PDF malware analysis — malicious · f14015e0303b0327

MALICIOUS

PDF

33.2 KB Created: 2020-08-12 11:49:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 47fdeb618d77cb1bf3cb59792f71bd0b SHA-1: 61572d1e3ae1204cc947474739c8852578b502ac SHA-256: f14015e0303b0327c9de637f99fd6259e43ec5956c5abb65fc0f646ef27d7d3f

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=ccsf+map+pdf'. Another heuristic identifies a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO abuse. The document body, though heavily obfuscated, contains references to 'ccsf map pdf' and the URL 'https://ttraff.ru/pify?keyword=ccsf+map+pdf', reinforcing the lure. 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.ru/pify?keyword=ccsf+map+pdf
- http://files.nativeinstinct.co/uploads/1/3/2/6/132682792/medat_zekovis_lanuveriwe.pdf
- http://files.nicolettegraceboaz.com/uploads/1/3/1/8/131856626/veduxuwulus.pdf
- http://files.anastasiasiberians.com/uploads/1/3/1/6/131606035/8233971.pdf
- https://cdn.shopify.com/s/files/1/0435/3048/5915/files/ruvibufamogafemiw.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/44791190088.pdf
- https://cdn.shopify.com/s/files/1/0434/4751/7349/files/67768466545.pdf
- https://cdn.shopify.com/s/files/1/0432/6516/3422/files/kukinig.pdf
- https://cdn.shopify.com/s/files/1/0431/7511/6964/files/25934131165.pdf
- https://cdn.shopify.com/s/files/1/0433/5943/6951/files/temple_of_elemental_evil_walkthrough.pdf
- https://cdn.shopify.com/s/files/1/0430/8258/0130/files/85736422508.pdf
- https://cdn.shopify.com/s/files/1/0430/9693/2501/files/large_intestine_anatomy.pdf
- https://cdn.shopify.com/s/files/1/0434/2457/9751/files/how_to_convert_to_vertex_form.pdf
- https://cdn.shopify.com/s/files/1/0434/0737/6542/files/gramatyka_angielska_dla_dzieci_chomikuj.pdf
- https://cdn.shopify.com/s/files/1/0436/0467/2675/files/kisader.pdf
- https://cdn.shopify.com/s/files/1/0430/5453/0709/files/7153582708.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7405/files/19341402177.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_off00004543.bin` `c9edfc63d0f435f81a353ac26275b90ec466b2b6adcf647dfe99af3d19b9bb6b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4543	5080 bytes
`font_01_sfnt_off0000566e.bin` `3cf4cca6e535f40e249a06b65d06f234a1eb712c6c2ccc26a230d469215579c9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x566E	9948 bytes

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