Malicious PDF — malware analysis report

Static analysis result for SHA-256 077a96b16d51b6d7…

MALICIOUS

PDF

46.7 KB Created: 2020-08-30 15:47:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dee6c4f45ed9e596053c03682adb579a SHA-1: 405af8059b817801d5f3822178b12adc6ec7f543 SHA-256: 077a96b16d51b6d7a3932b2c7c51d1dfe9747ba72e331a04d1e4fe60c5f03c8a
154 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to 'Avalonia chronicles book 1 pdf' and a URL that is flagged as malicious. This suggests a phishing or scam attempt to redirect users to malicious infrastructure.

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.club/wix?keyword=avalonia+chronicles+book+1+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/7461/7511/files/murunapaxelizo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/sikovakagexejupopofol.pdf
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/dezloader_4._3_con_spotifi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7742/6584/files/coliform_mastitis_in_goats.pdf
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/django_template_if_not_blank.pdf
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/59801132745.pdf
    • https://static.usrfiles.com/ugd/b8c837_e21ac01d42b1456f88727182eb37006b.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a63750ec0f04388874ce40097508cc2.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f066c0bc46c47048f988b9d4575c723.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000616f.bin
9323f4a2ac2557527d2a83a0f7f7364e54a3dec4d97372db0557a274adaa2d0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x616F 5548 bytes
font_01_sfnt_off00007447.bin
2d96b80bf61bc6f52b4c57ea448aa661c324ef16713145729ace2426d6b99e95
pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 10460 bytes
font_02_sfnt_off0000983c.bin
f267a97a42ed964490c0c36cf8d24d30f5cfc386ee24850e75bb3a4991f11828
pdf-font-stream PDF embedded font (sfnt) at offset 0x983C 16376 bytes