Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa34ba708149ebe7…

MALICIOUS

PDF

55.9 KB Created: 2020-08-17 05:53:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 108acd9aa31dc79f6f17c460245bcc43 SHA-1: 716c07e83814947a93cf50459d3fb02de1289c4a SHA-256: fa34ba708149ebe7cdf758f5eddd826537d3c46e98afdf36e1a5a86be1c6bdf8
168 Risk Score

Malware Insights

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

The PDF contains a lure impersonating an insurance claim form, designed to trick users into clicking malicious links. One such link, 'https://ttraff.cc/pify?keyword=sri+lanka+insurance+agrahara+claim+form', is identified as a malicious redirector. The document also hosts a large number of external PDF links, many pointing to Shopify, suggesting a link farm for SEO poisoning or distribution.

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.cc/pify?keyword=sri+lanka+insurance+agrahara+claim+form
    • http://files.kbsail.org/uploads/1/3/1/4/131407549/sawureko.pdf
    • http://files.tdobbsart.com/uploads/1/3/1/3/131379266/tomexerake.pdf
    • https://cdn.shopify.com/s/files/1/0436/3337/7440/files/15966045954.pdf
    • https://cdn.shopify.com/s/files/1/0434/8392/2585/files/css_text_glow.pdf
    • https://cdn.shopify.com/s/files/1/0437/6880/7586/files/beasts_of_no_nation_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/statistics_for_the_life_sciences.pdf
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/one_two_three_four_songs.pdf
    • https://cdn.shopify.com/s/files/1/0438/2828/1506/files/1157390063.pdf
    • https://cdn.shopify.com/s/files/1/0440/6103/2598/files/76071431250.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/5674235496.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/common_core_math_worksheets_3rd_grade.pdf
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/66906221899.pdf
    • https://cdn.shopify.com/s/files/1/0434/3581/9173/files/52532849053.pdf
    • https://cdn.shopify.com/s/files/1/0433/6861/1998/files/34300153451.pdf
    • https://cdn.shopify.com/s/files/1/0431/3710/6087/files/90858744227.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_off00008d40.bin
ff30d1be12893e9dd3cfa25c96eb98e8f82b5d860f0a1831e1e36bf276ebc086
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D40 5464 bytes
font_01_sfnt_off00009f9b.bin
802eea198795ac04ead6b16f891527531a18a886e7d15ce1a273ff8de9a3fb37
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9B 16472 bytes