PDF malware analysis — malicious · d0af350acc2fcdc2

MALICIOUS

PDF

43.8 KB Created: 2020-08-10 14:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b0668c397d3b1d0d50b7cd3b7f7e9663 SHA-1: 34314aa68648161a7018d21abf800d75d0d36343 SHA-256: d0af350acc2fcdc233741603060c0ada990f0b534f691ada9b773c500b0920cb

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be SEO-related keywords and a URL that mirrors the malicious redirector. The presence of numerous external links, including a malicious redirector, strongly suggests an intent to direct users to potentially harmful websites.

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.ru/pify?keyword=bottom+up+and+top+down+processing+in+listening+pdf
- http://files.ellendonaldson.com/uploads/1/3/1/8/131856146/tetoj.pdf
- http://files.ahs2020national.com/uploads/1/3/1/0/131070612/600544f4.pdf
- http://files.brokencompasslifestlye.com.au/uploads/1/3/1/3/131380901/2313443.pdf
- http://kukikugeb.currantcreekoutfitters.net/uploads/1/3/2/8/132814930/f73f8389cd84.pdf
- http://files.justicefarms.com/uploads/1/3/1/3/131380213/tabavuvorezib.pdf
- https://cdn.shopify.com/s/files/1/0431/2583/3882/files/simple_past_negative_and_interrogative_form_exercises.pdf
- https://cdn.shopify.com/s/files/1/0427/6856/4380/files/gaforojavukolodij.pdf
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/ciencias_auxiliares_de_la_historia.pdf
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/vojutejerifofomutamola.pdf
- https://cdn.shopify.com/s/files/1/0431/5863/4658/files/23642951945.pdf
- https://cdn.shopify.com/s/files/1/0430/4742/0066/files/85191733527.pdf
- https://cdn.shopify.com/s/files/1/0437/8597/8013/files/66478311184.pdf
- https://cdn.shopify.com/s/files/1/0436/2525/0974/files/basedatetopigiworo.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/75905384816.pdf
- https://cdn.shopify.com/s/files/1/0433/4364/2773/files/17037326017.pdf
- https://cdn.shopify.com/s/files/1/0435/1400/3610/files/logaga.pdf
- https://cdn.shopify.com/s/files/1/0433/6972/6110/files/89294257223.pdf
- https://cdn.shopify.com/s/files/1/0431/1518/4277/files/wajabanosojedukigekunad.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_off00006af1.bin` `9a30696a2ab66e97091643d9558e1f629934dea3ab05b4446d3a909375a26765`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6AF1	5616 bytes
`font_01_sfnt_off00007e00.bin` `8d0fbbaa63e6f4b6369fdc0faec9e4831b5e6696b43c349a5e742429e3ff5418`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E00	10504 bytes

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