Malicious PDF — malware analysis report

Static analysis result for SHA-256 c077d6d936c2a111…

MALICIOUS

PDF

43.2 KB Created: 2020-04-02 23:49:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3d9f128126b0386d5158474c6fe5673f SHA-1: ffcbdf9b925d235956c9194b5c2f057ceb8d3f36 SHA-256: c077d6d936c2a111c4ac2c95af13463a41833d5c9754acde615b246a1def2b1a
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm for SEO manipulation or to distribute malicious content. The document body, though partially corrupted, contains references to a 'swtor mako conversation guide' and the authoring application 'wkhtmltopdf', indicating a potential lure. The primary heuristic firing, 'PDF_SEO_LINK_FARM', strongly suggests the document's purpose is to drive traffic to a network of related websites, likely for malicious advertising 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://lennoxweb.com/uploads/1/3/0/6/130620207/130620207.html#swtor+mako+conversation+guide
    • http://flowproirrigation.com/uploads/1/3/0/8/130873872/9992350.pdf
    • http://achyuraa.net/uploads/1/3/0/2/130272905/d27ba36.pdf
    • http://teambyrne.net/uploads/1/3/0/4/130483614/15f51ee392f86.pdf
    • http://klbhc.com/uploads/1/3/0/7/130775583/db36be2d9.pdf
    • http://rw94comic.com/uploads/1/3/1/3/131398406/5066283.pdf
    • http://greenbase.kiwi/uploads/1/3/0/2/130270971/pikukar.pdf
    • http://claycityimperialregiment.com/uploads/1/3/0/9/130969428/606a8168ab86163.pdf
    • http://polefitnesspuertorico.com/uploads/1/3/0/3/130379522/towafa.pdf
    • http://zenon-and-co.com/uploads/1/3/0/8/130874086/4e81dd4b7e86894.pdf
    • http://clearsignsinterpreting.com/uploads/1/3/0/5/130588773/8813461.pdf
    • http://jokerthief.vip/uploads/1/3/0/8/130874615/zinewejubamut-nadim-varazedukemesu.pdf
    • http://busybeespediatrictherapy.com/uploads/1/3/0/9/130969403/7853520.pdf
    • http://dpartphoto.com/uploads/1/3/0/7/130775012/lonolotisikiliputuke.pdf
    • http://webmail.stemstil.nl/uploads/1/3/0/3/130324270/kedabopurenud.pdf
    • http://medicine4rebels.com/uploads/1/3/0/2/130289186/798a755.pdf
    • http://trenchlawfare.com/uploads/1/3/0/6/130639254/fc1b286.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_off00007f1f.bin
374949ab1950dc6a85ef993351aed19a0299c91a1484f824f9b706c40bb44182		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1F 8488 bytes

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