Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddda5d2f64adaf5…

MALICIOUS

PDF

34.5 KB Created: 2020-04-18 04:43:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: aae8006455ec536bc16929db856400f0 SHA-1: 08f362a056bc0b9800d53811b507a87aeb1f7ad8 SHA-256: 8ddda5d2f64adaf589d5aaa00cbefa7b2ef527e11a73356e128d1720ede47ec4
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body also contains a link to 'longfordgardencentre.net'. These links likely serve to redirect users to malicious content or for SEO manipulation purposes. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://longfordgardencentre.net/uploads/1/3/0/4/130476048/130476048.html#kshb+news+reporters
    • http://epiccrane.com/uploads/1/3/0/3/130312957/6214143.pdf
    • http://bigfnthings.com/uploads/1/3/1/3/131379320/zoxorufag.pdf
    • http://ianchinich.com/uploads/1/3/0/3/130379070/piteb_siroverejet_ziviru_livafova.pdf
    • http://lose-weight--faster.com/uploads/1/3/1/4/131410952/fe333.pdf
    • http://kavid.ca/uploads/1/3/0/8/130813668/c8ce5b77151.pdf
    • http://lisocialsecurity.com/uploads/1/3/0/6/130621781/197125.pdf
    • http://dracamille.com/uploads/1/3/0/8/130874030/63eb56c3eb0.pdf
    • http://harnischart.com/uploads/1/3/0/9/130969469/tutom.pdf
    • http://huntingpigs.com/uploads/1/3/1/4/131409616/3fdb8f5c60608c.pdf
    • http://appointtalent.com/uploads/1/3/0/2/130287542/nolafeduwi.pdf
    • http://ferrotrend.sk/uploads/1/3/0/9/130969270/dumakoz.pdf
    • http://nolimitreppers.com/uploads/1/3/1/3/131381003/tidovoxoxexim.pdf
    • http://tacfory.com/uploads/1/3/1/4/131406762/buwofotinudomowa.pdf
    • http://shiveringstringswest.com/uploads/1/3/0/7/130738710/7031178.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_off00005e4d.bin
161ad1d110afa9415f3da72c4c25e89e0f96b787dbd86adb9fdb50fee3098336		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4D 8396 bytes

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