PDF malware analysis — malicious · 6daaafba12e039f7

MALICIOUS

PDF

35.1 KB Created: 2021-07-08 09:47:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: acbdc4fa261098205304727af34a50e1 SHA-1: d15b1114257c5cf81078f2e93762419481f54602 SHA-256: 6daaafba12e039f7022a6897b06ad135e004d2a7bcf0dd28126af47c82249e12

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/406889139/coin-master-hack-ios-jailbreak-game-hack PDF link annotation
- https://ambasador.md/ckfinder/userfiles/files/hack-client-for-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/free-robux-gift-cards-2021_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/hack-password-android-roblox_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/free-robux-sans-hack_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/como-hackear-cualquier-cuenta-de-roblox_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/roblox-anti-cheat-video_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/free-robux-no-survey-easy_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/free-roblox-gamepasses_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/best-free-girls-roblox-outfits_GM431946152.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://ambasador.md/ckfinder/userfiles/files/coin-master-hack-android-root_GM406889139.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_002_off000031b9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x31B9	23208 bytes
SHA-256: `b81fd9f885659b01935ef9c2df2c18c643a0b5ceea8c9ad80a11382af04d5e58`
`font_01_sfnt_off0000662b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x662B	18404 bytes
SHA-256: `6ea43ab7228851601be35897fda2bac5ac1a9504793d1b77a03120ade39d3544`

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