Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d093ab29750ca43…

MALICIOUS

PDF

41.8 KB Created: 2020-08-30 07:11:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92f2ea351ceac5cf837644a58aa0199d SHA-1: d9cfddb72b79e77b95ca0e5f9b746aa951bc7230 SHA-256: 6d093ab29750ca4342f4a813a3c8cc3becf086c0e9e2cb1e5147a1b65b908499
154 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which are designed to appear as legitimate content but redirect to a malicious domain. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.com/wix?keyword=list+of+prophets+in+the+bible+in+chr as malicious. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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.com/wix?keyword=list+of+prophets+in+the+bible+in+chr
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/2080/4511/files/drug_induced_liver_injury.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/livesusuboloviwofew.pdf
    • https://cdn.shopify.com/s/files/1/0437/0045/3541/files/62382597570.pdf
    • https://cdn.shopify.com/s/files/1/0444/1689/3095/files/67630925584.pdf
    • https://cdn.shopify.com/s/files/1/0435/0525/4566/files/knowing_god_s_voice.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/simulazione_test_bocconi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0750/0711/files/81947612324.pdf
    • https://cdn.shopify.com/s/files/1/0436/4196/2646/files/nukudetefapudowokuvuze.pdf
    • https://cdn.shopify.com/s/files/1/0433/4292/1886/files/penberthy_sight_glass_manual.pdf
    • https://static.usrfiles.com/ugd/934fc3_f00b7551997c49a99d7274677843ca39.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b45f645a8f446e1a05ee991c4a83db5.pdf
    • https://static.usrfiles.com/ugd/6846fe_e937602d5bb84698839d02791b271de7.pdf
    • https://static.usrfiles.com/ugd/a58b01_6a167342b61549848555a983c71c9288.pdf
    • https://static.usrfiles.com/ugd/b8c837_31b9de4785a74f6d8c7e70ad1ce593df.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_off00006733.bin
7dc26bbce9260908e56b1532c3fdcf0fe5892f5cc32f8c49281ebd0885cb4929
pdf-font-stream PDF embedded font (sfnt) at offset 0x6733 4976 bytes
font_01_sfnt_off0000781c.bin
1aeb2f03082ca53c0cc96dcb1a9f39031bf5d288cbea8e7f8b372b7f2bd7556a
pdf-font-stream PDF embedded font (sfnt) at offset 0x781C 9984 bytes