Malicious PDF — malware analysis report

Static analysis result for SHA-256 e525dc02434361c3…

MALICIOUS

PDF

46.2 KB Created: 2020-08-07 05:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a34c1f4856ebeef23a2031f55155d96 SHA-1: ebd93d0ffae3e9edc656d93b0662f86619fe184e SHA-256: e525dc02434361c3507ca2b04492d4e6f1500424574e68972ad314fe7172b32f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.com/pify?keyword=que+es+el+analisis+foda+personal+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. No scripts were extracted, limiting the analysis of further stages.

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.com/pify?keyword=que+es+el+analisis+foda+personal+pdf
    • http://files.blackpeakstudio.com/uploads/1/3/2/6/132695832/zigapu.pdf
    • http://files.monsterboylives.com/uploads/1/3/1/4/131406885/xenipif-wafoxobes-reponubuzesij-movezopufiba.pdf
    • http://tenewatid.thepianogamer.net/uploads/1/3/0/8/130874104/57f22e290.pdf
    • http://files.sumrallorsak.com/uploads/1/3/1/8/131856125/7410601.pdf
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/dekenotadowojolujinoxire.pdf
    • https://cdn.shopify.com/s/files/1/0450/2038/1342/files/functional_skills_maths_level_1_past_papers.pdf
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/rigebuwovomagawofere.pdf
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/audi_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1651/files/65388744173.pdf
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/nelorofuxokumitinokumevu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4044/0471/files/kipatalino.pdf
    • https://cdn.shopify.com/s/files/1/0431/1462/7223/files/mezavotasosivijelezosezam.pdf
    • https://cdn.shopify.com/s/files/1/0430/9568/7328/files/novuwuladenazavubixuboxa.pdf
    • https://cdn.shopify.com/s/files/1/0437/4256/0407/files/wisorafap.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/viwojobokokuxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5938/8320/files/16102078610.pdf
    • https://cdn.shopify.com/s/files/1/0438/2038/4416/files/ntel_82562v_10_100_network.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066be.bin
2eeb71a5e39ad2cdbfb946c953dd41fa31f9fa513d80b47f19ed2b18bc5b140b
pdf-font-stream PDF embedded font (sfnt) at offset 0x66BE 4896 bytes
font_01_sfnt_off00007769.bin
6f3653aa40fe15ab0041b3c70a33f17dac978ad1ba53a287d8a77c912fe98dc5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7769 11308 bytes
font_02_sfnt_off00009c30.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C30 4324 bytes