Malicious PDF — malware analysis report

Static analysis result for SHA-256 42d08a4c864b24f5…

MALICIOUS

PDF

43.4 KB Created: 2020-08-18 14:12:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5771a4875bd15592197bdf8a20311c10 SHA-1: 8a97767a2a374df49131f17171ec31dc154e4142 SHA-256: 42d08a4c864b24f58015dcbd34f16fc57d67d41c19de1536922f1b47e9ef644e
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a critical link to a known malicious redirector at `https://ttraff.ru/pify?keyword=double+exposure+photoshop+template+free`. This suggests the document is designed to lure users to malicious infrastructure under the guise of providing free templates. The document body, though heavily obfuscated, also contains this URL and numerous other links hosted on `cdn.shopify.com` and other domains, likely part of a link farm to improve search engine ranking for the malicious content.

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=double+exposure+photoshop+template+free
    • http://files.lythamstannesartcollection.org/uploads/1/3/1/3/131398455/dotemeledil.pdf
    • http://files.heartxoutfitters.com/uploads/1/3/0/7/130775543/a3fa5b1.pdf
    • http://pozubi.stevepolitesg.com/uploads/1/3/1/3/131384013/jawofeda-fuditoware-porevinosupe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6661/files/demand_planning_in_supply_chain_management.pdf
    • https://cdn.shopify.com/s/files/1/0434/1805/8901/files/anti_aging_skin_care_reviews_consumer_reports.pdf
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/woputupovim.pdf
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/xuwenime.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/55880691899.pdf
    • https://cdn.shopify.com/s/files/1/0433/8181/7495/files/one_drive_live.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/23795027543.pdf
    • https://cdn.shopify.com/s/files/1/0429/0890/9734/files/noxiwevadusejore.pdf
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/65100712521.pdf
    • https://cdn.shopify.com/s/files/1/0435/0427/1524/files/40101955036.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/maxuzojimike.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_off00006c0d.bin
0dd731ae19a56ca055cc147b63751a688fab0febe79a11d1243f35a1cabbc6f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0D 5348 bytes
font_01_sfnt_off00007e1d.bin
4e89494c490f21ec3bfe6863fe5fef32dbca1e4186523141ad0fd267e172f9e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1D 10192 bytes

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