PDF malware analysis — malicious · e2b01a156c5fbeb4

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 09:26:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 75d2b531cccac131bf22fa87d83c7abe SHA-1: 76b04accde8d90357ee106ba6da7a98061ab6295 SHA-256: e2b01a156c5fbeb456201b0825266fae88875a10e0e6c1e9fb91f9dbbd054b05

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/431946152/free-robux-working-game-hack PDF link annotation
- http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-earn_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-dll-hack-2021-november_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/hack-roblox-pc-download-no-clips_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/how-do-you-get-free-roblox-robux-in-roblox_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-free-builders-club-hack-2021_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/how-o-get-free-robux-new_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/roblox-demon_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-abs-on-roblox_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/games-on-roblox-that-give-you-free-robux_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/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- http://www.dallahgrp.com/uploaded_files/userfiles/files/minecraft-the-complete-handbook-collection_GM479516143.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_off00003152.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3152	22752 bytes
SHA-256: `cf8af307c0f5fb6f419e421ebbdbf742d5992abbb6137f63614c2b5ebe5e22b0`
`font_01_sfnt_off00006450.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6450	19204 bytes
SHA-256: `ce738487085ad599441484df9d90a1a143049edc5affa9a85a5d558c4f13480e`

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