Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c7fde2f060f5bb5…

MALICIOUS

PDF

71.0 KB Created: 2020-08-31 13:20:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53205057f03fa217d742f8c40e4d3434 SHA-1: 6f0c2d1f9f399ac8b3981696e81d0a288ec10be0 SHA-256: 2c7fde2f060f5bb5b2535e053a1ff388abc0c8c79205ddfa4bedbf239df23805
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a link farm designed to manipulate search engine results, with one of the links pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting urgency, which is a common lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=corporate+value+of+enterprise+risk+m
    • https://cdn.shopify.com/s/files/1/0429/1906/7815/files/wozupuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/2494/9153/files/pipiraxu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/fosidewinakoxujujazixe.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/34952979627.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/gepawiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3198/files/deep_water_summary_and_question_answers.pdf
    • https://cdn.shopify.com/s/files/1/0435/9965/9176/files/temapero.pdf
    • https://cdn.shopify.com/s/files/1/0427/8150/7740/files/tuduxiludugixepupa.pdf
    • https://cdn.shopify.com/s/files/1/0439/1596/8680/files/adyashanti_books.pdf
    • https://cdn.shopify.com/s/files/1/0435/3828/4696/files/ibstock_brick_dimensions.pdf
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/baixar_visualizador_de_free.pdf
    • https://cdn.shopify.com/s/files/1/0447/5761/4741/files/acute_pancreatitis_surgery.pdf
    • https://cdn.shopify.com/s/files/1/0464/6214/0568/files/darkest_dungeon_grave_robber_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21511039237.pdf
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/90872426158.pdf
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/thinking_in_java_5th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7268/files/41844007686.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/kerisiki.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_off0000d8ac.bin
974e8ed2522424ceaa17b55136ed3724d59c4de733b5a6ed27e3ca344d4af0af
pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AC 5076 bytes
font_01_sfnt_off0000e9e3.bin
af1ecb04707ef61e06f207d4720ebffe808cc5138483611aa6025bf5fbab5975
pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E3 10792 bytes