Malicious PDF — malware analysis report

Static analysis result for SHA-256 748add766283585a…

MALICIOUS

PDF

442.3 KB Created: 2020-08-14 01:52:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e52d3c634e273a1e574f90b5b10eb9bb SHA-1: 9774d78635962df3f70deee592d48c7465923e9c SHA-256: 748add766283585a645f35c887634cc8f8c970a3da3b1023830dd34b3361fda8
102 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to host further malicious content or phishing pages. The presence of urgency-related language in the document body further supports a phishing or scam attempt. While no scripts were explicitly extracted, the ML classifier and redirector link strongly indicate malicious intent, likely leading to a second-stage download or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cost+management+reporting+meaning
    • http://povakadod.katiemcbridephd.com/uploads/1/3/0/7/130738950/bd8ffe02e.pdf
    • http://files.ozpeleg.com/uploads/1/3/0/8/130874238/butosofozejaz.pdf
    • http://siwowor.charlestonmanufacturingcenter.com/uploads/1/3/2/6/132695471/3a9c1fb745c0a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/4986/1791/files/40660144989.pdf
    • https://cdn.shopify.com/s/files/1/0440/0319/7078/files/53471337374.pdf
    • https://cdn.shopify.com/s/files/1/0430/9336/0801/files/30639939241.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/30289315174.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/jawubajefonuzatavutusu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/uk_citizenship_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/nudotebojelolusuwazebaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/9007/6057/files/bread_and_tulips_movie.pdf
    • https://cdn.shopify.com/s/files/1/0430/7707/5108/files/92301206372.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/deep_breathing_techniques_for_anxiety.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00067b37.bin
c27f2c2924f3cc544630a3874315f4db824ab430847f0ad5001af55835f1c074
pdf-font-stream PDF embedded font (sfnt) at offset 0x67B37 5012 bytes
font_01_sfnt_off00068c28.bin
602ef8758aa88032ef799b22e6ae218222a9be9b1c51cc116ea29b03351eb13d
pdf-font-stream PDF embedded font (sfnt) at offset 0x68C28 17760 bytes
font_02_sfnt_off0006c340.bin
aabbb95e4258a1bccfe6759090a0a8b97a33e8154131110566ffb2eaa8fdb080
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C340 16148 bytes