PDF malware analysis — malicious · 0c6b5443a9e06e2d

MALICIOUS

PDF

36.7 KB Created: 2021-06-19 00:59:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25

MD5: bab9d73fdd04f92a04169548ce32e8f6 SHA-1: cd434fa8537967bf32102738c852948736ad7ed4 SHA-256: 0c6b5443a9e06e2dc8a390d47a0aafefd667624cc189facbff7b846ed2c17419

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document is designed as a lure, using keywords related to game hacks and free in-game currency to entice users. It contains numerous links, including a primary link to a malicious redirector at http://netcdn.co/app/431946152/how-to-hack-fly-in-roblox-pet-ranch-simulater-game-hack. The document's structure and embedded links strongly suggest it is part of a phishing or scam campaign aimed at driving traffic to potentially malicious sites. No scripts were extracted, but the PDF's nature points to a social engineering attack.

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.co/app/431946152/how-to-hack-fly-in-roblox-pet-ranch-simulater-game-hack In PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/is-there-any-free-ways-of-getting-robux_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/free-roblox-crown_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/free-robux-com-today_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/knife-server-roblox-hack-script-pastebin_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/how-to-make-your-own-robux-hack_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/free-robux-no-verification-no-details_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/roblox-veil-hack-update_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/free-robux-100-real-no-fake_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/cheats-for-roblox-deathrun_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/how-to-get-free-faces-from-events-roblox_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/free-secret-roblox-name-pass-hack_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/roblox-free-robux-site-greenlegocats_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/how-to-cheat-money-on-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/my-roblox-account-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/cbr-free-roblox_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/how-do-you-speed-hack-in-roblox_GM431946152.pdfIn PDF document text
- https://www.carela-group.com/wp-content/uploads/fsqm-files/free-roblox-accounts-obc-lifetime_GM431946152.pdfIn PDF document text
- https://www.roblox.com/.IIn 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_off000036b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x36B6	22384 bytes
SHA-256: `ab6d1c58b92212ca29627172c5d1cd20d3b5c04a68ff6fc15b3d408dc9987478`
`font_01_sfnt_off00006855.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6855	19924 bytes
SHA-256: `da2b5fe52f7618c1bdc51ab5c7fb0d69ad098d1e3a8672c6844d8e613c93f7c7`

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