Malicious PDF — malware analysis report

Static analysis result for SHA-256 abde09999b6a2cc0…

MALICIOUS

PDF

42.2 KB Created: 2020-07-12 06:29:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bc59dca1737d213860237aee6277b50 SHA-1: cbac71e229647f6e93181acf2b3d49ca49713d15 SHA-256: abde09999b6a2cc018fc9022c93a7952478370cdcca7971fb4cfa3b0d0679b86
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed for SEO manipulation. One prominent link redirects to malicious infrastructure, suggesting a phishing or malware distribution attempt. The document body text, though partially corrupted, includes the phrase 'English speaking ebook pdf', which is likely a lure to entice users to click the malicious links.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.ru/pify?keyword=english+speaking+ebook+pdf
    • http://files.faithkingwriter.com/uploads/1/3/1/8/131871705/xagubemaxebipij_ruzebemib_donuwujunijaga_pumemudizomaf.pdf
    • http://files.drcoachkellipt.com/uploads/1/3/1/4/131409557/wusojiwo-pekimajej-gufor-pupabixazopaf.pdf
    • http://files.mjthomasphs.com/uploads/1/3/0/9/130969887/kumafisugiwuledoxe.pdf
    • http://files.d15mea.org/uploads/1/3/2/6/132682994/f8557281172780.pdf
    • http://files.northernnerd.com/uploads/1/3/1/3/131379680/wobifopedufinu_beruwedorelixif_kugepa_gakofus.pdf
    • http://files.planswpa.com/uploads/1/3/0/7/130739850/74ffde.pdf
    • http://files.thelearningfoundation-sl.org/uploads/1/3/1/8/131856068/wever_ponabuv_bejesip_jotemejapazugu.pdf
    • http://files.fluffdesignsco.com/uploads/1/3/1/3/131380251/diviturakatidojojo.pdf
    • http://files.lexisdoxies.com/uploads/1/3/1/4/131406049/zaxipepag.pdf
    • http://files.alanbirtwistle.com/uploads/1/3/1/3/131383664/werox_xapedewero_bemidituziv_zurer.pdf
    • https://rinaveb.files.wordpress.com/2020/07/xironomufolufilel.pdf
    • https://pesiziduzu.files.wordpress.com/2020/07/19792619729.pdf
    • https://wemekuwi606608615.files.wordpress.com/2020/07/50046720127.pdf
    • https://viketiba.files.wordpress.com/2020/07/34997963500.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/94099923579.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdf
    • https://cdn.shopify.com/s/files/1/0432/1984/5278/files/84833977861.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8385/files/rapawo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/selimapomoxevizugomef.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vizinedidobirefeguj.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2470/files/zunexikejepefunutababe.pdf
    • https://cdn.shopify.com/s/files/1/0430/9552/3485/files/27297370444.pdf
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/71243375044.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25696514874.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/
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/712433750

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006821.bin
c4527d448d40a130de36dabd9bc03a038acfea4de04670bdae185b2605392220		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6821 5076 bytes
font_01_sfnt_off0000794d.bin
f3061446baa600fa08843b33128c5cac06062538ca45c2adf1012f1da1586e0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794D 10108 bytes

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