PDF malware analysis — malicious · dd620e7b8f38af7e

MALICIOUS

PDF

48.0 KB Created: 2021-05-17 23:34:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: e1c650e03a1816209136205fb84dfcda SHA-1: 0dd51076c2397256a3e9ffd2100e9cc82a4a4787 SHA-256: dd620e7b8f38af7ebe0a4c3dd57975b88e5a60503bf07cadae68dc81a10a3e06

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links, identified as a link farm, that redirect to websites offering game hacks and generators. The ML classifier also flagged this PDF as malicious. The primary lure appears to be the promise of free in-game items or cheats, which is a common social engineering tactic to drive traffic to potentially malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

Heuristics 5

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.
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 https://netcdn.xyz/app/479516143/toolbox-for-minecraft-pe-ios-game-hack PDF link annotation
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/clients-minecraft_GM479516143.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-robux-com-real_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- http://www.waelhamadehgallery.com/uploaded_files/userfiles/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004d83.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D83	29852 bytes
SHA-256: `1e051b1ebc69bcc5b67bf41cf60576e149dbf009fc0fbd7bf3a91ddbacf635e5`
`font_01_sfnt_off00008f7a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F7A	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off0000998a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x998A	18308 bytes
SHA-256: `dc3ccbb79e5b5e3c2e3f1df788125855a4eb2a90c1a23b445c8862bc1b3de69c`

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