PDF malware analysis — malicious · be8e7c7e515563f3

MALICIOUS

PDF

35.8 KB Created: 2021-07-01 22:54:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: dea05e7a62345274b696fc064d65d0cc SHA-1: c4cabf63a4acac519bfd8b668d71d7bec1ed6391 SHA-256: be8e7c7e515563f3daefd4fc2cafe4dc8d73591e6c91d99b6bfabe49f362a18e

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.co/app/431946152/top-best-free-stuff-on-roblox-2021-game-hack PDF link annotation
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-wild-west-guns-free-fe_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/inject-hack-roblox-game-code_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-fly-in-roblox-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-natural-disaster-survival-cheats_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/robux-free-2021_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-real-working_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/error-connecting-to-pipe-3-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/roblox-avatar-com_GM431946152.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/tiktok-free_GM835599320.pdfIn PDF document text
- https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-70-spin-link-today_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_off000032ce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32CE	22592 bytes
SHA-256: `6d6fbb5ccd0cbe50f1e598872351eb4f2b43308775cf965d8fd5ff6d62ddf35b`
`font_01_sfnt_off0000656b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x656B	19472 bytes
SHA-256: `edfbe04cd0de3d54764e184a7b4ca2f089a18d587342aea7d5162741285f00cf`

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