Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ff8b3f8fb6400f…

MALICIOUS

PDF

39.3 KB Created: 2020-08-18 23:31:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee6bf56b2aa6a94d5d1b3b3e78c60a1e SHA-1: 8c45ca841a4f20567cba9fa6cd5c75fe2a67e06c SHA-256: 45ff8b3f8fb6400fabdd4a2984719b2b76c8bbe555a298349c174e961fc4abce
142 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as a car installment payment agreement. The document also includes a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The presence of a callback lure further supports a phishing or scam-related attack pattern. No scripts were extracted, but the primary attack vector appears to be user interaction with the malicious link.

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.cc/pify?keyword=car+installment+payment+agreement+template
    • http://wudamu.mkwritingsolutions.co.uk/uploads/1/3/1/3/131398489/ad70b.pdf
    • http://favimu.lillyandvideography.com/uploads/1/3/1/4/131453119/4976775.pdf
    • http://files.blockandboardpdx.com/uploads/1/3/1/4/131437724/biwavovigur-mezojiwex-tagojibiziwezi.pdf
    • http://files.ltlfitness.net/uploads/1/3/0/7/130775735/0910086e.pdf
    • https://cdn.shopify.com/s/files/1/0435/1059/5748/files/51672675436.pdf
    • https://cdn.shopify.com/s/files/1/0434/4276/5991/files/35629208234.pdf
    • https://cdn.shopify.com/s/files/1/0432/1466/7934/files/61100446126.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/777_aleister_crowley_portugues.pdf
    • https://cdn.shopify.com/s/files/1/0437/6395/7918/files/get_featured_image_url.pdf
    • https://cdn.shopify.com/s/files/1/0431/8973/1479/files/begumipepir.pdf
    • https://cdn.shopify.com/s/files/1/0437/2326/0058/files/63029761078.pdf
    • https://cdn.shopify.com/s/files/1/0431/3779/4204/files/vw_caravelle_t5_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/6451/7023/files/50631456119.pdf
    • https://cdn.shopify.com/s/files/1/0430/0475/6121/files/84563121936.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/74246210686.pdf
    • https://cdn.shopify.com/s/files/1/0436/5330/0377/files/diluvubeso.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_off000059f7.bin
02bdf3f2599eb0499cd8dbe04dc89dd2e3f1d6f7407d98709526f82e99b3f647
pdf-font-stream PDF embedded font (sfnt) at offset 0x59F7 5144 bytes
font_01_sfnt_off00006b6b.bin
5fa3270c17340eed1030014487b20d83ebf59293aecb5171eb1e61796374c2fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B6B 10748 bytes