Malicious PDF — malware analysis report

Static analysis result for SHA-256 224de23f2110484c…

MALICIOUS

PDF

47.1 KB Created: 2020-04-04 09:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8cf163a4f35f9fe747a2feab211d1adc SHA-1: 007f2b2cc01601640470dec39115a2ba532ec282 SHA-256: 224de23f2110484cfab3d7d3aecfc10d14a9c0b767c46029fcdd1eda2f109195
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to a link farm hosted on wordsagain.xyz. The document body, though partially obfuscated, contains the phrase 'Hur man bygger en hubless hjul' (How to build a hubless wheel) and numerous URLs, suggesting a lure to a content farm designed to host malicious links. The primary intent appears to be directing users to a network of websites, likely for further exploitation or phishing.

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://farm-chef.com/uploads/1/3/1/3/131384021/131384021.html#hur+man+bygger+en+hubless+hjul
    • http://wordsagain.xyz/uploads/1/3/1/3/131381036/logofakafowowovet.pdf
    • http://thedecorativedog.com/uploads/1/3/0/7/130774993/zesebumekageto.pdf
    • http://isobelmargot-art.com/uploads/1/3/0/7/130738821/zedevafipofiz_nevufuw.pdf
    • http://showgirl.life/uploads/1/3/0/4/130479312/1054979.pdf
    • http://kwb-vlaanderen.be/uploads/1/3/0/4/130476266/479a5a7d.pdf
    • http://mountainviewbistro.com/uploads/1/3/0/2/130288523/1979346.pdf
    • http://995implant.com/uploads/1/3/0/3/130313319/8574170.pdf
    • http://thegoldencrop.com/uploads/1/3/1/0/131070880/nupubavavozidep.pdf
    • http://marrionbraunstein.com/uploads/1/3/0/9/130969301/ripivatevunoze.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_off00008f85.bin
b69462a402bfbc3183a8205554909484ed9d593c37e23a0860bee707d58208a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F85 8388 bytes

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