Malicious PDF — malware analysis report

Static analysis result for SHA-256 12baa2e933722871…

MALICIOUS

PDF

41.0 KB Created: 2020-07-31 18:11:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b19454c8710135a361de55d3cb6a885 SHA-1: fb3dd7cc3146285c23b3d4433b6e335f0f5e0078 SHA-256: 12baa2e9337228713c1f070c49a13b1aec7d951d379d9e71f6829477beec644b
194 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, presenting a fake lottery or parcel delivery notification to trick the user into clicking a malicious link. The document body explicitly contains the URL https://ttraff.cc/pify?keyword=lorain+county+dog+license, which is flagged as a malicious redirector. Additionally, the PDF hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm used to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/pify?keyword=lorain+county+dog+license
    • http://files.mycraftydog.com/uploads/1/3/0/9/130968956/jajomamibifaf.pdf
    • http://files.minnesotadivingacademy.com/uploads/1/3/1/3/131383586/9280685.pdf
    • http://files.ctearlychildhood.org/uploads/1/3/1/4/131408103/b3621.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/6471/1575/files/55025568065.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8889/files/josamotuzeruxoxamiga.pdf
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/sosiwos.pdf
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/vubafinujewo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/solebevobolev.pdf
    • https://cdn.shopify.com/s/files/1/0428/8705/3475/files/83200696498.pdf
    • https://cdn.shopify.com/s/files/1/0434/2684/0737/files/23850889298.pdf
    • https://cdn.shopify.com/s/files/1/0436/7591/0294/files/kidiluju.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/zigozubulopedimerujosagol.pdf
    • https://cdn.shopify.com/s/files/1/0435/5486/5320/files/jazewewax.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/masafezobuxatu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/21313330629.pdf
    • https://cdn.shopify.com/s/files/1/0428/6044/5855/files/60357638386.pdf
    • https://cdn.shopify.com/s/files/1/0438/8323/3448/files/76702472402.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006076.bin
a3c976a4e9f57c250cb6ef3bffcc812aae6f6f55521a30171a0eacbd2050c840		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6076 5152 bytes
font_01_sfnt_off00007218.bin
caae000929f6076a1669f18d1cdbe03253c5b1ee39261e1669e26be194ca5cbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7218 10776 bytes

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