PDF malware analysis — malicious · 4b12ba453a3464e9

MALICIOUS

PDF

56.4 KB Created: 2020-08-16 19:14:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4e0dc964b7d805a21be93cdac79af544 SHA-1: 8b995d055ec511b9e557747c8fbee8e6df56fc31 SHA-256: 4b12ba453a3464e918d58e907f05149bc316335cafa93d912a2ccf93305ba40d

160 Risk Score

Malware Insights

MITRE ATT&CK

T1204.001 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a popular anime song, aiming to trick users into clicking it. It also employs a social engineering lure, instructing the user to install a browser extension or update to view content, which is a common tactic for credential theft or malware installation. The document body, though heavily obfuscated, contains the malicious URL and numerous other PDF links, suggesting a link farm or redirection strategy.

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE

Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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://ttraff.com/pify?keyword=blue+bird+naruto+opening+song
- http://banuse.tortugagraphix.com/uploads/1/3/1/0/131070450/kobigo.pdf
- http://ridab.balanceacu.com/uploads/1/3/0/9/130970009/4602098.pdf
- http://files.badgerridgeind.com/uploads/1/3/2/7/132740352/1229142.pdf
- https://cdn.shopify.com/s/files/1/0428/8770/8825/files/bloomberg_businessweek.pdf
- https://cdn.shopify.com/s/files/1/0434/6219/7400/files/5912872240.pdf
- https://cdn.shopify.com/s/files/1/0439/1793/4747/files/34140113392.pdf
- https://cdn.shopify.com/s/files/1/0429/4633/0791/files/54826455536.pdf
- https://cdn.shopify.com/s/files/1/0439/3412/2139/files/android_developer_user_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/1403/7397/files/jafajelixafena.pdf
- https://cdn.shopify.com/s/files/1/0433/4927/8875/files/being_alive_company_sheet_music_free.pdf
- https://cdn.shopify.com/s/files/1/0431/6905/4886/files/16388863235.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006002.bin` `4d6e8985abae6172cf5ea5d1417acd3abed58503071c696d42ab7af14da8c21a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6002	16088 bytes
`font_01_sfnt_off0000935c.bin` `d4654ef97e28c5a39a3565f129ce7daf5fb8892941eb14bdb37ce68cd28b05e2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x935C	5196 bytes
`font_02_sfnt_off0000a507.bin` `813dc4c2728c5f5101cbaabd44321300faea694cdab16951ea6710c3e21e2c11`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA507	9752 bytes
`font_03_sfnt_off0000c674.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC674	4324 bytes

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