PDF malware analysis — malicious · d74a7ccdb7187cd9

MALICIOUS

PDF

49.0 KB Created: 2020-08-01 14:57:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 46b05d60913c8f655c93d4dee27c75ac SHA-1: c0e584f56c0c04998bb9b9f4e70d41489771a7e7 SHA-256: d74a7ccdb7187cd925526b781be79dff5a2bd116dbf4a6500f27833274344985

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One critical heuristic indicates these links point to known malicious redirector infrastructure, specifically 'https://ttraff.com/pify?keyword=pseudo+code+example'. The document body, though heavily obfuscated, also contains this URL and numerous other links to PDF files hosted on various domains, suggesting a coordinated effort to distribute malicious content or manipulate search engine results. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=pseudo+code+example
- http://files.statebirdtogo.com/uploads/1/3/0/7/130775108/80bb7.pdf
- http://files.broadwaysilkens.com/uploads/1/3/1/8/131871535/392921b79b5.pdf
- http://files.derekcovingtonsmith.com/uploads/1/3/1/6/131637498/6e43dbf5ad10.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/24390977367.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lojuxefututa.pdf
- https://cdn.shopify.com/s/files/1/0429/0812/3303/files/gopurevemi.pdf
- https://cdn.shopify.com/s/files/1/0429/9715/3943/files/tazusokirezupifigupuzefi.pdf
- https://cdn.shopify.com/s/files/1/0433/4583/8234/files/67335798988.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52665001447.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/92602194779.pdf
- https://cdn.shopify.com/s/files/1/0427/9291/1007/files/dibupibunulefuxuxibevup.pdf
- https://cdn.shopify.com/s/files/1/0428/8462/8633/files/97344207714.pdf
- https://cdn.shopify.com/s/files/1/0431/5689/7947/files/19395262282.pdf
- https://cdn.shopify.com/s/files/1/0427/4218/6150/files/39454659722.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006c71.bin` `afbed6e384c0beb8687639a3ee6b9c30b736741e4f25a8a4a656da75b6410131`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C71	5192 bytes
`font_01_sfnt_off00007e0f.bin` `e73f030138c2fac0edcf4f539107f3b68ef1806cf78e62087467566cca068d1d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E0F	10288 bytes
`font_02_sfnt_off0000a192.bin` `a901af60c43a3d1d2c73faf17f59d23bf7f00f3eb95c840d7b65a6fc22ad04a4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA192	16292 bytes

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