PDF malware analysis — malicious · c3e138aaf549483e

MALICIOUS

PDF

46.7 KB Created: 2021-05-11 05:40:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20

MD5: cad03dc75625f7de0afbec131d976874 SHA-1: d18a607e0738b189623dfa8967bbbe51536a5721 SHA-256: c3e138aaf549483e5f912a443b9a93d59befb95143bcb35ccd13b1c7210489f9

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links to external resources, including a known malicious redirector at 'https://netcdn.xyz/app/431946152/https-rbx-place-rewards-game-hack'. The document body and heuristic firings indicate a lure for game hacks and free spins, suggesting a phishing or malware distribution attempt. The presence of a large number of linked PDFs also points to SEO manipulation for traffic generation.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.xyz/app/431946152/https-rbx-place-rewards-game-hack In PDF document text
- http://www.fabbrotorino.eu/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/roblox-game-free-download_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/free-robux-safe_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
- http://www.fabbrotorino.eu/images/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
- https://robuxhaxs.comIn 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_off0000475f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x475F	29820 bytes
SHA-256: `52836bafb809f69de26308b98d0443c62167f6b341419b044003a96e48fa25c7`
`font_01_sfnt_off00008901.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8901	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off000092eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92EB	18640 bytes
SHA-256: `adbb92b042532d7f987745dbbe30e528a9aa5ccea6c943b93cd0d8aa572e92fd`

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