Malicious PDF — malware analysis report

Static analysis result for SHA-256 d32d577bf0523dfe…

MALICIOUS

PDF

33.3 KB Created: 2020-08-07 05:57:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90caf366e4dfc83d71cfce81273693d0 SHA-1: fc89eabc4aaa6b08dfeaa60a4585236b4c1e7e7f SHA-256: d32d577bf0523dfe59158cfebf916f8433c9864fe28765946016fa9ade1e2c2d
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of embedded links, many of which point to known malicious redirectors or suspicious domains. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is designed to lure users to external sites. The primary malicious URL identified is https://ttraff.com/pify?keyword=5.+s%25C4%25B1n%25C4%25B1f+b%25C3%25B6lme+i%25C5%259Flemi+testi+pdf, which is likely used to redirect users to a final malicious destination.

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=5.+s%25C4%25B1n%25C4%25B1f+b%25C3%25B6lme+i%25C5%259Flemi+testi+pdf
    • http://joban.player2reviews.com/uploads/1/3/1/3/131383791/588b72668bb.pdf
    • http://files.alegraloewenstein.com/uploads/1/3/1/4/131407424/6140492.pdf
    • http://files.newyorkautoschool.com/uploads/1/3/1/4/131406202/7848f863db91.pdf
    • http://files.arnoldcameraclub.com/uploads/1/3/1/4/131407138/weremisos-kuwodegixa-tojetefuwesa.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/kejedelaxonanew.pdf
    • https://cdn.shopify.com/s/files/1/0434/1438/8888/files/nexikasifuxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/jinokekegufaruduxuzutara.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/forumarepimetewazo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8291/6767/files/89276284731.pdf
    • https://cdn.shopify.com/s/files/1/0440/8904/9238/files/pinez.pdf
    • https://cdn.shopify.com/s/files/1/0429/4397/1484/files/love_to_worship_you_chords.pdf
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/lokejuxezojofuzivibamom.pdf
    • https://cdn.shopify.com/s/files/1/0432/3989/9304/files/mamilexilemude.pdf
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/95832588346.pdf
    • https://cdn.shopify.com/s/files/1/0438/4758/1856/files/waste_management_project_proposal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51098187394.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044aa.bin
abf2fe986f2ffe6fc7ef5caa68cbc7b4300af31c5c4b3eb9e3bf5b27abacb5d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x44AA 5500 bytes
font_01_sfnt_off00005697.bin
670541a010cbdf4eeff93710022236a0d9953735cbdbbd20dbfa57741c98cd8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5697 9852 bytes