PDF malware analysis — malicious · 9671769b8d85fc19

MALICIOUS

PDF

49.6 KB Created: 2020-08-10 23:27:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 440a46701576977b855d024157cca142 SHA-1: 5ad1477aefbbe63bba596bc63d8466f6ae9ae618 SHA-256: 9671769b8d85fc19b501fc74eaccffb2452084439c437d0792f3d44adb46d27b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a mass external PDF link farm, suggesting a tactic to artificially inflate search engine rankings or distribute malicious content. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware delivery site.

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.cc/pify?keyword=theoretical+naval+architecture+pdf
- http://files.grantgarrisongolf.com/uploads/1/3/1/0/131070362/vunuzegifaz_pajoguxi_jolevutoxum_natilolojibox.pdf
- http://files.antlerbakingcompany.com/uploads/1/3/1/4/131482958/bavirowudizeguw.pdf
- http://files.searchlc.com/uploads/1/3/1/8/131856347/duxixa.pdf
- http://files.explorestanton.com/uploads/1/3/1/4/131453216/6741733.pdf
- https://cdn.shopify.com/s/files/1/0428/2220/5607/files/xifexuzubow.pdf
- https://cdn.shopify.com/s/files/1/0429/7054/6335/files/73272376863.pdf
- https://cdn.shopify.com/s/files/1/0433/8820/7254/files/86232976279.pdf
- https://cdn.shopify.com/s/files/1/0431/5706/1788/files/93198373975.pdf
- https://cdn.shopify.com/s/files/1/0433/6127/1959/files/66654371426.pdf
- https://cdn.shopify.com/s/files/1/0431/3320/6682/files/brosur_kabel_nym_supreme.pdf
- https://cdn.shopify.com/s/files/1/0436/9835/6392/files/14807706534.pdf
- https://cdn.shopify.com/s/files/1/0427/4061/3286/files/96504168154.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakisone.pdf
- https://cdn.shopify.com/s/files/1/0430/4489/6917/files/rv_comfort_zc_thermostat_manual.pdf
- https://cdn.shopify.com/s/files/1/0437/1460/9303/files/27012530038.pdf
- https://cdn.shopify.com/s/files/1/0431/5486/6333/files/468334496.pdf
- https://cdn.shopify.com/s/files/1/0427/9199/3500/files/91117629319.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000077ab.bin` `7a04e469f12978615dc62fb1091f4e06b7e9868ce1df4b2e62cd5fa2e7e7dbeb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77AB	4956 bytes
`font_01_sfnt_off00008881.bin` `9c1d7c0c03c33b3e1c5379de3944f83b93af1e8ef7d1d64172695ed1188359d6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8881	10136 bytes
`font_02_sfnt_off0000ab2c.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAB2C	4324 bytes

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