Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f58534e535092da…

MALICIOUS

PDF

45.7 KB Created: 2020-08-09 02:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83ebc26dd4fc608cd8b207c17a183609 SHA-1: 923f2136099cae8236bf764b6b5a9a68cbd978d8 SHA-256: 9f58534e535092da7723a4db3d112d173f3e9b1f77840c86732d38b4d7949fee
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to shopify.com domains and one critical link to a known malicious redirector at ttraff.cc. The document body contains obfuscated text and the URL 'https://ttraff.cc/pify?keyword=abbyy+pdf+transformer+one2up', suggesting a lure for software. The primary attack pattern involves redirecting the user to malicious infrastructure via a deceptive link within the document.

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.cc/pify?keyword=abbyy+pdf+transformer+one2up
    • http://files.americansemi.com/uploads/1/3/1/3/131398366/tuxulunelaze-kukepaz-duravas-zovibezo.pdf
    • http://files.jsshjournal.com/uploads/1/3/1/0/131070151/600349.pdf
    • http://files.lesaint-louiscoiffure.com/uploads/1/3/1/1/131164350/wunopotujexuso.pdf
    • http://zizegidi.laurieann-ranger25.com/uploads/1/3/1/0/131070420/2882e8446.pdf
    • http://files.herplanetearth.com/uploads/1/3/0/9/130969637/bf049099567e72.pdf
    • https://cdn.shopify.com/s/files/1/0434/8107/1782/files/2839763067.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/zozagovubakik.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/rufakegalavozitugosepo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/44684104646.pdf
    • https://cdn.shopify.com/s/files/1/0433/5930/5880/files/kodasamamezozedu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/bikini_body_guide_workouts.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/63779735318.pdf
    • https://cdn.shopify.com/s/files/1/0433/5720/8731/files/arduino_uno_projects_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42228357160.pdf
    • https://cdn.shopify.com/s/files/1/0438/0898/1152/files/45346586352.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/44834660673.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_off00006130.bin
811e8594e0c2d85eb4f698b4e182799f0440a4efbde31f1fc75fdd01ccb3d2c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 5352 bytes
font_01_sfnt_off0000733f.bin
7131b601f752cea73662c98796f53693e772d65bb2b4e2a7c16f892cd6ef7c85
pdf-font-stream PDF embedded font (sfnt) at offset 0x733F 15648 bytes
font_02_sfnt_off00009c18.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C18 4324 bytes