PDF malware analysis — malicious · 4c2f1de9732abe05

MALICIOUS

PDF

56.6 KB Created: 2020-08-07 14:04:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6d3a9a89abf9acdc169f72abd713f441 SHA-1: 909b86ed673b31146f44b24d7df1a32db7a719c0 SHA-256: 4c2f1de9732abe054b58bf05eba68bdca9d56d3552948eaca9898a42890cbda1

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=oceanofpdf+site+down'. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify. This suggests a campaign to drive traffic to malicious infrastructure.

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/pify?keyword=oceanofpdf+site+down
- http://files.scienceadventureprogram.com/uploads/1/3/1/3/131380308/towaka.pdf
- http://files.northfloridacarpetcleaningsolutions.com/uploads/1/3/1/1/131164152/rutibojapozemaxa.pdf
- http://files.soflamsc.com/uploads/1/3/1/4/131453985/sukeriwinaxazixa.pdf
- https://cdn.shopify.com/s/files/1/0429/5150/8131/files/47054347204.pdf
- https://cdn.shopify.com/s/files/1/0435/1574/0312/files/zopozurikesusobuv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdf
- https://cdn.shopify.com/s/files/1/0437/6346/6391/files/49339756867.pdf
- https://cdn.shopify.com/s/files/1/0431/5181/8903/files/trasplante_autologo_de_medula_osea.pdf
- https://cdn.shopify.com/s/files/1/0432/3937/5012/files/rikeragupujiv.pdf
- https://cdn.shopify.com/s/files/1/0433/0350/1989/files/53780730953.pdf
- https://cdn.shopify.com/s/files/1/0432/2679/2100/files/58996605141.pdf
- https://cdn.shopify.com/s/files/1/0436/5575/7977/files/mirapobupitofonimob.pdf
- https://cdn.shopify.com/s/files/1/0427/6443/5612/files/18876400439.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000079d4.bin` `3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79D4	6440 bytes
`font_01_sfnt_off000089c8.bin` `9cc99d821ed3c1cdb66b646fbf566f37d5b13f6fc2346e3ae156b60256a133a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89C8	5140 bytes
`font_02_sfnt_off00009b72.bin` `c34fd8188e74260355ea17ee513545056b6d91b1056f0fa35b0f8e0c9b76b1cf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B72	10652 bytes
`font_03_sfnt_off0000c012.bin` `52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC012	16036 bytes

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