PDF malware analysis — malicious · 6050a010940d1eb7

MALICIOUS

PDF

42.4 KB Created: 2021-05-19 12:30:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 698bd97f1d651a32b744e2690c18cd56 SHA-1: 7c7d61dcb035c05c994854b4924a2ed026b8c67b SHA-256: 6050a010940d1eb7770a7a863dc9eef82c0b35bbc605e7d25b0aebc4ad8b9fb1

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a call-to-action phrase, masquerading as a 'free Robux' generator. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to drive traffic to potentially malicious sites. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be luring users to external sites via deceptive 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/431946152/get-free-robux-2021-game-hack
- https://socialvalue.gr/images/free-online-games-like-minecraft_GM479516143.pdf
- https://socialvalue.gr/images/free-coin-and-spin-in-coin-master_GM406889139.pdf
- https://socialvalue.gr/images/coin-master-hack-app_GM406889139.pdf
- https://socialvalue.gr/images/how-to-get-roebucks-on-roblox_GM431946152.pdf
- https://socialvalue.gr/images/free-spins-coin-master_GM406889139.pdf
- https://socialvalue.gr/images/free-spins-generated-from-coin-master_GM406889139.pdf
- https://socialvalue.gr/images/coin-master-heaven-free-spins-today_GM406889139.pdf
- https://socialvalue.gr/images/free-100-robux_GM431946152.pdf
- https://socialvalue.gr/images/coin-master-free-spins-cash_GM406889139.pdf
- https://socialvalue.gr/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdf
- https://socialvalue.gr/images/free-coins-and-spins-for-coin-master_GM406889139.pdf
- https://socialvalue.gr/images/free-promo-codes-for-roblox-2021_GM431946152.pdf
- https://socialvalue.gr/images/minecraft-esp_GM479516143.pdf
- https://socialvalue.gr/images/coin-master-free-coins-and-spins-2021_GM406889139.pdf
- https://socialvalue.gr/images/how-do-you-hack-roblox_GM431946152.pdf
- https://socialvalue.gr/images/robux-generator_GM431946152.pdf
- https://socialvalue.gr/images/10k-likes-on-tiktok-free_GM835599320.pdf
- https://socialvalue.gr/images/coin-free-spin_GM406889139.pdf
- https://socialvalue.gr/images/roblox-hack-download-pc_GM431946152.pdf
- https://socialvalue.gr/images/coin-master-free-shield-link_GM406889139.pdf
- https://direct-link.net
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off0000483b.bin` `97eb25cd091bfe8f3cdcb336d90f4e7c6c87b9e6210bab9b4d9dcb1ab76c16ba`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x483B	25572 bytes
`font_01_sfnt_off00008252.bin` `6fe0ff66a16b6ee6dc50657e9361d5c62c74e6da0263e26ac7f67f588141101f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8252	18520 bytes

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