Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee3bef99eb175dc8…

MALICIOUS

PDF

45.9 KB Created: 2020-08-14 20:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc2cc60c2c5e85566a3fe0eef3144bb1 SHA-1: de70adff10d5e5a8f755a598412f973e0141e24e SHA-256: ee3bef99eb175dc8b1464469205c0fdb8f14f1356bff8b30ddb27bfe17fc9be9
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to shopify domains hosting other PDFs, and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to charitable contributions and tax forms, suggesting a lure. The primary malicious URL is https://ttraff.com/pify?keyword=charitable+contributions+federal+deduction+tax+form, which is likely used to redirect the user to further malicious content. The presence of a callback lure heuristic also suggests a social engineering attempt.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=charitable+contributions+federal+deduction+tax+form
    • http://gafemogos.mediaroommarketing.com/uploads/1/3/0/9/130969061/komulim_fukaxodom.pdf
    • http://files.jasoncoxacupuncture.com/uploads/1/3/2/7/132712093/a80de7c350e895e.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/kezunu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8773/8533/files/96795944140.pdf
    • https://cdn.shopify.com/s/files/1/0454/8090/2806/files/26114052334.pdf
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/debonet.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/80994768534.pdf
    • https://cdn.shopify.com/s/files/1/0437/1274/1525/files/bsc_math_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/5042/5765/files/69045338063.pdf
    • https://cdn.shopify.com/s/files/1/0435/4985/1811/files/rezewodupavulogosowape.pdf
    • https://cdn.shopify.com/s/files/1/0436/5749/4686/files/cana_caballo_de_troya_9.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_off000073a1.bin
8607259512bb1f046057e46e2559df438720560ff3b72d68713e51cdd4190c2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A1 5376 bytes
font_01_sfnt_off000085b8.bin
f6d26dfad7cedba9082d18e58b258aa59d06ffd1a9b84a448137bd0bc7bbec36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B8 10744 bytes

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