PDF malware analysis — malicious · 8ecd8c7ca727ae6f

MALICIOUS

PDF

45.6 KB Created: 2020-07-29 13:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4f306f5c154ff9f36e42ca97b9007610 SHA-1: 9a8a9ac6f2c0e533b63c2fb5238598dabaa79585 SHA-256: 8ecd8c7ca727ae6f9e35f4c82f151ef21919a4913292b064870371be5a4a8f99

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a job advertisement lure and embeds multiple external links. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=job+advertisement+for+hr+manager+pdf'. Another heuristic identified a PDF link farm, with many links pointing to shopify.com domains, suggesting an attempt to obscure the malicious destination. No scripts were extracted, but the presence of malicious redirector links strongly suggests the document is designed to lead users to a phishing or malware distribution site.

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=job+advertisement+for+hr+manager+pdf
- http://files.texaslonestarleather.com/uploads/1/3/1/0/131070506/914450.pdf
- http://files.evalewarne.com/uploads/1/3/1/3/131383649/4873590.pdf
- http://files.carrscoins.com/uploads/1/3/1/0/131070688/c45142d.pdf
- http://files.tlghk.org/uploads/1/3/1/4/131452904/433857941d19783.pdf
- https://cdn.shopify.com/s/files/1/0430/2739/8807/files/5073820189.pdf
- https://cdn.shopify.com/s/files/1/0431/1760/9122/files/18577801364.pdf
- https://cdn.shopify.com/s/files/1/0429/2024/7462/files/felodediniloguxenaludowir.pdf
- https://cdn.shopify.com/s/files/1/0438/1910/6466/files/18564716765.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdf
- https://cdn.shopify.com/s/files/1/0431/6646/6202/files/70978347825.pdf
- https://cdn.shopify.com/s/files/1/0435/7799/9528/files/94914896942.pdf
- https://cdn.shopify.com/s/files/1/0440/8170/9206/files/jufezonotaradudomuwon.pdf
- https://cdn.shopify.com/s/files/1/0432/4474/8950/files/22809344278.pdf
- https://cdn.shopify.com/s/files/1/0432/3013/4427/files/ruzid.pdf
- https://cdn.shopify.com/s/files/1/0431/6263/2360/files/8624669496.pdf
- https://cdn.shopify.com/s/files/1/0427/7318/4678/files/nagodazozerudenigekulaki.pdf
- https://cdn.shopify.com/s/files/1/0431/6623/6834/files/pipinijibidumeduzu.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_off000073cf.bin` `bd56a84cf46da9ad4ca1b13b52df62b4eec9e8853a612b2024d7e765dc93e9ce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73CF	5400 bytes
`font_01_sfnt_off000085ff.bin` `6813cbb716fe1a15a84fc6b5fe951059f179f07c92b2d5fc886fefc5d3917828`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85FF	10288 bytes

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