PDF malware analysis — malicious · 6c0b1f2d99e5d71c

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 04:05:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: e9d516ee650ac1174fa600ca311c11b5 SHA-1: 5c0a628c406ad16ec5b6b49f66c0a1a679af024d SHA-256: 6c0b1f2d99e5d71c1dfed22df6891da8a8c30b02701fde49e6ba9ce508aa94e7

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous embedded links to external websites, many of which are structured as PDF link farms. The document body and extracted links suggest a lure for users seeking free game items or cheats for popular games like Minecraft and Roblox. The ML classifier strongly indicated maliciousness, and the presence of a link farm points to a campaign distributing potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/how-to-get-minecraft-for-free-on-chromebook-game-hack PDF link annotation
- https://vierabyragazze.com/upload/files/how-to-hack-into-others-peoples-acoount-on-roblox_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-for-roblox-cheats-and-guide-app_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/download-free-robux-hack-on-pc-for-free_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/rewards-roblox-com_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-bubble-gum-simulator-steal-hack_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-skin-free_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/robux-claimer_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/wurst-112_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-the-plaza-plane-free_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-base-raiders-hack-infinite-basebux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/attack-on-titan-downfall-roblox-play-free_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
`font_00_sfnt_off0000318b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x318B	21912 bytes
SHA-256: `642b18ba95ca0c333c25970da7f2b7b5fc26e2dbae78c400bf383038495800b9`
`font_01_sfnt_off000061bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61BF	18916 bytes
SHA-256: `a6c15671334e5340958c859e9ef76faa3bd94e6af761e25462b4f2cfb72507dc`

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