Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab3d7a1fe20a148…

MALICIOUS

PDF

40.0 KB Created: 2020-08-25 05:11:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d69d4a26e7ef0714bc96aedf7965e29 SHA-1: 89a8ce1326571bff39fa1d95d4362e2a76029c73 SHA-256: dab3d7a1fe20a148f4ffe71ac34799445bbc3b1ee9f9d3912c1c4a117b40cd78
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link directs to a known malicious redirector at ttraff.ru. The presence of a visual download button lure further supports a malicious intent. The document body contains garbled text but includes the malicious URL, suggesting the PDF is designed to trick users into clicking malicious links for phishing or malware delivery.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=mango+capsa+susun+new+version
    • http://dozunajek.kira-marie-mccullough.com/uploads/1/3/1/4/131453558/kilabo.pdf
    • http://fawafizo.godfrey-lee.org/uploads/1/3/1/4/131407995/salutebemew-rufisutimararez-walibefeju.pdf
    • http://files.shawnvictor.net/uploads/1/3/0/7/130738984/bf0dee.pdf
    • https://cdn.shopify.com/s/files/1/0432/0342/8515/files/bescherelle_la_grammaire_pour_tous_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/7384/6952/files/64605460442.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1369814796.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/adaptation_level_theory.pdf
    • https://cdn.shopify.com/s/files/1/0432/4737/0402/files/kuregap.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/15014847819.pdf
    • https://cdn.shopify.com/s/files/1/0430/6767/0689/files/committee_meeting_notice_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/7217/6796/files/55516341311.pdf
    • https://cdn.shopify.com/s/files/1/0433/9066/4860/files/wusumoxozuwonuloxi.pdf
    • https://cdn.shopify.com/s/files/1/0438/7926/8520/files/1526827148.pdf
    • https://cdn.shopify.com/s/files/1/0435/1698/5508/files/88275078352.pdf
    • https://cdn.shopify.com/s/files/1/0438/7880/9755/files/moose_jaw_fall_recreation_guide_2018.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_off00005d13.bin
a371e8a33bc740299df8124d7ad9a658eefb1df7cd03ee1ff459b39165105c0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D13 5228 bytes
font_01_sfnt_off00006f07.bin
deaf633d4d3dbc84d58092e48ebfc7338570fe4cdfabf022cc62e05d21962517
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F07 10680 bytes