PDF malware analysis — malicious · 4e71afe7b4adea21

MALICIOUS

PDF

51.7 KB Created: 2020-08-14 01:41:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ad26fc1d43a73af82de9370d923b89c2 SHA-1: 2ff1eeb59b51ee7e239cbd48e0da2f73cf6f32ef SHA-256: 4e71afe7b4adea210981b4608cdc3bce41edd4303d6a91f67dc233fae96d73bd

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and heuristics indicate it contains a malicious redirector link and a large number of external links to other PDFs hosted on Shopify. The document body contains garbled text but includes the URL that triggered the malicious redirector heuristic. The primary attack pattern appears to be a link farm designed to lure users to malicious infrastructure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=informe+previo+amparo+indirecto+ejemplo
- http://files.capstonetherapycenters.com/uploads/1/3/0/8/130874328/b38798a2a7.pdf
- http://files.cninc.org/uploads/1/3/2/7/132740479/5324237.pdf
- http://sitono.faithbaptiststacy.org/uploads/1/3/0/7/130775374/jukanogufisamitumog.pdf
- http://kazuf.arc-sf.com/uploads/1/3/1/3/131379296/4927828.pdf
- https://cdn.shopify.com/s/files/1/0430/8025/3593/files/big_poppa_sample.pdf
- https://cdn.shopify.com/s/files/1/0427/9051/8940/files/23310414560.pdf
- https://cdn.shopify.com/s/files/1/0431/8271/9127/files/bidavenosolar.pdf
- https://cdn.shopify.com/s/files/1/0430/9729/2967/files/effective_communication_definition.pdf
- https://cdn.shopify.com/s/files/1/0433/8650/3326/files/kozuza.pdf
- https://cdn.shopify.com/s/files/1/0436/0149/4179/files/63811752611.pdf
- https://cdn.shopify.com/s/files/1/0437/8443/7922/files/cfa_ethics_curriculum.pdf
- https://cdn.shopify.com/s/files/1/0432/2564/5211/files/37523118968.pdf
- https://cdn.shopify.com/s/files/1/0429/6366/5055/files/39997563234.pdf
- https://cdn.shopify.com/s/files/1/0431/6348/4315/files/tolewavipuzinojitedunaf.pdf
- https://cdn.shopify.com/s/files/1/0435/8035/8811/files/xulanabigizujejasoreb.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/1/0431/6348/4315/files/tolewavipuz

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ba8.bin` `b4b565f08ab3ce6efeed2f53a2287f3970cfab7e53d5a0415dc8e0052a3fe765`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BA8	4984 bytes
`font_01_sfnt_off00008c80.bin` `e5ecad1e4d050cd940328b48a446bea0a1ee8a3ec4f09943de83fdec45bcd8f1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C80	11688 bytes
`font_02_sfnt_off0000b1d9.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB1D9	4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.