Malicious PDF — malware analysis report

Static analysis result for SHA-256 573a141584155f15…

MALICIOUS

PDF

44.2 KB Created: 2020-08-26 06:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3aecc33a25e6196d884dd0dd5e5ec1cf SHA-1: 06f4296df8ed04dc55b9091d648cc50f4fd02fcd SHA-256: 573a141584155f1586f93bff06b617eea66dd561305312f4aa47426daa773b90
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive document body that mimics a search result for "Magoosh gre videos free" to entice users to click on embedded links. One of the primary links, `https://ttraff.com/pify?keyword=magoosh+gre+videos+free`, is identified as a malicious redirector. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various domains, many of which are hosted on Shopify. No scripts were extracted from this sample.

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=magoosh+gre+videos+free
    • http://kimapaxup.bbt-livonia.com/uploads/1/3/2/3/132303354/18d0dca34.pdf
    • http://files.youngchaelee.com/uploads/1/3/2/6/132681992/4623363.pdf
    • http://basal.saansw.com/uploads/1/3/0/8/130814328/gepiwimegexav_telizirugorefez_kanidavak_jenujuwukotatag.pdf
    • http://seluzo.genawave.com/uploads/1/3/1/3/131398177/detanu_kavawape_zopenuri.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/99258924153.pdf
    • https://cdn.shopify.com/s/files/1/0433/7506/7294/files/mixufarumuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/5180/3039/files/jidemedek.pdf
    • https://cdn.shopify.com/s/files/1/0435/8609/3214/files/immunity_to_change_map_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xaxigeruver.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/10144438585.pdf
    • https://cdn.shopify.com/s/files/1/0428/7909/0855/files/simple_green_smoothie_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/long_armed_squid_creature_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/1766/5701/files/bokozazumobem.pdf
    • https://cdn.shopify.com/s/files/1/0430/8254/7361/files/96319139696.pdf
    • https://cdn.shopify.com/s/files/1/0428/6060/9692/files/81262865647.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_off00006f91.bin
5ba6612fc220d0126002d5f71629e854080faac7b34b071d9bfd7c2711862eea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F91 5204 bytes
font_01_sfnt_off00008143.bin
4ca50c7083be02aeb527f8800599567c300ab973a4cdabb53c522cca60aa12ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8143 10148 bytes

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