Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d4b78391406e0f6…

MALICIOUS

PDF

40.2 KB Created: 2020-08-06 00:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87f0636d26541eaf8248ffbb111322d1 SHA-1: fefc0b91a97de39f025bf05586fdd3485674a93e SHA-256: 0d4b78391406e0f6daeb31d5664d1a48b9eb8856f389428e5749b363e7921d51
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. One of the primary links, 'https://ttraff.com/pify?keyword=persona+moral+definicion+pdf', is identified as a malicious redirector. This indicates the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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/pify?keyword=persona+moral+definicion+pdf
    • http://dozigarun.belcanto.org/uploads/1/3/2/6/132695615/retavetilisizaw.pdf
    • http://files.theclotheslinestore.com/uploads/1/3/0/7/130775784/2108255.pdf
    • http://files.vivekashok.com/uploads/1/3/2/6/132695200/piralezajafe_busuxo.pdf
    • http://files.didsburyjuniors.com/uploads/1/3/2/6/132681824/maxipupamekep.pdf
    • http://files.marciejbronstein.com/uploads/1/3/2/3/132302824/26fa9e4fc0d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/6220/6357/files/7089935261.pdf
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/gubeji.pdf
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/28531511366.pdf
    • https://cdn.shopify.com/s/files/1/0437/8502/7746/files/13539946909.pdf
    • https://cdn.shopify.com/s/files/1/0434/6655/5556/files/rofunadedoxezefuzi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/bewaroluri.pdf
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/foxemowoxovojuledinexata.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zovoxumaf.pdf
    • https://cdn.shopify.com/s/files/1/0430/3237/9545/files/birovuwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/43968106939.pdf
    • https://cdn.shopify.com/s/files/1/0428/8479/2479/files/xasorukofujum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pizegavegip.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/41967133482.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_off00005fa6.bin
8ab8203efaaf8a25f7ada5722169fdc61b626d2fccdb5cea96107de4d245dc52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA6 5300 bytes
font_01_sfnt_off00007199.bin
c45420314d6b708a365b55c3fac2cc555efc39eae1d675e5fcfdd0f7f2efc1ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7199 10124 bytes

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