PDF malware analysis — malicious · cbbe384c41da8a53

MALICIOUS

PDF

45.5 KB Created: 2020-07-31 07:33:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8f2640134eec16a9ba8918ebbef76ef7 SHA-1: 80f76b45fe9fb4a008d6a3d76f8749bcd6c9f1a1 SHA-256: cbbe384c41da8a531e5e8fcf7480aed59f33ba9dcee53201588123a7f9e676e2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. One of the primary links, 'https://ttraff.ru/pify?keyword=breakthrough+basketball+rebounding+pdf', is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'breakthrough basketball rebounding pdf', indicating an attempt to disguise malicious content as a useful resource. The presence of a link farm further supports the malicious intent.

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=breakthrough+basketball+rebounding+pdf
- http://files.wildlilacdesigns.shop/uploads/1/3/0/8/130814535/rorasedemirum_morez_tudabapelikowi_jamomefafefil.pdf
- http://files.afropanamanian.com/uploads/1/3/1/6/131606349/e7c52b788f10ed9.pdf
- http://files.brazilian-samba.com/uploads/1/3/1/4/131453536/4033033.pdf
- http://files.wildlilacdesigns.shop/uploads/1
- https://cdn.shopify.com/s/files/1/0431/5696/3479/files/64545740748.pdf
- https://cdn.shopify.com/s/files/1/0430/3798/2869/files/xomoviwa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdf
- https://cdn.shopify.com/s/files/1/0437/8846/8376/files/71583386728.pdf
- https://cdn.shopify.com/s/files/1/0428/2574/4547/files/womuxolo.pdf
- https://cdn.shopify.com/s/files/1/0432/4704/2728/files/petobikejogirun.pdf
- https://cdn.shopify.com/s/files/1/0434/6265/6165/files/juninuzibixi.pdf
- https://cdn.shopify.com/s/files/1/0433/7133/1734/files/jusavik.pdf
- https://cdn.shopify.com/s/files/1/0431/8858/4605/files/xapejivitumomulapekawus.pdf
- https://cdn.shopify.com/s/files/1/0432/6440/9764/files/56735251570.pdf
- https://cdn.shopify.com/s/files/1/0433/3892/4181/files/79414364675.pdf
- https://cdn.shopify.com/s/files/1/0427/7927/9527/files/zedabuxozusavudoxa.pdf
- https://cdn.shopify.com/s/files/1/0430/3942/4669/files/nukivikutenujit.pdf
- https://cdn.shopify.com/s/files/1/0434/5122/0120/files/limevotuvawedodefizebel.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_off000072dc.bin` `91eaeeebcd33edff242666c822a6880eaf3de8de2be82f728328abaa392b30d6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72DC	5440 bytes
`font_01_sfnt_off0000854a.bin` `6e812109e829bc7efb7af1ffce43e717b3cd56635efefe0129a108d388ef4d4a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x854A	10328 bytes

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