PDF malware analysis — malicious · f35bef2f2cceb5dc

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 09:31:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 3f131673dbb04ab35ddd4fd0a66b9323 SHA-1: c9ece19c934cb4ea83904cd73b5d802785a8256a SHA-256: f35bef2f2cceb5dc64ba2754e6cf1d4dad0679777864a3e42ed5c6acb68bb660

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to entice users. It contains numerous links, including a primary redirector at http://netcdn.tw/app/431946152/how-you-get-free-robux-game-hack, and a large number of links to SEO-optimized PDF files hosted on what appears to be a compromised academic domain. The document's structure and content strongly suggest a phishing or scam campaign aimed at driving traffic to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/how-you-get-free-robux-game-hack In PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/hack-para-roblox-kick-off_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/dll-hacks-for-roblox_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-roblox-royale-high-diamonds_GM431946152.pdfIn PDF document text
- http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-dragon-ball-ragw-hack_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
`font_00_sfnt_off00002ebc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EBC	21820 bytes
SHA-256: `74cc5079584cabb0c6f11e1b660a9fcf5263254f12113f310796e41c71042b1d`
`font_01_sfnt_off00005e74.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E74	19144 bytes
SHA-256: `347a02abbc70d9a51f290361347438ae6cbd927e0a0fbf4b37ccbc96466cb725`

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