PDF malware analysis — malicious · 2ca16f4d568643da

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 09:38:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 0c03295d9f3dd66f582a361d27bc6137 SHA-1: 42e167f5c54da584c23896129ca7e7c4803c3d6e SHA-256: 2ca16f4d568643daa7813fcbe771f97730f55e0ccf1ca7187994a39a37d5729b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a "free generator / game hack" website, indicating a lure for users to visit potentially malicious or scam pages. The presence of multiple redirector links and the ML classifier's high confidence score support this assessment. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or scam campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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.online/app/406889139/freespinandcoin-game-hack In PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/offers-for-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-tiktok-hands-free_GM835599320.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/win-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-without-paying_GM431946152.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_004_off0000577d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x577D	26120 bytes
SHA-256: `905e41601fcbd08e8f3d6f0d49c7c98ad6e325473578369d71eeb8a12d1813c2`
`font_01_sfnt_off0000936a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x936A	17956 bytes
SHA-256: `1c693cd3c749c7deb88a93ce437f6f23953c7e7e8560ccdde2498ee9463f8dc4`

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