PDF malware analysis — malicious · 7a462e9802bc4ee9

MALICIOUS

PDF

41.3 KB Created: 2021-05-15 04:32:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 03ccb609d6f11727bb8e7556e937e476 SHA-1: 325bb26dc1413e0ca90024bf49f6b512daf2b770 SHA-256: 7a462e9802bc4ee996c5cfd2f42e2834239e0de2523cfab31dc6a7f689f4d52d

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains a large number of external links, many of which point to other PDF files, suggesting a link farm or redirection mechanism. The ML classifier also flagged this PDF as malicious. The presence of a download button lure further supports the malicious intent, likely to trick users into downloading or visiting malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

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.
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/406889139/cm-free-spins-game-hack
- http://e-onlinearchiv.de/images/robux-link_GM431946152.pdf
- http://e-onlinearchiv.de/images/how-to-get-free-spins-grom-coin-master_GM406889139.pdf
- http://e-onlinearchiv.de/images/free-robux-without-downloading-anything_GM431946152.pdf
- http://e-onlinearchiv.de/images/2021-free-spins-coin-master-link_GM406889139.pdf
- http://e-onlinearchiv.de/images/coin-master-hack-apk-iphone_GM406889139.pdf
- http://e-onlinearchiv.de/images/free-coin-master-spins-for-today_GM406889139.pdf
- http://e-onlinearchiv.de/images/coin-master-free-spins-hack-link_GM406889139.pdf
- http://e-onlinearchiv.de/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
- http://e-onlinearchiv.de/images/free-spins-october-28-2021-coin-master_GM406889139.pdf
- http://e-onlinearchiv.de/images/how-can-i-get-free-robux_GM431946152.pdf
- http://e-onlinearchiv.de/images/how-to-get-minecraft-pe-for-free_GM479516143.pdf
- http://e-onlinearchiv.de/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
- http://e-onlinearchiv.de/images/free-spins-coin-master-2021_GM406889139.pdf
- http://e-onlinearchiv.de/images/coin-master-free-spins-link-today_GM406889139.pdf
- http://e-onlinearchiv.de/images/i-want-free-robux_GM431946152.pdf
- http://e-onlinearchiv.de/images/daily-coin-master-link_GM406889139.pdf
- http://e-onlinearchiv.de/images/toolbox-premium-apk_GM479516143.pdf
- http://e-onlinearchiv.de/images/coin-master-golden-card-hack_GM406889139.pdf
- http://e-onlinearchiv.de/images/roblox-hack-download_GM431946152.pdf
- http://e-onlinearchiv.de/images/games-like-coin-master-for-free_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004869.bin` `3fd1ce8e1590e51ffbb5729dc0be21da60f74edae68d467605130938279b104c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4869	24692 bytes
`font_01_sfnt_off0000812c.bin` `c7edaacf3d8891068ee17a427980e4b8712b9880538c2e482dce739b11255869`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x812C	17672 bytes

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