PDF malware analysis — malicious · e2344d12070aac9c

MALICIOUS

PDF

36.5 KB Created: 2020-08-16 18:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4e15c0fa6b3352398ba997ef44ce4d61 SHA-1: 2544d6941aefbf5c7214dacdef79479a6668327f SHA-256: e2344d12070aac9c7a27cb880ea85fc27e2f58a419ee82e00aae36bcd490baa2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The primary malicious URL is https://ttraff.com/pify?keyword=sophos+client+authentication+agent+windows+10, which is likely used to redirect the user to a further malicious destination. The document body contains obfuscated text and references to software updates, suggesting a lure to trick users into clicking the malicious link.

Heuristics 3

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.
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=sophos+client+authentication+agent+windows+10
- http://files.darrellbissing.com/uploads/1/3/2/8/132814073/notujut.pdf
- http://myhelpdesk.store/uploads/1/3/1/6/131637830/bunafunifagobi.pdf
- http://files.theyogatreegardner.com/uploads/1/3/0/8/130813111/9012800.pdf
- http://jawimip.themaximumgamer.com/uploads/1/3/1/4/131406436/tejova-vonon.pdf
- http://files.johnlalla.com/uploads/1/3/1/4/131453393/nefuxaxikozodiguza.pdf
- https://cdn.shopify.com/s/files/1/0431/3153/5524/files/convert_to_word_android_free.pdf
- https://cdn.shopify.com/s/files/1/0439/4090/5128/files/tecnologias_de_la_informacion_y_comunicacion_1.pdf
- https://cdn.shopify.com/s/files/1/0431/6259/9585/files/tizepu.pdf
- https://cdn.shopify.com/s/files/1/0431/4670/7104/files/belly_up_book.pdf
- https://cdn.shopify.com/s/files/1/0427/7505/2454/files/97984092692.pdf
- https://cdn.shopify.com/s/files/1/0431/5345/7320/files/vokezenazunozegi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/medidebororun.pdf
- https://cdn.shopify.com/s/files/1/0436/9452/2518/files/bewokazizolom.pdf
- https://cdn.shopify.com/s/files/1/0431/1246/4535/files/fikatunesuwabefupalesa.pdf
- https://cdn.shopify.com/s/files/1/0438/7468/0987/files/dream_dictionary.pdf
- https://cdn.shopify.com/s/files/1/0434/4266/7676/files/40494737130.pdf
- https://cdn.shopify.com/s/files/1/0448/3697/8849/files/zet_bus_119.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005026.bin` `251e86ac2c2f82d0ea78f50d3860ef36d4c0c8eb71672149b09b969a93f677db`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5026	5628 bytes
`font_01_sfnt_off0000635b.bin` `2d0b1d8afe02575265055369f7e1cdb423061432758c1ca960c65ef280db7592`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x635B	9704 bytes

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