PDF malware analysis — malicious · 21cc3ceab73a98af

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 11:29:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 6b444fa818f8288ec633b3f6b2a641b3 SHA-1: 78b8fb7c4f11a98ef5be177bd83fe80b0c268427 SHA-256: 21cc3ceab73a98af312b679d003b30ba7e0835d35cc025fe2bcc0b42df35977a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/406889139/coin-master-free-coins-link-blogspot-game-hack PDF link annotation
- http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/hack-para-counter-blox-roblox-offensive_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-adidas-clothes-roblox_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-safe_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-girl-avatar_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/sword-burst-2-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/pubg-uc-jazz-cash_GM1330123889.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/inspect-elements-robux-hack_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-robux-password_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/cross-site-scripting-free-robux_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-hacks-for-phantom-forces_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/pubg-uc-zarna_GM1330123889.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/blox-fun-info_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_off00003137.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3137	23268 bytes
SHA-256: `601b6e6f5ca4fc10149f487943556802e1c3af8bcb00cee1fe28abf315930dcb`
`font_01_sfnt_off000065cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65CF	18632 bytes
SHA-256: `d0d574b1662071f3403a16b1a6302b8c72ae4679adcfbefd57853cfc863fd1c5`

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