PDF malware analysis — malicious · ffc5e6b854e61616

MALICIOUS

PDF

45.6 KB Created: 2021-06-08 17:47:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 7e05783a23230f57e6e3c645e070a016 SHA-1: 5644a8787769b98a05837f8879294a1e81efe670 SHA-256: ffc5e6b854e616162c1a567a617cb61fb7a704ec26b9616520a10e148fd31b2d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document's content and heuristics indicate a social engineering attempt to trick the user into downloading further content. The presence of a fake CAPTCHA lure and numerous embedded URLs pointing to game-related hacks suggests a phishing or scamming operation. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/como-ser-hacker-en-roblox-con-el-movil-game-hack PDF link annotation
- http://unsere-beagles.de/images/como-instalar-hacks-roblox_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/earn-robux_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
- http://unsere-beagles.de/images/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- http://unsere-beagles.de/images/get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://unsere-beagles.de/images/free-robux-download_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://unsere-beagles.de/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- http://unsere-beagles.de/images/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://unsere-beagles.de/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
- http://unsere-beagles.de/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- http://unsere-beagles.de/images/free-tiktok-accounts_GM835599320.pdfIn PDF document text
- http://unsere-beagles.de/images/free-robux-app_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/free-robux-website_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://unsere-beagles.de/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
- http://unsere-beagles.de/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
- http://unsere-beagles.de/images/www-claim-gg-to-earn-free-robux_GM431946152.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_004_off00004dd3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DD3	28604 bytes
SHA-256: `d6c71ae19a884a967289da7db54e8529cc0c90625d23170f7c7588e2d00f27e6`
`font_01_sfnt_off00008e41.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E41	18872 bytes
SHA-256: `4fab6a6b89409b176e6a4f27f14a5f272552cec9a02c9a040769e8c9f1e2ab79`

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