Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab06cd20ddc62a86…

MALICIOUS

PDF

58.3 KB Created: 2020-08-21 14:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f9cf9b2a22f184e2641623c99f4f953 SHA-1: fa98d24fe29f37102fb23dd9d0fd6d7575a9d883 SHA-256: ab06cd20ddc62a860efdd6d72602b07860b20b1482315dc0b46971e8b7648058
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, https://ttraff.ru/pify?keyword=acquisition+and+retention+of+new+information, is flagged as a known malicious redirector. This indicates the document is designed to lure users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, and the document body is heavily obfuscated.

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.ru/pify?keyword=acquisition+and+retention+of+new+information
    • http://fuparije.ulcel.org/uploads/1/3/1/3/131379485/dutevejeriza.pdf
    • http://files.jamkatzent.com/uploads/1/3/1/8/131859370/kixerofo_mokub_daziworurix.pdf
    • http://files.energys.ca/uploads/1/3/1/6/131637876/kokesozadobiva_nivizumamorixe_betexipuzidili_fidefawowowop.pdf
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/zenenoli.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/42509386608.pdf
    • https://cdn.shopify.com/s/files/1/0429/1998/5319/files/siruzomevenis.pdf
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/8614322088.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vekedexixerokasadoboma.pdf
    • https://cdn.shopify.com/s/files/1/0430/7599/3764/files/dolevilofagitojudugin.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7650/files/adobe_reader_installer_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0435/8465/1423/files/virginia_state_inspection_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/7712/4764/files/gosulalafamigitup.pdf
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/23486263813.pdf
    • https://cdn.shopify.com/s/files/1/0431/1010/5255/files/suggestion_and_autosuggestion.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_off0000a660.bin
b9abfbea76e147d553f52dbaa77fb2c65afbc08474af0298886e944d7cb983f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA660 5340 bytes
font_01_sfnt_off0000b881.bin
37b44fe9158285ac3a3d7ff4f4c5c4a2a5e34162e7da7912befa99846f02c059		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB881 10392 bytes

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