PDF malware analysis — malicious · 20ad7e92361db566

MALICIOUS

PDF

45.1 KB Created: 2020-08-24 05:42:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 520cd24d59a539422822991dfab7e9d7 SHA-1: 1bd0aa9fa9c192f1f14f2fb98bfabbfc675fd6a8 SHA-256: 20ad7e92361db5660a0d2988682ffb08e487c8d478b0263d1528057d38bbe77d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to the presence of numerous embedded links. One critical heuristic firing indicates a link to a known malicious redirector at 'ttraff.com'. Another heuristic identified a large PDF link farm, with many links pointing to Shopify domains, though the primary redirector is the most concerning IOC. The document body contains garbled text but includes the malicious redirector URL and several other URLs hosted on Shopify and other domains, suggesting a link-based attack. 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.com/pify?keyword=slayer+raining+blood+guitar+pdf
- http://files.acenursingeducation.com/uploads/1/3/1/4/131406592/a7dcc.pdf
- http://files.lts3d.com/uploads/1/3/1/3/131398222/dadub.pdf
- https://cdn.shopify.com/s/files/1/0435/9235/1907/files/todaxatozasimefegod.pdf
- https://cdn.shopify.com/s/files/1/0427/6230/5702/files/vakosedugisuref.pdf
- https://cdn.shopify.com/s/files/1/0438/0911/2226/files/66521879771.pdf
- https://cdn.shopify.com/s/files/1/0432/1620/8036/files/gabuviwupaparebumesegosip.pdf
- https://cdn.shopify.com/s/files/1/0428/9822/7353/files/79327432303.pdf
- https://cdn.shopify.com/s/files/1/0440/8557/5845/files/mp4_to_frames.pdf
- https://cdn.shopify.com/s/files/1/0429/9587/5989/files/15793662354.pdf
- https://cdn.shopify.com/s/files/1/0434/2988/8161/files/53817356729.pdf
- https://cdn.shopify.com/s/files/1/0438/2041/7181/files/yard_machine_lawn_mowers_manual.pdf
- https://cdn.shopify.com/s/files/1/0427/5165/6102/files/dukitase.pdf
- https://cdn.shopify.com/s/files/1/0431/0731/9974/files/lesuvegutatakiz.pdf
- https://cdn.shopify.com/s/files/1/0434/5580/7654/files/megivanitosut.pdf
- https://cdn.shopify.com/s/files/1/0431/2019/7789/files/povinitolosiva.pdf
- https://cdn.shopify.com/s/files/1/0437/6517/0334/files/26339068798.pdf
- https://cdn.shopify.com/s/files/1/0432/2469/4942/files/barupulalalodiz.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_off00006560.bin` `1734bde1e0679e5aa124acdd05f60fe3c987683cf85629e387c927c6b7271cd9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6560	5376 bytes
`font_01_sfnt_off000077b1.bin` `d6781014a71981df00d6ac049066c60024d4b058e8e18be9856b1fc56dfb185d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77B1	15444 bytes

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