Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea47719c09e859a2…

MALICIOUS

PDF

45.2 KB Created: 2020-07-26 03:57:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d172aec6dd52b14531b41c509e2adf21 SHA-1: d9bac2cf9301c3db4267a1fb3648703aa9140c49 SHA-256: ea47719c09e859a24e74aa8e17f20f763c4b6f7eda23c0caba025661bb92fea1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to 'ttraff.com', identified as a malicious redirector. This suggests a tactic to drive traffic to potentially malicious or phishing sites. The ML classifier also strongly indicated maliciousness.

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=lamborghini+song+video++tinyjuke
    • http://files.opensanctuarytilba.org/uploads/1/3/2/6/132682739/tepegiwet_jomuwojejenap_zenus_veraruzi.pdf
    • http://files.iridescentideas.com/uploads/1/3/1/6/131606206/xofupe.pdf
    • http://files.treeoflifeph.com/uploads/1/3/0/9/130968912/c6222.pdf
    • http://files.frunkpuppyshop.com/uploads/1/3/1/1/131164569/33567c00ae93.pdf
    • http://files.spencerandsarahphotography.com/uploads/1/3/0/7/130739802/nixobibeledagopuw.pdf
    • http://files.opensanctuarytilba.or
    • https://cdn.shopify.com/s/files/1/0431/5663/5812/files/78971788358.pdf
    • https://cdn.shopify.com/s/files/1/0437/0602/4090/files/77605303596.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/19421949137.pdf
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/75599715794.pdf
    • https://cdn.shopify.com/s/files/1/0431/9982/4032/files/67864051217.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/guwumi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdf
    • https://cdn.shopify.com/s/files/1/0434/3287/0037/files/32920250516.pdf
    • https://cdn.shopify.com/s/files/1/0428/7135/7596/files/raxutizinavudewipi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/96814696704.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/22302719413.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/valudoxudasizajib.pdf
    • https://cdn.shopify.com/s/files/1/0434/2356/3925/files/59935206712.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007013.bin
84d099d91e1a5075d8876f630732f925765531f4cf325561c0e0626bf7e2b5ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x7013 5472 bytes
font_01_sfnt_off00008295.bin
724d2c3f32c56ecbf2ab56f17e1af2a0b8969cb7a3c5dc41025f1da88dcee9fd
pdf-font-stream PDF embedded font (sfnt) at offset 0x8295 10744 bytes