PDF malware analysis — malicious · 5d34734516e52c23

MALICIOUS

PDF

58.1 KB Created: 2021-06-03 07:36:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: b53b9f4e17844e5ed8c1b35bdfa84073 SHA-1: abd8ad068b02779dcf4a7f41a69e489965143aca SHA-256: 5d34734516e52c23febf838f9f71dbfcea110473b8d7b020eaef89c2d4f474ec

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 0.9612

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 https://netcdn.online/app/406889139/free-spins-coin-master-links-blogspot-game-hack PDF link annotation
- http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-bonus_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-village-4_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/free-robux-reddit_GM431946152.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-ad_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- http://www.amtqatar.com/uploaded_files/userfiles/files/scary-larry-roblox_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005468.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5468	26216 bytes
SHA-256: `f4d0b3007a5481d36693f7f2c34e2f6979eed53178f3f2790ce0d658c404f07f`
`font_01_sfnt_off0000914a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x914A	3632 bytes
SHA-256: `d51c36b3a210e90c2219cd40330f662aad44b26d54c58152b3438f2c58b9e20f`
`font_02_sfnt_off00009de9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9DE9	7960 bytes
SHA-256: `cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2`
`font_03_sfnt_off0000b10e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB10E	18632 bytes
SHA-256: `e19cb03e4db5dc0ff2825ab1b6cd29120edbbac4e5fd870bab1836bcb421f615`
`font_04_sfnt_off0000d411.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD411	4272 bytes
SHA-256: `fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0`

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