Malicious PDF — malware analysis report

Static analysis result for SHA-256 e336df9ba2bc85f6…

MALICIOUS

PDF

39.8 KB Created: 2020-06-09 00:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 834d59584141bb568a53d8084eea4867 SHA-1: 70330395cbfaa52351c00a6271e32f3752f5c04d SHA-256: e336df9ba2bc85f656a6ee5e01660e996b54274ec0f9d2e8108ffac7fe23fbe1
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are numerically or generically named and hosted on unrelated domains, indicating a link farm or SEO poisoning tactic. The primary embedded URI points to a page on smartchoicetaxservice.net, suggesting a lure for phishing or credential harvesting. No scripts were extracted, but the structure strongly implies a malicious intent to redirect users to potentially harmful content.

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://smartchoicetaxservice.net/uploads/1/3/1/0/131071231/131071231.html#en+la+carta%252C+%25C2%25BFcu%25C3%25A1l+es+el+significado+de+la+frase+un+escenario+fant%25C3%25A1stico+%2528l%25C3%25ADnea+4%2529%253F
    • http://extraconstruction.net/uploads/1/3/1/3/131384024/6469538.pdf
    • http://60daystohappiness.com/uploads/1/3/0/6/130603841/gaberolisiw_paxowem_mogexuxokunexi_kulumadewodud.pdf
    • http://dorememusictherapy.com/uploads/1/3/1/8/131856374/fifonulaxo.pdf
    • http://extrasteptutor.com/uploads/1/3/1/4/131453081/f05d3adc3a.pdf
    • http://miarussellartist.com/uploads/1/3/0/4/130488503/tawipat.pdf
    • http://inspirationfit.com/uploads/1/3/1/6/131637163/233cf62eb38b5.pdf
    • http://root.vocalsinworship.uk/uploads/1/3/1/6/131606155/15ab89cd20cac.pdf
    • http://easlittleblessings.com/uploads/1/3/0/2/130274076/dumakow.pdf
    • http://mail.thecbhsa.org/uploads/1/3/0/9/130969508/vedipipokasamaguxem.pdf
    • http://youbangtaobaowangwangqunfaruanjian.thesurge.cc/uploads/1/3/0/8/130874668/lujowunano-gojesolowusalit-riraluki-gaxedeton.pdf
    • http://jacobfolayan-cole.com/uploads/1/3/1/1/131164266/902561.pdf
    • http://mail.beavsworld.com/uploads/1/3/0/8/130814258/9fa60b6b.pdf
    • http://glorythief.net/uploads/1/3/0/6/130639682/kovepopuzufiv_gepar_ninikixage_widuniraw.pdf
    • https://moxiritaf.files.wordpress.com/2020/06/81742102548.pdf
    • https://jemebofika.files.wordpress.com/2020/06/suxowuxavululaju.pdf
    • https://xolupola.files.wordpress.com/2020/06/73002536592.pdf
    • https://xilogip.files.wordpress.com/2020/06/tefofegavaxexanobufeki.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_off00006b28.bin
1c2fc2b7ef5388be65d5ab9c1704a4c89b49e041496552aa42e656576805c046		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B28 11100 bytes

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