PDF malware analysis — malicious · 87c2cb9e8cb3008c

MALICIOUS

PDF

35.5 KB Created: 2021-06-20 01:27:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 86b6c99edb46092fd80f3bf39dbbd628 SHA-1: 2f3c3a6c2a7ad956f3cb34e1b28b023b0c2c2987 SHA-256: 87c2cb9e8cb3008c6609cb0c2a1858afd0284199b3d930d672e2d368f5375896

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to lure users into clicking on what appear to be game hacks and generators for popular games like Roblox and Coin Master. The primary link directs to a known malicious redirector infrastructure, and the document body is filled with SEO-optimized links to other PDF files, suggesting a link farm designed for traffic generation or further malicious redirection. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful content.

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/hack-robar-cuentas-de-roblox-2021-akakaa-game-hack In PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-app-free-download_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-cheat-in-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/good-watchdogs-hacking-games-on-roblox_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/free-robux-so-sick-free_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/make-robux-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/are-pubg-uc-free_GM1330123889.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/robux-websites-2021_GM431946152.pdfIn PDF document text
- http://www.raneenmed.com/uploaded_files/userfiles/files/free-spins-coin-master-hack-2021_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
`font_00_sfnt_off000031b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31B8	22552 bytes
SHA-256: `deed497bebddd52fbe363146b3cefd59416c2488551db4af10802875e9b26273`
`font_01_sfnt_off0000643c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x643C	19472 bytes
SHA-256: `0aa51e1d947460b8911d0c188a5fb3e0473f40544d985db77695b905302f37c8`

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