PDF malware analysis — malicious · c094ad458c1bfd7f

MALICIOUS

PDF

47.7 KB Created: 2020-08-29 10:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 43b8349d34d7492ac75691e1088cae67 SHA-1: d65cbb34d508929633559f65d0d38472669073e2 SHA-256: c094ad458c1bfd7f079bed007df5a6fb690287ffe1b749d5bd2b3d5e93ab7469

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a lure related to invoices or payments, encouraging the user to click a link. This link, 'https://ttraff.ru/wix?keyword=determine+which+of+the+following+transactions+may+require+adjustments', is flagged as a malicious redirector. The document also contains a large number of external PDF links, characteristic of SEO link farms, which can be used to obscure malicious activity or distribute further 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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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=determine+which+of+the+following+transactions+may+require+adjustments
- https://cdn.shopify.com/s/files/1/0437/5835/4593/files/the_24100_startup_wiki.pdf
- https://cdn.shopify.com/s/files/1/0437/4547/6757/files/neoliberalismo_caracteristicas.pdf
- https://cdn.shopify.com/s/files/1/0428/6690/1148/files/vurizo.pdf
- https://cdn.shopify.com/s/files/1/0438/0747/3821/files/finite_automata_theory_and_formal_languages.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/fivovonej.pdf
- https://cdn.shopify.com/s/files/1/0434/3191/9765/files/5777391503.pdf
- https://cdn.shopify.com/s/files/1/0439/0970/9976/files/wobugagekuliluvadenepab.pdf
- https://static.usrfiles.com/ugd/b8c837_7de014100b8241b9abae2cccd0627259.pdf
- https://static.usrfiles.com/ugd/b8c837_2699747050b748e7ad80b161806cd366.pdf
- https://static.usrfiles.com/ugd/b8c837_bdacf10884604719b5fe5f97e6c3203c.pdf
- https://static.usrfiles.com/ugd/b8c837_2f37ad85f8bb4804a2d9f90703fdbead.pdf
- https://static.usrfiles.com/ugd/b8c837_a52dcec19ad449e08cce8e75e85e1561.pdf
- https://static.usrfiles.com/ugd/b8c837_8c369762975a41ddad84b8131cc23851.pdf
- https://static.usrfiles.com/ugd/b8c837_597443141cdd4dd08befe21a0b7ad014.pdf
- https://static.usrfiles.com/ugd/b8c837_497dc99242c144dbba8b873bab2c1a97.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/
- https://cdn.shopify.com/s/files/1/0437/454

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007a50.bin` `ca89c280446a3a648b23f94e9c4d5adbcb2e99617ff5869b2b2a7cde16a96f39`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A50	5832 bytes
`font_01_sfnt_off00008e09.bin` `ae9578d5ee660bf2b0bd84f1fe6f9a82a4a8085bcfce95b22fb0dd0a6da5b538`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E09	10244 bytes

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