Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf78f922da85e310…

MALICIOUS

PDF

40.5 KB Created: 2020-05-18 00:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94c633aa7fb876d7cdfaf29e12d9c576 SHA-1: 6f6c9541bc89fbcfbe0fc1cdf8ee3adc8e276a32 SHA-256: bf78f922da85e310d47425c2947431ad99648cc04b1797c11138c7344b2dc56e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to distribute malware or engage in phishing. No scripts were extracted, limiting further analysis of direct payload delivery mechanisms.

Heuristics 3

  • 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.
  • 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://helpking.org/uploads/1/3/0/5/130588478/130588478.html#audible+android+app+not+updating+library
    • http://corporaterentalsbyowner.net/uploads/1/3/1/4/131438308/8321557.pdf
    • http://presidentsofantarctica.com/uploads/1/3/0/2/130288326/lugax-ponopufikis-pixofun-gisopumewaxuf.pdf
    • http://queenanneapparel.com/uploads/1/3/0/2/130272290/talobomo_pasojil_wikedevogurex.pdf
    • http://palmettobeach.net/uploads/1/3/0/5/130541103/6976260.pdf
    • http://helpwithadollar.com/uploads/1/3/1/3/131378973/9314481.pdf
    • http://thegivenessproject.org/uploads/1/3/0/5/130550785/2da86820.pdf
    • http://lloydminterpaintingandrepair.com/uploads/1/3/1/4/131483144/5024297.pdf
    • http://sachsinsurancebrokers.com/uploads/1/3/1/4/131452887/802633.pdf
    • http://wikinstedia.com/uploads/1/3/0/2/130288533/5138449.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_off00007551.bin
20308e67e05c1e478355f626c6e496979b89e8269be046eda45323d3dd58c278		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7551 9892 bytes

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