PDF malware analysis — malicious · f09ea10b062fe011

MALICIOUS

PDF

35.9 KB Created: 2021-07-04 07:58:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: ce766a20ba2f2be777b0b24ceba9c600 SHA-1: ab8d2813a06b59c4d45a101f719541dfa0bd31b3 SHA-256: f09ea10b062fe01113eaa214948e9200a7ff7102ad4fc0985b92416d7c9baeb3

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 0.9980

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 http://netcdn.tw/app/431946152/free-robux-just-enter-username-game-hack PDF link annotation
- https://www.anders-sofa.com.tw/uploadpic/files/roblox-jailbreak-free-money-hack-2021_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/free-tiktok-followers-no-survey-or-verification_GM835599320.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/free-robux-without-human-verification-or-offers_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/dino-sim-roblox-how-to-get-free-dinosaurs_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-link_GM406889139.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-cards-free_GM406889139.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/free-robux-generator-v4-robuxian_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/pro-skin-free-roblox_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/robux-websites-that-work_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/free-face-codes-roblox_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/free-robux-hack-2021-august_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/how-to-get-free-coins-on-assassin-roblox_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-hacks-android_GM406889139.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
- https://www.anders-sofa.com.tw/uploadpic/files/how-to-get-minecraft-windows-10-for-free_GM479516143.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_off0000324b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x324B	23228 bytes
SHA-256: `799d5f21530fbb7232654ee7e72678d57e137fc1d1e9f3ff17158a041f40f105`
`font_01_sfnt_off000066ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66AD	19244 bytes
SHA-256: `bb42f0e36b7288fba8af59efb142b286361a630cbb1699ef387bab73f1413400`

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