f0b3d405247a2b41ebebe38b528c863c8cad1cb2c94b0e8

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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.tw/app/431946152/free-robux-no-apps-game-hack PDF link annotation
- https://taxandmore.nl/wp-content/uploads/fsqm-files/hacks-para-wall-por-el-chat-roblox_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-robux-hack-on-phone_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-jump-hack-2021_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-jailbreak-noclip-hack-download-in-description-patched_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-studio-hack-message_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-minecraft-website_GM479516143.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-boombox-on-roblox-script_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-change-roblox-user-name-android-for-free_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-roblox-visors_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/is-it-possible-to-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/pastebin-hack-robux-2021_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/codes-to-get-free-vip-in-roblox_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-game-guardian_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-robux-from-cash-for-apps_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-hacker-t-shirt_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/robux-hack-no-survey-2021_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-today_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-cheats-and-tips_GM431946152.pdfIn PDF document text
- https://taxandmore.nl/wp-content/uploads/fsqm-files/free-rare-roblox-account_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
`stream_004_off000051e2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51E2	28984 bytes
SHA-256: `09503b2d0050bbfec02fe45debe306612b6cff64a02a6cdbb5877bec5cd68228`
`font_01_sfnt_off0000948c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x948C	18192 bytes
SHA-256: `dd781f2eaffddff6619a7729b763fabd5b8c4a088eef07f4c149f41bf202d502`

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