Malicious PDF — malware analysis report

Static analysis result for SHA-256 147fd1b5ce272372…

MALICIOUS

PDF

42.1 KB Created: 2020-08-29 18:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1bfb704ff59a06e9ecad4a85118cdbcb SHA-1: 1a4e2f39a432ac0126a1493d00d50db454c4e9ae SHA-256: 147fd1b5ce2723729a1615b85adcfe1246e9653f481f39378756d33b81c7aa6f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a deceptive link presented as a 'passive to active voice converter online tool' which redirects to the malicious URL https://ttraff.ru/wix. This URL is flagged as a known malicious redirector, indicating a phishing or scam attempt. The document also hosts a large number of links to other PDFs, suggesting a link farm for SEO manipulation or to distribute further malicious content. No scripts were extracted, but the presence of malicious redirector links and the link farm structure strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=passive+to+active+voice+converter+online+tool
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/5580/0739/files/69991682465.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/daxoriro.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/www_bangla_chuda_chudi_com.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/rafeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/kepeguninisanajavobevi.pdf
    • https://static.usrfiles.com/ugd/b8c837_976983f0ae774b2dadcb0fd2b6769143.pdf
    • https://static.usrfiles.com/ugd/b8c837_627f96bf1c454a9d8d855841d8b2b7e2.pdf
    • https://static.usrfiles.com/ugd/b8c837_94f15a7589ab442185a06ff5ac978955.pdf
    • https://static.usrfiles.com/ugd/b8c837_c08fcbbed20741a2b12fb4785c554676.pdf
    • https://static.usrfiles.com/ugd/565485_6286f8e59992444d879b2cd8b2f49638.pdf
    • https://cdn.shopify.com/s/files/1/0436/5149/8142/files/bahara_song_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/1678/8900/files/10409846051.pdf
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/lanubivirufa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6048/5541/files/30284769324.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/beef_jerky_nutrition_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/4275/0114/files/corrosion_of_austenitic_stainless_steels_mechanism_mitigation_and_monitoring.pdf
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/477440062.pdf
    • https://cdn.shopify.com/s/files/1/0435/8576/5533/files/kexogofoko.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067a0.bin
968b5fe04c1b26c638ddfe2aac986ee68e9f039270079bc89f9ce54c86788ef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67A0 4856 bytes
font_01_sfnt_off00007831.bin
3c7cf7a6051e2b6628444795472c8813c793423bd4c4a247dd1075d3a3e19d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7831 10288 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.