Malicious PDF — malware analysis report

Static analysis result for SHA-256 be69249777ec595d…

MALICIOUS

PDF

41.6 KB Created: 2020-08-20 14:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51374a5bf901a5fc5d3bad09ce4fc74f SHA-1: 2344ee2fba1627184a4b9774cf030ea1f24d85a0 SHA-256: be69249777ec595d5ba38d1f4d62951b011e2485f185f350932144722ab8dbd1
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=continuous+improvement+project+plan+template'. It also exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same lure text and URLs. The primary attack pattern involves social engineering users into clicking a malicious link disguised as a useful template.

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=continuous+improvement+project+plan+template
    • http://mimotitek.simplyshoppingat808.com/uploads/1/3/0/7/130739777/e7de7e2e681226.pdf
    • https://cdn.shopify.com/s/files/1/0435/6666/1800/files/xoxusatadonufefaxeramosiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/diban.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/83865852316.pdf
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/97653992038.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5126/files/wajupekurol.pdf
    • https://cdn.shopify.com/s/files/1/0429/6274/7545/files/19072437544.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/sanborn_air_compressor.pdf
    • https://cdn.shopify.com/s/files/1/0452/4598/9021/files/food_diary_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/7035/7661/files/74833315205.pdf
    • https://cdn.shopify.com/s/files/1/0435/8560/1695/files/fezukurerosezab.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/5290464158.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/shakalaka_baby_song_telugu.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_off000064a4.bin
34b8953c326ea9132b92d548305fb5907f397a475da7c1d8dab3dff7613e535e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A4 5120 bytes
font_01_sfnt_off00007601.bin
5d7e927ed5afc6044cafe53d5ebebb187899d7efc80962c583699c884fda851b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7601 10296 bytes

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