Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c469118df684271…

MALICIOUS

PDF

51.1 KB Created: 2020-03-30 08:41:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d60a5336b6b9804a5f5a2e58b2a1d7d SHA-1: 23a151d7e4d1f315013b8827e57d091dd24b76ef SHA-256: 3c469118df684271243c9cba3240131aee763b44f9795c144a3ebeabd6a99181
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a large collection of other PDF documents hosted on various domains. The embedded URLs suggest a link farm or SEO manipulation tactic, potentially to distribute malicious content or engage in phishing. No scripts were extracted from this sample.

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://princess-crown.lucky1st.com/uploads/1/3/1/3/131379329/131379329.html#funes+el+memorioso+cuento+de+borges
    • http://beyond-social-media.com/uploads/1/3/0/5/130588290/bovojidatuva-xorisutawatowam-furipe-wulorubawib.pdf
    • http://swilliamsphotos.com/uploads/1/3/0/2/130288392/wejemug.pdf
    • http://parrysbakery.com/uploads/1/3/0/5/130588380/9f3678aa.pdf
    • http://ellandbe.com/uploads/1/3/0/7/130775191/3866878.pdf
    • http://discerningadvisor.com/uploads/1/3/0/3/130313145/zakixoxatu.pdf
    • http://limit2109.com/uploads/1/3/0/6/130620222/jagufub-xovejitiri-duzepadujaletap.pdf
    • http://myamericanbuilthomes.com/uploads/1/3/0/8/130874281/249c2b2edd4f.pdf
    • http://waitvision.com/uploads/1/3/0/3/130313086/66e5bfc472d9a.pdf
    • http://beclaims.com/uploads/1/3/0/2/130288830/1850016.pdf
    • http://lunchboxcafeny.com/uploads/1/3/0/7/130739126/kokoroxin.pdf
    • http://lesleyyx1.com/uploads/1/3/1/4/131408032/padugajematod.pdf
    • http://doggotrends.com/uploads/1/3/0/5/130588724/94f99.pdf
    • http://youngpeacemakerscamp.com/uploads/1/3/0/2/130271232/3700342.pdf
    • http://vets-code.org/uploads/1/3/0/5/130538870/dd9d2a3b0.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000950f.bin
4784bdd71526a3bf60d4b2faf672c03c7ad96f08a9adbd6042e40daeafa67915		 pdf-font-stream PDF embedded font (sfnt) at offset 0x950F 8504 bytes
font_01_sfnt_off0000b40d.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB40D 2616 bytes

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