PDF malware analysis — malicious · c5967da380ab31c0

MALICIOUS

PDF

42.5 KB Created: 2021-05-19 07:39:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 5f83c82ceeccc844e1a3a575c4f1f436 SHA-1: 7675c5a0e85127ab09b87a3d54b19ed24bd9116b SHA-256: c5967da380ab31c0b47da74c0d5faf2e8dc83f01b59610885844d6655800bb79

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA or human verification prompt to trick the user into clicking a link, which is a common social engineering tactic. The embedded URL points to a resource related to game hacks, further supporting the lure. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/1094591345/pokemon-go-free-and-defit-game-hack PDF link annotation
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/minecraft-cheat-client_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-robux-offers_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/what-tiktok-free-views-without-verification_GM835599320.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-hack-2021-apk_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
`stream_003_off00004bf6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BF6	24476 bytes
SHA-256: `d8e010f221366df4a0b21ea5e1565b254adb8e63399b164933aa685a7f3f3401`
`font_01_sfnt_off000083b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83B2	18408 bytes
SHA-256: `4bbd8293be9ff32bc2eb65b4f41832757122cc9b5008e62b7b19cac44f329334`

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