Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab21b0f911f26f8…

MALICIOUS

PDF

40.7 KB Created: 2020-07-31 21:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c4fb6ebfe2ac5a391bee80efb388d08 SHA-1: b516adef985c7149495508396768862dc8700590 SHA-256: fab21b0f911f26f804af4887d0ffafcca906beac4f320f2e66c9408787ade30d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects to a malicious domain, ttraff.com, which is flagged as a known malicious redirector. This indicates a phishing or scam attempt designed to redirect users to malicious infrastructure.

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/pify?keyword=so4+oxidation+number
    • http://files.marketingemailnewsletter.us/uploads/1/3/1/0/131070394/87c6a33.pdf
    • http://files.boundlessfarmstead.com/uploads/1/3/1/6/131606492/5809037.pdf
    • http://files.solarmoonpress.com/uploads/1/3/1/8/131856317/mapes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1039/files/a_flexible_binomial_option_pricing_model.pdf
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/92628626636.pdf
    • https://cdn.shopify.com/s/files/1/0437/2457/0792/files/70667493376.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66048758492.pdf
    • https://cdn.shopify.com/s/files/1/0433/3826/8830/files/82544080240.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/73140546348.pdf
    • https://cdn.shopify.com/s/files/1/0440/2996/8534/files/72598285739.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/jolivumewipele.pdf
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/74741045259.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0432/3855/5805/files/vezalawubobifakabununamo.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_off00006119.bin
b3e27901262cf75c8d01813917292b4014ebfe040667b9f64bbc3ba081cba2f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6119 5160 bytes
font_01_sfnt_off00007299.bin
504a1a755608c3b159b172e7454ef4faffe7088227def3471044612ed75af1c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7299 10516 bytes

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