Malicious PDF — malware analysis report

Static analysis result for SHA-256 6151acdb3bd46ae5…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 08:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a8533684b352a8e3fb64342c078fc0c SHA-1: 8c123c2edea31d7c9a0b78adf8f7dc8663ec3bd7 SHA-256: 6151acdb3bd46ae52d89dac25492062ba806f3fb0eb4e4aab3c55599e692271b
154 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.cc/pify?keyword=star+wars+avatar+creator', is identified as a malicious redirector. The document body also contains numerous links to PDF files hosted on various domains, suggesting a link farm or SEO poisoning attempt. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or redirection scheme.

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.cc/pify?keyword=star+wars+avatar+creator
    • http://files.floweredconcrete.net/uploads/1/3/0/7/130775050/pukuretatuj.pdf
    • http://files.danielcont.com/uploads/1/3/1/4/131438167/pibunebok_tatudotolu_dinugito.pdf
    • http://files.westwoodhillsah.com/uploads/1/3/1/6/131636625/dofukotoza.pdf
    • http://files.shopragjunkie.com/uploads/1/3/1/3/131382470/3724159.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/61965524912.pdf
    • https://cdn.shopify.com/s/files/1/0437/3879/2085/files/98838979422.pdf
    • https://cdn.shopify.com/s/files/1/0432/6991/4782/files/32673933121.pdf
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/bolutiwas.pdf
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/dekale.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4492/files/febexoruwolupoka.pdf
    • https://cdn.shopify.com/s/files/1/0436/0686/8131/files/fojatajopivakuzikobe.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/kabifupitozokaravuxeleded.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/71044865555.pdf
    • https://cdn.shopify.com/s/files/1/0431/6430/3522/files/80343781156.pdf
    • https://cdn.shopify.com/s/files/1/0440/0214/8510/files/gupokazixebejuburivux.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/14318291029.pdf
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/death_knight_pvp_6._2.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_off00006491.bin
5254332f86f66aee17c3e462a955838a2d0e1ab57d19f6581e8cc9fe56fd4709		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6491 5016 bytes
font_01_sfnt_off000075c8.bin
0da555151d79783b45e6352c546886861bba6e379b094ffcdcd2415d7b0ebd10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C8 10052 bytes

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