PDF malware analysis — malicious · af182c0f1087ea44

MALICIOUS

PDF

42.4 KB Created: 2020-08-31 03:05:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 57ce9ea5ac7a270207a2ae33d7312390 SHA-1: 782d6dc1ae91bc4a341f7e1ec19312bbd59be2a2 SHA-256: af182c0f1087ea441a0de3f586e0ea817779c153fd8588ccb8a6fc8abf264da2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'free videos unblocked' and includes the malicious URL, suggesting a lure to a malicious site. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the link's malicious nature.

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.ru/wix?keyword=free+videos+unblocked
- https://static.usrfiles.com/ugd/b8c837_274da813579f432e9db73af3b685073c.pdf
- https://static.usrfiles.com/ugd/b8c837_48451f4ba34f41afbb27b13978a82b50.pdf
- https://static.usrfiles.com/ugd/4c1554_23048aa13451451abeb576f5eaa57661.pdf
- https://static.usrfiles.com/ugd/b8c837_3a9ae132204e4e5d83e4038aca1f278f.pdf
- https://static.usrfiles.com/ugd/b8c837_0855aecdad9f4b0aa0a1147d93c609aa.pdf
- https://static.usrfiles.com/ugd/d5d855_2f9ab6b411ef477fa97f8497f052466c.pdf
- https://static.usrfiles.com/ugd/fef806_af31b37a84844daaaa2d2b27034bc91e.pdf
- https://static.usrfiles.com/ugd/23b571_7ccb9c0dd9b94841a15f631e5b0efaff.pdf
- https://static.usrfiles.com/ugd/0d2908_c597755b12894eb8a10ab34c63b7201f.pdf
- https://static.usrfiles.com/ugd/b8c837_83436729d6a443aeac63060c6f9c6c93.pdf
- https://static.usrfiles.com/ugd/d01287_83905370c22942b683054feaa7031818.pdf
- https://static.usrfiles.com/ugd/4d935e_ace881226e3b43d5ada482148cd28c8b.pdf
- https://static.usrfiles.com/ugd/7a11b0_3a3c528f38e44f4b8925ea2c8879c9ec.pdf
- https://static.usrfiles.com/ugd/83b1b3_8951efb2723a4cdcb716204a893d4f46.pdf
- https://static.usrfiles.com/ugd/b8c837_3817d52ff11649bc92c5abae18723297.pdf
- https://static.usrfiles.com/ugd/05900a_3948ed7e1d6642a592f3713a03581c0d.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_off00005a66.bin` `f048eb0bfda86c0cb141b69eefc2be983e203a45b440ca47211afeb3ee416e66`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5A66	4744 bytes
`font_01_sfnt_off00006a8a.bin` `97314434daa10992c7099240da74581cf087dbf5a3491028567c9df4881f3958`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A8A	10596 bytes
`font_02_sfnt_off00008eb3.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EB3	4324 bytes

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