Malicious PDF — malware analysis report

Static analysis result for SHA-256 a715d3ada1dea9df…

MALICIOUS

PDF

42.9 KB Created: 2020-03-29 07:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 953642c40517ad841be7723da7145ba2 SHA-1: 01c59973e697d20f0b1b9c97319f366839e8764c SHA-256: a715d3ada1dea9df6e02f54c9720a7dbf880916813de3adab001c4047607af91
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized and point to other PDF files. This suggests a link farm or SEO poisoning attack designed to drive traffic to potentially malicious content. The primary URL, http://74-123-78-122.mgwnet.com/uploads/1/3/0/7/130776822/130776822.html#sacrt+light+rail+fare, is likely the initial lure.

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://74-123-78-122.mgwnet.com/uploads/1/3/0/7/130776822/130776822.html#sacrt+light+rail+fare
    • http://www.ddhaughtinc.com/uploads/1/3/0/2/130287504/195c60a87fb2b6b.pdf
    • http://agapepawslabradoodles.com/uploads/1/3/0/7/130775277/dokeguwu_puwiki_susoteb_vokogukasubeni.pdf
    • http://charlidrawz.com/uploads/1/3/0/7/130776836/garoredeji-mutoxetixuxufem-razup.pdf
    • http://team-ingwe.com/uploads/1/3/0/5/130588512/5c469e4f.pdf
    • http://www.kosmickittensrescue.com/uploads/1/3/0/8/130874084/9106891.pdf
    • http://bakingco.nl/uploads/1/3/0/5/130542770/7e1207b6.pdf
    • http://www.ezmantel.com/uploads/1/3/0/7/130739549/fazedikemo.pdf
    • http://gvglobalconsultingllc.com/uploads/1/3/0/3/130313180/6833449.pdf
    • http://globalidnews.com/uploads/1/3/0/5/130546657/sejavuwopiguzi_duruzoluli_zobapivobikupo_lupipaniren.pdf
    • http://zealministries4usvets.org/uploads/1/3/0/2/130289441/7591087.pdf
    • http://solaracine.com/uploads/1/3/1/3/131379550/dusolebudedozuf.pdf
    • http://whybrandingfails.com/uploads/1/3/0/5/130541552/zenomev.pdf
    • http://invigorise.com/uploads/1/3/0/6/130603785/kinex-vupiwafiv-tifaluxokoxis-sikonu.pdf
    • http://the-wordsmith-academy.com/uploads/1/3/0/4/130488914/ab78eedfe81ac1.pdf
    • http://bareheartdiaries.com/uploads/1/3/0/5/130550774/7cc12162c1d.pdf
    • http://dukewesley.com/uploads/1/3/1/1/131163653/3678320.pdf
    • http://www.hendrix-painting.com/uploads/1/3/0/5/130551153/fexol-viwozevel-nokedal.pdf
    • http://www.homeschoolsocial.org/uploads/1/3/0/4/130478648/423785aa5bf32.pdf
    • http://safealert.com/uploads/1/3/0/5/130546209/zujinag.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_off00007e79.bin
3e785502da184cddced2dccaf4767edfe199a782a0bea55a7af528a04101e16b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E79 8256 bytes

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