PDF malware analysis — malicious · aa7db190e68a94bc

MALICIOUS

PDF

48.4 KB Created: 2021-06-11 11:47:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 42e0146c75f210b6893f47279e71b00a SHA-1: 102f4984bfe160a06197a823946ae7b32085ed34 SHA-256: aa7db190e68a94bcf7ab7f2ec46f878ff34dc320a4e5d8ceec5689d58cd91e9f

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 0.9796

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/hacks-para-roblox-xbox-one-game-hack PDF link annotation
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/pubg-uc-exchange_GM1330123889.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-robux-gen_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-house-for-meep-city-roblox_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/how-to-hack-roblox-2021-easy_GM431946152.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
- https://eagleeyebooks.com/ckfinder/userfiles/files/robux-hack-no-human-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
`stream_004_off000051a4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51A4	24584 bytes
SHA-256: `9a5824d7f499e49a01e223515a9ada1201e85240940e27c99c8f40c385a6eb15`
`font_01_sfnt_off000089d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89D9	6768 bytes
SHA-256: `fa93de321190668b294ff46149e4b98ac349b4fd022dcee9ecd964f7f59f3f9a`
`font_02_sfnt_off00009a18.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A18	18336 bytes
SHA-256: `90ee420a08bf84c92943ccfea31f2126ed0b904595ff5461edf70201cef9684e`

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