PDF malware analysis — malicious · d402c8990d37c92d

MALICIOUS

PDF

48.7 KB Created: 2020-08-30 09:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9872d716c21586af9f821d25ccd95220 SHA-1: b0a1fa8d6bf5c8559a9f8b2bbf2a2322fd61f302 SHA-256: d402c8990d37c92d1a5b2022b78c6ad6eda4b881cf7246e4d4e4089db3d6fa74

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a lure related to 'lg hidden menu unlock' and embeds a link to a known malicious redirector at 'https://ttraff.ru/wix?keyword=lg+hidden+menu+unlock'. Additionally, it features a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO poisoning or distribution. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may be intended to trick users into believing they need a password to access content, a common tactic for hiding malicious payloads.

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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=lg+hidden+menu+unlock
- https://cdn.shopify.com/s/files/1/0430/5072/9634/files/10895826845.pdf
- https://cdn.shopify.com/s/files/1/0437/9751/2354/files/l_argumentation_juridique_stefan_goltzberg.pdf
- https://cdn.shopify.com/s/files/1/0433/3282/9342/files/nosunaxijigojawabu.pdf
- https://cdn.shopify.com/s/files/1/0438/5826/4229/files/whatsapp_spy_tus_descargas_es.pdf
- https://static.usrfiles.com/ugd/b8c837_4d954e3e7ce14c37865a9b12ffd64b95.pdf
- https://static.usrfiles.com/ugd/b8c837_408e0eff55044fd68ccb7aff459136fc.pdf
- https://static.usrfiles.com/ugd/538d67_6ef2602126ba4cf693892a11b2c81b90.pdf
- https://static.usrfiles.com/ugd/b8c837_9ebb990a82c140de998cf1f85cacf811.pdf
- https://static.usrfiles.com/ugd/c7ef1a_5b888e7fc9f94d4cbbab0f86b8658562.pdf
- https://cdn.shopify.com/s/files/1/0439/3802/1544/files/gegidetexafirosolajakorul.pdf
- https://cdn.shopify.com/s/files/1/0436/6991/3753/files/tubenewalunosujibeni.pdf
- https://cdn.shopify.com/s/files/1/0439/2160/4763/files/texatabijuzoxemivogu.pdf
- https://static.usrfiles.com/ugd/b8c837_15b281b7a1174926accdf296b76d35f8.pdf
- https://static.usrfiles.com/ugd/ce14f3_9da0ab4298424105a4c08efcc30c42f2.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_off000081c1.bin` `11c1e076e7992dd554a6835eac205c44de2ba799c518c7eade21c60bd5ea1e2e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81C1	4872 bytes
`font_01_sfnt_off0000922c.bin` `07e88715c1125b82dab5935c14acee1d1810545ac541a34727d8b9dccc311208`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x922C	10700 bytes

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