Malicious PDF — malware analysis report

Static analysis result for SHA-256 65489ce05981558c…

MALICIOUS

PDF

38.9 KB Created: 2020-04-02 09:17:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7d3f7b2674416620317bc2c797c8ff21 SHA-1: d81c45bc82b54beddf5c3089c2b2e6fbbe70e9cb SHA-256: 65489ce05981558ceda7b721f5ff10971ac62d46bb1f184f875630851d87e8a4
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though partially corrupted, also contains several of these URLs. This suggests the primary purpose is to direct users to a network of websites, potentially for SEO manipulation or to serve malicious content. No scripts were extracted, and the document itself does not contain direct instructions, but the sheer volume of external links is highly suspicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://litecoinrealestate.com/uploads/1/3/0/5/130550741/130550741.html#6+1%2F2+pulgadas+a+centimetros
    • http://godspeedmagazine.net/uploads/1/3/0/2/130274304/xezawiza.pdf
    • http://doctorliliana.com/uploads/1/3/0/6/130605521/00d43.pdf
    • http://cleandienstleistungen.de/uploads/1/3/0/6/130603783/dogofu.pdf
    • http://newpublicnetwork.net/uploads/1/3/0/4/130435717/04bb9d09d.pdf
    • http://autoutilitaires66.com/uploads/1/3/0/5/130590596/6349090.pdf
    • http://www.gaiatreeshala.com/uploads/1/3/1/3/131380973/499bef8b43521.pdf
    • http://jerrystylz.com/uploads/1/3/0/6/130620443/fobefazebotijafanawa.pdf
    • http://barbarastitcher.com/uploads/1/3/0/8/130874655/5715471.pdf
    • http://leoneakolo.com/uploads/1/3/0/7/130740364/polakaxo-piguwu.pdf
    • http://healingfromcenter.com/uploads/1/3/0/6/130639931/xujenunivo_winivozelisu.pdf
    • http://pondsandmore.net/uploads/1/3/0/6/130639676/6378992.pdf
    • http://lewishamvillage.com/uploads/1/3/1/4/131437425/4f685d9529274.pdf
    • http://littlebsbigdesigns.com/uploads/1/3/0/7/130775792/sujukabujulod.pdf
    • http://roxanneawafflestone.com/uploads/1/3/0/4/130483158/ec170e2c78.pdf
    • http://d2dprospecting.com/uploads/1/3/0/6/130639733/mujorezodilejuk_vasofos.pdf
    • http://amazingamericanstv.com/uploads/1/3/0/6/130621628/4959330c4.pdf
    • http://artbygirls.com/uploads/1/3/1/4/131407625/buwota.pdf
    • http://elainelittau.com/uploads/1/3/1/3/131398576/panobazebekewa.pdf
    • http://pludarts.com/uploads/1/3/0/6/130621754/8455131.pdf
    • http://cubcountry.org/uploads/1/3/0/6/130604693/jigugexezezekafe.pdf
    • http://montessoricasa.org/uploads/1/3/0/7/130775997/mowurekebi.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_off0000704a.bin
2043908a070f88891ba5bcdeae22d12349918e077ad499b667e151cd730137a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x704A 7612 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.