Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb7bef7f55f3278…

MALICIOUS

PDF

44.6 KB Created: 2020-08-26 13:04:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b9e8f3e32ffece16595191f775c6e91 SHA-1: c38ba2fe4f09264bdfcf48e8fe80a730b6feafea SHA-256: dbb7bef7f55f3278246b39f8a8598c1c5a22da74c5514a9159094f9f9d62387b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=pathfinder+inner+sea+world+guide+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same lure text and URLs. The primary intent appears to be directing users to malicious infrastructure under the guise of providing a PDF guide.

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=pathfinder+inner+sea+world+guide+pdf
    • http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdf
    • http://tojexoxo.aexist.nl/uploads/1/3/1/0/131070718/696b5eea9359b.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golalebilafofuzugetuvi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/35903761763.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/thermal_and_automobile_engineering_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4354/4488/files/oxford_bookworms_library_stage_6_jane_eyre.pdf
    • https://cdn.shopify.com/s/files/1/0432/9809/5262/files/82693989990.pdf
    • https://cdn.shopify.com/s/files/1/0432/7958/1352/files/watercolor_flower_brushes_photoshop_free.pdf
    • https://cdn.shopify.com/s/files/1/0462/3165/0453/files/72139946961.pdf
    • https://cdn.shopify.com/s/files/1/0460/1875/6767/files/4465323691.pdf
    • https://cdn.shopify.com/s/files/1/0428/1345/6550/files/inductive_deductive_reasoning_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/6735/6824/files/jotagagobe.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/monefujijuxa.pdf
    • https://cdn.shopify.com/s/files/1/0439/3939/7790/files/nubevan.pdf
    • https://cdn.shopify.com/s/files/1/0436/9717/6741/files/arcgis_beginner_tutorial.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_off00006f97.bin
a701b25df691c32c131435c66e2e5e0a9cddcbfa42ae6e4cf2e522f8a7a6dc0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F97 5396 bytes
font_01_sfnt_off000081fa.bin
ba354d68f2c5481648c383d171ee623d917267bb446a59470dd89db1a9a5d9dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x81FA 10420 bytes