PDF malware analysis — malicious · f85828c060e02ec7

MALICIOUS

PDF

46.0 KB Created: 2020-08-06 22:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 69df4dc92214712129fe8f7ccc31b8c7 SHA-1: 970e3ee7c1be1083b3d7d86502dacd902054956d SHA-256: f85828c060e02ec7eb57a9187f078f77150d927c5e3a253abf1488810a8315d8

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, which is the primary attack vector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=electrolysis+of+brine+solution+pdf', suggesting a lure to trick users into clicking. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to Shopify domains, likely to improve search engine ranking for malicious content. 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.cc/pify?keyword=electrolysis+of+brine+solution+pdf
- http://fajom.bigmikeroadshow.com/uploads/1/3/1/4/131453645/30eea7f.pdf
- http://files.ahta.info/uploads/1/3/1/3/131381003/rekogin.pdf
- http://files.laughingnature.com/uploads/1/3/1/8/131856173/ae0db62d9187.pdf
- https://cdn.shopify.com/s/files/1/0433/9105/8083/files/tractor_manuals.pdf
- https://cdn.shopify.com/s/files/1/0435/2235/9447/files/engineering_economic_analysis_13th_edition_solutions.pdf
- https://cdn.shopify.com/s/files/1/0429/7038/2490/files/19170905661.pdf
- https://cdn.shopify.com/s/files/1/0434/5282/5750/files/47496042841.pdf
- https://cdn.shopify.com/s/files/1/0427/3196/2535/files/lukaxumumawidojaveline.pdf
- https://cdn.shopify.com/s/files/1/0428/3406/7615/files/88668795864.pdf
- https://cdn.shopify.com/s/files/1/0432/4956/5853/files/kikimoxaweke.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdf
- https://cdn.shopify.com/s/files/1/0432/3606/5438/files/sopilerovejolizamag.pdf
- https://cdn.shopify.com/s/files/1/0434/4388/0103/files/17604570903.pdf
- https://cdn.shopify.com/s/files/1/0429/5557/1353/files/79452290451.pdf
- https://cdn.shopify.com/s/files/1/0431/6299/2795/files/gowapagivawareseretuto.pdf
- https://cdn.shopify.com/s/files/1/0431/8789/6488/files/5217585016.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_off0000748e.bin` `2d2e9de48d7fd309c8294cadacb59813962e22c2f34f7901bc957c00bd5adf76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x748E	5136 bytes
`font_01_sfnt_off0000861f.bin` `bf03211a1843f1d594965fbc1694f73ff2ad883747b4717427b0784b45b79667`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x861F	10936 bytes

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