Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ee7eca49df83864…

MALICIOUS

PDF

44.3 KB Created: 2020-08-22 12:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6be78282fe9a795af1230cb099467cca SHA-1: c9d9b6b2081198679d9bfd6505a33e6f1a25af33 SHA-256: 5ee7eca49df83864924f8adbb8117c2762bf3eec2061a53f228ae11796d9dea8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though partially obfuscated, mentions 'Aurora 3d animation maker templates free' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. 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=aurora+3d+animation+maker+templates+free
    • http://files.channelreligion.com/uploads/1/3/0/7/130740432/jegeg.pdf
    • http://gexerij.lastellasalon.com/uploads/1/3/1/4/131454526/5289389.pdf
    • http://kijopobo.kellymichellebaker.com/uploads/1/3/0/8/130874679/5673650.pdf
    • http://files.growlerlamp.com/uploads/1/3/1/4/131437233/peberewipa_gadavubarof_dedawa_kejezu.pdf
    • http://files.banyantreeatpavilion.com/uploads/1/3/0/9/130968921/bc07a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0434/1566/6849/files/15645720883.pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/rufemalovewexupefo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2702/1480/files/zubunivizelifade.pdf
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/xitutakosolujenukuzikip.pdf
    • https://cdn.shopify.com/s/files/1/0438/1832/0034/files/sesawax.pdf
    • https://cdn.shopify.com/s/files/1/0436/5733/0853/files/noxibajase.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zosogorimojafi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/nerononitu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/2025179241.pdf
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/93557921927.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060a4.bin
f3b520726b27a796140919419c61891fa2b3a87cf7fc5f355095fb2c76eb2c67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60A4 5284 bytes
font_01_sfnt_off00007282.bin
9bdb47a03ae10f3cf1f711e1b7e79a826e16f4c1492ebb472784401bde63cdd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7282 10396 bytes
font_02_sfnt_off0000961e.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x961E 4324 bytes

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