PDF malware analysis — malicious · 341baef11a6db3ef

MALICIOUS

PDF

35.8 KB Created: 2021-06-26 08:08:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 5ebbab506f0bb5945a9a4b4e127f7845 SHA-1: a596cf4d1e266cfa1c7506a591e6880ba87d3a61 SHA-256: 341baef11a6db3efdbe4ac441774e5c78698740bcb220faf2e1265e95f3e8c4f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and free items, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the heuristics indicate it's designed as a redirector for game-related scams. The primary URL identified is http://netcdn.co/app/431946152/roblox-rthro-packages-free-game-hack.

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.co/app/431946152/roblox-rthro-packages-free-game-hack PDF link annotation
- http://www.valenciamaids.com/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/how-to-get-wings-on-roblox-for-free_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-robux-gen_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/robux-hack-sin-descargar-nada_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/how-to-get-roblox-clothes-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-robux-picture_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/coin-master-hack-apk-download-latest-version_GM406889139.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-robux-scam_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-roblox-premium_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/free-robux-generator_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://www.valenciamaids.com/userfiles/files/coin-master-hack-no-survey-or-verification_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_off000032a6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x32A6	23148 bytes
SHA-256: `e833eddae353b341f38c2d1eb0fd389199a8c793ca3524e16347ffb21cbbd6a2`
`font_01_sfnt_off00006675.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6675	19244 bytes
SHA-256: `88bc241a8ab76e9709853d5f3c48e83364d57cce78b2615c7d07f1c2db891bfe`

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