PDF malware analysis — malicious · a0a227c6ca85f823

MALICIOUS

PDF

44.8 KB Created: 2020-09-05 12:50:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6f58e672672e44f88b2340238d0139c8 SHA-1: 4b3937ddf7710374118c3502ac7080659856a724 SHA-256: a0a227c6ca85f823df10889c297795d9067cd0bf96a68dbf76f1bb72650075e6

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=4th+grade+science+questions+and+answers'. This indicates an attempt to redirect the user to a potentially harmful site. The document body, though heavily obfuscated, also contains this URL and numerous other PDF links, suggesting a link farm or redirection strategy. No scripts were extracted from this sample.

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.me/wix?keyword=4th+grade+science+questions+and+answers
- https://static.usrfiles.com/ugd/e3ff21_f666dba01d63479c98a21992b8208024.pdf
- https://static.usrfiles.com/ugd/aec2ea_19322a6806504d029ad33e6802500d37.pdf
- https://static.usrfiles.com/ugd/b8c837_b3298a38d1344a948ab5f66ce293a1b8.pdf
- https://static.usrfiles.com/ugd/868b90_99be5517e6464cd49538f40aeba56d14.pdf
- https://static.usrfiles.com/ugd/f46427_ee10c59db2f644a4b9fa9af40d187242.pdf
- https://static.usrfiles.com/ugd/29c71c_865754fd05af41bf8718f58251020579.pdf
- https://static.usrfiles.com/ugd/9d869b_a6712ef56b554354b252ccccd8507ea2.pdf
- https://static.usrfiles.com/ugd/b5973a_586e650f9dae4d1a84097cafc97a4e19.pdf
- https://static.usrfiles.com/ugd/ca300b_33b5b9781eec42e2a8749d8853e342e6.pdf
- https://cdn.shopify.com/s/files/1/0438/7323/9195/files/girlfriends_guide_to_divorce_will_actor_change.pdf
- https://cdn.shopify.com/s/files/1/0432/6077/2510/files/mutarozumivozusekurosu.pdf
- https://cdn.shopify.com/s/files/1/0429/2696/4903/files/2182180029.pdf
- https://cdn.shopify.com/s/files/1/0428/7404/4579/files/33390079883.pdf
- https://cdn.shopify.com/s/files/1/0439/4326/4411/files/38746011326.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexivopagutufaxusezonav.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_off0000621a.bin` `f746e8faffe7915ea70fe20ab0a1116989bf510e83eafdc0badf584cfc37bfab`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x621A	5380 bytes
`font_01_sfnt_off00007468.bin` `89981c10e0bf440d039b8a333cc311ce6817e827d6891e01676ea7cb12b156ce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7468	3968 bytes
`font_02_sfnt_off00008308.bin` `f961975b86f9d2ef770f32ada22cda1827051624860ea6f271e422c381a442c3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8308	10288 bytes

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