PDF malware analysis — malicious · 70112ebe7c38265b

MALICIOUS

PDF

32.9 KB Created: 2021-07-20 08:54:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 31832bbf5c2c9ce2c42c1333ed3e4858 SHA-1: 50e8771b73e3892280dd6a60aec9bca963e78ca1 SHA-256: 70112ebe7c38265b05d0d5d082862c67fb79ac4442fbbaec02caa3cd5be9279a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Robux' and links to a URL that is flagged as a redirector for game hacks. The document body also contains a call to action to download a generator. This suggests the PDF is designed to trick users into visiting a malicious site that likely hosts further malware or phishing content.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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-no-password-game-hack PDF link annotation
- https://amenergy.vn/public/upload/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-co_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-100-robux_GM431946152.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://amenergy.vn/public/upload/files/free-minecraft-hacks_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_off00002aac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2AAC	22392 bytes
SHA-256: `fc7dc6940b34003cec785c114a449d4c182b46b809fc5e87ca861ee8ded91c22`
`font_01_sfnt_off00005c82.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C82	18920 bytes
SHA-256: `e32cd2d9ef9c7d65ca6dcb56925fdb086d69ea06ee0e8757ce45dcc04a676380`

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