Malicious PDF — malware analysis report

Static analysis result for SHA-256 67e243409e269479…

MALICIOUS

PDF

39.2 KB Created: 2020-08-30 05:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1152c404d867afab1badf1ea71a6da97 SHA-1: 2285043cfc8d598070adee798f356824616bdd46 SHA-256: 67e243409e26947931fe9befaa7cc8ea9d7fdfd77fb289987d6e214474ef7a09
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a deceptive title and a large number of embedded links, many of which point to Shopify domains hosting other PDFs. One critical heuristic indicates a link to known malicious redirector infrastructure at 'ttraff.com'. This suggests the document is designed to redirect users to malicious sites, potentially for phishing or malware distribution.

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=option+as+a+strategic+investment+free+download
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/46088305318.pdf
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/zumojenexisirukofu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6909/files/58988345757.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/43510716331.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/short_assured_tenancy_agreement_template_england.pdf
    • https://static.usrfiles.com/ugd/b8c837_3d74c6a79e1b4abab6a120551eceb76f.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9d6be1a28a548239a37b2455aadb723.pdf
    • https://static.usrfiles.com/ugd/f46427_55df93ae0a88427dbb2a5bc121d81655.pdf
    • https://cdn.shopify.com/s/files/1/0439/0879/2475/files/dermaroller_avant_apres.pdf
    • https://cdn.shopify.com/s/files/1/0436/0706/4734/files/xozezokitafe.pdf
    • https://cdn.shopify.com/s/files/1/0431/1321/8199/files/98125166669.pdf
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/landscape_in_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0429/9004/3287/files/xegobivilubawuranodapaxod.pdf
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/xukutigekojoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4099/files/14046540572.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/test_html_file.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_off00005945.bin
e68c9e73444774d7cfa86616036611e9119f7e2388c3ee6692f140249736e0c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5945 5656 bytes
font_01_sfnt_off00006c7a.bin
24f12a188c14268cb7a78c3a198f2e2df6d5678144f5c24fbdb711c4944d6205
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7A 10164 bytes