PDF malware analysis — malicious · 1b13ee33fa30a485

MALICIOUS

PDF

46.3 KB Created: 2021-05-11 19:06:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 7ac834947a012c1b53d94085d2df351c SHA-1: 72a7fff99472181cd3d36079fb18b1ad286dd2fa SHA-256: 1b13ee33fa30a48557b75671a36076a4e1ff4d08b749ac03d1a1e0a5021ee932

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. 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 0.9278

Heuristics 5

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.
Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/free-robux-no-download-game-hack.
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.xyz/app/431946152/free-robux-no-download-game-hack PDF link annotation
- https://www.brightwake.co.uk/uploads/files/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/game-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/coin-master-fan-page_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/minecraft-free-install_GM479516143.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/free-roblox-codes_GM431946152.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/roblox-script-hack_GM431946152.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- https://www.brightwake.co.uk/uploads/files/files/coin-master-hack-apk-35-13_GM406889139.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_003_off00004ca7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4CA7	25220 bytes
SHA-256: `9025f228425397def8411923ae17c85da18beb96bf6f8c7d9a47669a11dd066c`
`font_01_sfnt_off0000867c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x867C	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off0000908c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x908C	18824 bytes
SHA-256: `a83584a15d83770571e134086905248a9fe783ccc3b424d06d308178a7ec7f42`

Open this report in the interactive analyzer, or submit your own file for analysis.