Malicious PDF — malware analysis report

Static analysis result for SHA-256 86f111985a932b52…

MALICIOUS

PDF

33.2 KB Created: 2020-06-01 10:00:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7aa06617cf9ada99de79ff1622862c9f SHA-1: f8c8f91a0a7e807cf0a8d378ed6a4cfb35a900a3 SHA-256: 86f111985a932b52c58796c449d6915e1f1189a53a43ff47dd8996dc2f541b7d
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO manipulation or to direct users to malicious sites. The document body, though partially corrupted, suggests a lure related to 'free model boat plans'. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to create a network of linked pages. The primary IOCs are the external URLs found within the document, which likely serve as the destinations for this link farm.

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://allstarcreditrepair.com/uploads/1/3/0/7/130774965/130774965.html#free+model+boat+plans+balsa+wood
    • http://theaustraliancraftdrinkscompany.net/uploads/1/3/0/5/130588318/sobomipapopamux.pdf
    • http://lifespanus.com/uploads/1/3/1/4/131406606/3439356.pdf
    • http://think-differently.eu/uploads/1/3/0/3/130313188/3271131.pdf
    • http://highlandparkbaptistchurch.net/uploads/1/3/0/6/130604973/bejexabilosa_pitakererined_mitokadur_zawowolovekazex.pdf
    • http://stemgolf.com/uploads/1/3/0/4/130488935/jixevijiwox_gabide_tirafosexaf_wogenumukivavo.pdf
    • https://dugazide.files.wordpress.com/2020/05/64626482145.pdf
    • https://poxatesorev.files.wordpress.com/2020/05/74271305126.pdf
    • https://zokuvadezod.files.wordpress.com/2020/05/16274636103.pdf
    • https://mameloga.files.wordpress.com/2020/05/18706744401.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_off000056fe.bin
dcbc7ce622b853bde32bdabf58cd866e560c9ac59d9bd2ec569d6789715886eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56FE 10144 bytes

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