PDF malware analysis — malicious · 7ac8f098de546b0e

MALICIOUS

PDF

41.5 KB Created: 2020-08-20 03:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 009b9426c0de1d5691f58acf9d1d19ce SHA-1: d253c9a71bc4874a099fb047e8456c2097cf2e75 SHA-256: 7ac8f098de546b0eb874cfb50aa8ba64a0970b9f9d3b0d11814754fbf2fcbada

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. The presence of numerous external links, many hosted on 'cdn.shopify.com', suggests a link farm or SEO poisoning tactic to attract victims. The ML classifier also strongly indicated maliciousness.

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=exponent+worksheets+for+7th+grade
- http://files.beatrice77livestocksales.com/uploads/1/3/1/4/131407035/sudapiwalera-papufuwika-timuzag-xuwujez.pdf
- http://files.edwinmclachlan.com/uploads/1/3/0/7/130739525/3dfbca03b6ca3a.pdf
- http://files.nysdentalfoundation.org/uploads/1/3/1/1/131164027/88d37d8dc7.pdf
- http://files.draperyhardwarebypriscilla.com/uploads/1/3/0/9/130969742/5680261.pdf
- https://cdn.shopify.com/s/files/1/0433/1077/6484/files/rukoxefu.pdf
- https://cdn.shopify.com/s/files/1/0440/3098/4357/files/80952507094.pdf
- https://cdn.shopify.com/s/files/1/0432/3947/3314/files/xezudobeveru.pdf
- https://cdn.shopify.com/s/files/1/0432/0709/8529/files/54091756874.pdf
- https://cdn.shopify.com/s/files/1/0431/9988/9571/files/76200433155.pdf
- https://cdn.shopify.com/s/files/1/0431/2583/3882/files/arcgis_10._5_eitim_kitab.pdf
- https://cdn.shopify.com/s/files/1/0432/4661/6733/files/bhakti_ringtone_radha_krishna.pdf
- https://cdn.shopify.com/s/files/1/0433/8355/4206/files/tratamiento_de_rinitis_alergica_en_nios.pdf
- https://cdn.shopify.com/s/files/1/0434/1281/6034/files/ridumepisuzerujojoveseda.pdf
- https://cdn.shopify.com/s/files/1/0430/6547/5229/files/65666705155.pdf
- https://cdn.shopify.com/s/files/1/0439/3687/4651/files/61406205304.pdf
- https://cdn.shopify.com/s/files/1/0431/1482/3844/files/9927633825.pdf
- https://cdn.shopify.com/s/files/1/0432/9917/6612/files/salamanders_40k_supplement.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/1/0433/8355/4206/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000062ef.bin` `38942789259caf2cb7c0bef18778847696cf7df529409d88c997b7fcda035888`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62EF	5532 bytes
`font_01_sfnt_off000075da.bin` `68ee62c77005de59d288a0db1f401dd05e8a882f132629a6025a4f72bd3c573b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75DA	10460 bytes

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