Malicious PDF — malware analysis report

Static analysis result for SHA-256 e26c73b7482ee4af…

MALICIOUS

PDF

50.1 KB Created: 2020-08-11 22:42:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2bee1a9ddb6dd2c3bc97453c6a3e088f SHA-1: 9ff7bcf1836c5495d376d6014a85a701dfbd131f SHA-256: e26c73b7482ee4af917e60c1b06fd753da8da47368cbdf77d7d4d3bcb0aed67e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with one prominent link directing to 'https://ttraff.com/pify?keyword=complete+1001+arabian+nights+pdf', identified as a malicious redirector. The document body, though heavily obfuscated, appears to contain the same title, suggesting a lure to disguise the malicious intent. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential link farm or SEO manipulation 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/pify?keyword=complete+1001+arabian+nights+pdf
    • http://files.ddsbeautysupply.com/uploads/1/3/1/4/131453724/6202340.pdf
    • http://files.murphysgardensgalena.com/uploads/1/3/2/7/132740628/aa073008.pdf
    • http://files.peterdurst.com/uploads/1/3/1/4/131437848/jorurojama.pdf
    • https://cdn.shopify.com/s/files/1/0434/6524/4832/files/38941299973.pdf
    • https://cdn.shopify.com/s/files/1/0430/8415/2986/files/zexazoku.pdf
    • https://cdn.shopify.com/s/files/1/0434/2992/0930/files/genetic_programming_an_introduction_wolfgang_banzhaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/2882/4742/files/wondershare_editor_pro_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0445/5025/8852/files/advanced_scratch_programming_tutorials.pdf
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/genox.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64831632673.pdf
    • https://cdn.shopify.com/s/files/1/0432/6952/1568/files/fekuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/9588/3925/files/ratiwalovoxadegoze.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/walking_dead_s07e02_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0437/3194/3585/files/71545508072.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/79431040280.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_off00008603.bin
85f37792733f3e4fc9714fd28cb7b993eb72700f49722cdccd9643ab4dc22ee2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8603 5696 bytes
font_01_sfnt_off00009930.bin
dce2aa1f7e7923914a2b395392900b6596753df68dbbb2883966337c0502118c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9930 10100 bytes