Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba20a12f2a691e79…

MALICIOUS

PDF

52.0 KB Created: 2020-03-13 09:37:55 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 81745d0373b7ecadb9792faaae1a71de SHA-1: f06ddf6bf961fcfcc1760c3d21e5b3e4dae25d0b SHA-256: ba20a12f2a691e799f3d9eab131d42c5867f6cd527731d3117217818ae9448e0
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDF files on various domains. The document body text, while partially corrupted, includes a title related to 'contoh makalah aspek keperilakuan pada penganggaran modal' (example paper on behavioral aspects of capital budgeting), suggesting a lure to disguise the malicious intent. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, likely for SEO spam or to distribute malicious content. 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://host113.carmichaelnl.com/uploads/1/3/0/7/130775115/130775115.html#contoh+makalah+aspek+keperilakuan+pada+penganggaran+modal
    • http://nekimastrategies.com/uploads/1/3/0/7/130775845/2978834.pdf
    • http://www.betterjob.org/uploads/1/3/0/6/130639493/8868008.pdf
    • http://sweetpeaboutique.store/uploads/1/3/0/5/130542924/fedaziwej_giwisazok.pdf
    • http://conquercoffee.com/uploads/1/3/0/6/130620745/kubon.pdf
    • http://mta112.qualitynow.net/uploads/1/3/0/7/130739525/xunax-besoje-boferurixupe.pdf
    • http://bioquisa.net/uploads/1/3/0/5/130540525/29d32000730f.pdf
    • http://towndive.com/uploads/1/3/0/2/130272853/1757629.pdf
    • http://kitschorama.net/uploads/1/3/0/6/130620604/janukosod_keniruzinebaz_sifene.pdf
    • http://www.kornilenko.com/uploads/1/3/0/8/130873717/miratupabugubefefet.pdf
    • http://premiumrooms.com/uploads/1/3/0/6/130639544/95d101c9.pdf
    • http://cadoholdings.com/uploads/1/3/0/6/130621149/rumalag-visugakedikurex-tuvizuro.pdf
    • http://experteducationalsolutions.org/uploads/1/3/0/4/130476085/kilusinegoxoz.pdf
    • http://bernardoespinozacorredores.com/uploads/1/3/0/6/130620943/4980240.pdf
    • http://e1church.com/uploads/1/3/0/7/130776499/pokujaxojisot_kinazagepapulu.pdf
    • http://promotingactivecivicengagement.org/uploads/1/3/0/5/130588928/fanuzipazuj.pdf
    • http://residentiary.com/uploads/1/3/0/5/130588480/8652094.pdf
    • http://wenzhouduchang.f18.ebkf.org/uploads/1/3/0/5/130588951/b52425079b5.pdf
    • http://flintcaucus.com/uploads/1/3/0/5/130551777/73e3593cb.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_off0000a141.bin
828fdbeaf02d575b58acb8cc98a49344d188a9c5514f6795e801460ce9de8cc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA141 8432 bytes

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