Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2c9ba2d53c5ba55…

MALICIOUS

PDF

52.7 KB Created: 2020-08-09 19:25:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68147c96db2bda3747990d2e291871e6 SHA-1: 827994b2385f006e85be1b9743616efcc428cbab SHA-256: d2c9ba2d53c5ba557643406bb0be974e6493d2740f7ad97cf80d711d1b1328f4
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or SEO poisoning tactic to distribute malicious content. The document body, though heavily obfuscated, contains the malicious URL, indicating an attempt to lure users to a potentially harmful site.

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=activity+based+costing+kaplan+pdf
    • http://files.patriciacarriganartist.com/uploads/1/3/1/8/131871583/nitasafabim.pdf
    • http://files.shepardbusinesspark.com/uploads/1/3/1/4/131438299/b5148103.pdf
    • http://files.orangevalleycreations.com/uploads/1/3/1/3/131383510/bujofaketuwomidabej.pdf
    • http://migawuw.mitchellstdental.com/uploads/1/3/2/8/132814930/7007491.pdf
    • http://files.emmanoelleclark.com/uploads/1/3/2/7/132712006/04c9a7.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/kemimema.pdf
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/58711258284.pdf
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/nomuponabipewubex.pdf
    • https://cdn.shopify.com/s/files/1/0430/7002/9975/files/mp4_to_amv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zokiwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2118/8763/files/dujeginusenojazozapi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/nazazumijenolosozunuximo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/15775388307.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/pinebuvir.pdf
    • https://cdn.shopify.com/s/files/1/0429/3446/8774/files/17287033610.pdf
    • https://cdn.shopify.com/s/files/1/0438/6432/6309/files/design_and_build_contract.pdf
    • https://cdn.shopify.com/s/files/1/0435/0767/9387/files/detakof.pdf
    • https://cdn.shopify.com/s/files/1/0428/9354/1535/files/finiji.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081e0.bin
9c3ab690519226fc8978e9a94a2dd41e26b4aa654eeb611895abb2dbe071fc7c
pdf-font-stream PDF embedded font (sfnt) at offset 0x81E0 5372 bytes
font_01_sfnt_off00009441.bin
db5c0e0935efec072c98d2b6cd60887f7284a329f882337ec03bcb7c9ea3401c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9441 10300 bytes
font_02_sfnt_off0000b773.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xB773 4324 bytes