Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b2643fa6569a74…

MALICIOUS

PDF

43.7 KB Created: 2020-08-30 09:14:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e63eb82f412973ed41a0b4e6301507e SHA-1: ad376a20f8d2033fb5cb2e4815f92beaf01cc7d3 SHA-256: 88b2643fa6569a742124e4cbf149efe02b06622e1845e4bf2e11500fbb39bb62
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with a heuristic identifying it as a PDF link farm. One of the primary links points to a known malicious redirector, ttraff.com, which is likely used to distribute further malicious content. The document body contains garbled text but includes the URL that triggered the malicious redirector heuristic.

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/wix?keyword=the+hill+have+eyes+300mb
    • https://cdn.shopify.com/s/files/1/0435/3975/9255/files/convert_tif_to.pdf
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/zebegikalovapixitofi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0954/0257/files/photography_parental_consent_form_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/tezajosivarugivipuralep.pdf
    • https://cdn.shopify.com/s/files/1/0459/1756/9173/files/sedixaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/9162/3074/files/vodlocker_suicide_squad.pdf
    • https://cdn.shopify.com/s/files/1/0435/0679/4656/files/binomial_theorem_mcq.pdf
    • https://cdn.shopify.com/s/files/1/0435/2950/2874/files/71208243983.pdf
    • https://static.usrfiles.com/ugd/77d535_b4784b325f774f6b987abbe942444454.pdf
    • https://static.usrfiles.com/ugd/b8c837_acc9a0ef34ef4775a595f7283c0cb497.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_35898af8e83e4ece8caf6a0ed9b5a7bb.pdf
    • https://static.usrfiles.com/ugd/3f80ec_66783a98cf9b423cb75a50cae9f14f98.pdf
    • https://static.usrfiles.com/ugd/18f527_5bb087d933a547878c44f35674ab88f5.pdf
    • https://cdn.shopify.com/s/files/1/0428/5726/7359/files/fusafokavika.pdf
    • https://cdn.shopify.com/s/files/1/0438/0858/7938/files/fikotarufawizasadog.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_off00006a03.bin
a5a854ea0e3ac4ef8c919a25786f70ec4394aabb2c27bb2e66f0acd872200ef7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A03 5388 bytes
font_01_sfnt_off00007c41.bin
4dc76942588b7f296568ec336cbe368b32eeaa026f8d2fc46a3fccba43f2d7aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C41 11432 bytes

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