Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda0e32dd7990606…

MALICIOUS

PDF

59.3 KB Created: 2020-08-29 16:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdb540b8c2cf1e5ca37e83849cdbe823 SHA-1: 98ebe88b998dfba5be8159edeb94e5ca2720c45e SHA-256: bda0e32dd799060688beff197c4dda3ff33fa7c0b9d262657802621b9ea88963
160 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for a malicious redirector link and a PDF link farm, indicating it's designed to lead users to malicious sites. The document body, though heavily obfuscated, contains text related to a 'Sprint cup driver dies' and a URL that aligns with the advance-fee scam lure identified by heuristics. The presence of numerous PDF links suggests an attempt to obscure the final malicious destination.

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.
  • 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.
  • 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/wix?keyword=sprint+cup+driver+dies
    • https://cdn.shopify.com/s/files/1/0430/8818/3456/files/laboratory_report_14_skull_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/55392318375.pdf
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/astm_a36_14.pdf
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/tps_reports_meme.pdf
    • https://cdn.shopify.com/s/files/1/0431/5657/0274/files/48563909916.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/62418431803.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/aspire_plab_2_notes.pdf
    • https://static.usrfiles.com/ugd/b48b60_fc95c1a6b5774295bf91c7f15d9e93a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_b633df11384b4171b8969926aacb097b.pdf
    • https://static.usrfiles.com/ugd/b8c837_b65b6b364e914b7688130d7141cae64d.pdf
    • https://static.usrfiles.com/ugd/b8c837_4887ac9c92e94fc5863722ec49a8ce1b.pdf
    • https://cdn.shopify.com/s/files/1/0435/0646/6975/files/assembler_deux_fichier_en_un_seul.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/korean_calligraphy_font.pdf
    • https://cdn.shopify.com/s/files/1/0435/2317/8656/files/sekinapasukelizurusojof.pdf
    • https://cdn.shopify.com/s/files/1/0435/2904/4119/files/tosiwuvuronabofetego.pdf
    • https://cdn.shopify.com/s/files/1/0437/2650/4086/files/filaruxevizojegazifapof.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_off0000acac.bin
ae820d8275577488796eb90b0825b4b6594cf9d2cc256f29101d792ea40a5c14
pdf-font-stream PDF embedded font (sfnt) at offset 0xACAC 4988 bytes
font_01_sfnt_off0000bdb3.bin
88107d90d5107c5afb4fc7981f90a5ccad0b1aca64bb361d388cc96a90df2bab
pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB3 10228 bytes