Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44cb8caa83c31e7…

MALICIOUS

PDF

41.5 KB Created: 2020-05-15 07:13:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b59c0360ce1014e9b102bc428105a93 SHA-1: ce2dddee94616c5b1fb07769eac777b3e61199fb SHA-256: d44cb8caa83c31e72a5c48c11152a53b6192796c21c5498c49ec780555188cae
70 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO poisoning or redirecting users to malicious sites. The document body, though partially corrupted, suggests a lure related to 'free contract templates for independent contractors', aligning with the 'SE_INVOICE_LURE' heuristic. The primary attack pattern involves tricking the user into clicking on one of the embedded URLs, which likely leads to a compromised or malicious website.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://paroshotels.online/uploads/1/3/0/8/130873738/130873738.html#free+contract+templates+for+independent+contractors
    • http://ceadethiopia.com/uploads/1/3/1/4/131407867/xonatokok-bigesulapizidik-buvupukuwelini.pdf
    • http://jupitersparks.com/uploads/1/3/1/0/131071315/5051444.pdf
    • http://alohamovement.org/uploads/1/3/0/7/130775373/1e1304f9ac610.pdf
    • http://mysjportfolio.com/uploads/1/3/1/0/131070071/fifafi.pdf
    • http://irisgofotografie.nl/uploads/1/3/0/8/130874504/pebet-sufekaveju-zerotuwitetebub.pdf
    • http://amberorquiz.com/uploads/1/3/0/7/130739559/b32b55f4683cb4e.pdf
    • http://jackhammermotorcycles.com/uploads/1/3/0/4/130483631/2226743993.pdf
    • http://2kute4ufashionboutique.com/uploads/1/3/0/5/130550715/6271756.pdf
    • http://bunsngunsfitness.com/uploads/1/3/0/3/130379182/1ee095e03cc29.pdf
    • http://vhicsteelart.com/uploads/1/3/0/9/130969389/sonuto_xapiki.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000781d.bin
030cf0a050fd95743408d3301a5d3e2d7759107d7f802770380f476e4801dbec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x781D 10356 bytes

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