Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0f2fea8034bf6f9…

MALICIOUS

PDF

47.6 KB Created: 2020-04-22 13:03:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 612d9809d2d6c0f182f094b208daa135 SHA-1: fb7f4367925de626c69201d26c86007702985f6c SHA-256: c0f2fea8034bf6f9f67ddaff4442806aeb64874a90514c78472aefc5d76c5d2f
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a distribution point for further malicious content. The document body itself is heavily obfuscated and contains embedded URLs, reinforcing the malicious intent. The primary attack pattern involves redirecting users to a multitude of external sites.

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://poktli.net/uploads/1/3/1/3/131381326/131381326.html#the+catholic+answer+bible+nab+pdf
    • http://blessedfamily.net/uploads/1/3/0/7/130740590/nusesafipepelujuvo.pdf
    • http://oncarolinast.com/uploads/1/3/0/9/130969311/gifij.pdf
    • http://repairandinstall.com/uploads/1/3/0/6/130604621/kopolubov.pdf
    • http://familyhartlen.ca/uploads/1/3/1/3/131383467/6031779.pdf
    • http://forkcollective.com/uploads/1/3/1/3/131378921/bofabofemabered.pdf
    • http://yougotitmade.net/uploads/1/3/0/5/130588681/dunujevig.pdf
    • http://imaraeats.com/uploads/1/3/1/4/131406062/ae54817a6ad8942.pdf
    • http://directbuylocalvendors.com/uploads/1/3/0/6/130639591/7926917.pdf
    • http://taymanrestorationsinc.com/uploads/1/3/1/0/131070080/gukorelalud-gejofojidudulom-jawogukabidapen-sepinoxegizexib.pdf
    • http://accessconciergebahamas.com/uploads/1/3/1/4/131437689/zikavi-kivozuzusogur-bejejoge.pdf
    • http://koiriensijaiskoti.com/uploads/1/3/0/5/130588444/5404509.pdf
    • http://musiccitybachelorettes.com/uploads/1/3/0/4/130488244/zatekirusofele.pdf
    • http://godbodfitness.com/uploads/1/3/1/4/131407045/b87568e58.pdf
    • http://optimizedcr.com/uploads/1/3/0/4/130489926/lakivigevapimej_gobemosuzidi.pdf
    • http://xn--missmichdesigns-inb.com/uploads/1/3/0/6/130620508/af03cd2a413.pdf
    • http://musiccitybachelorettes
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c1a.bin
8d9e93e670ed7b0ffe733d5b20589bffda2b1e30d0dc73eb5148c80df941d31e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C1A 8556 bytes
font_01_sfnt_off00009cff.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFF 16036 bytes

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