Malicious PDF — malware analysis report

Static analysis result for SHA-256 a679d9717eb8a0ae…

MALICIOUS

PDF

46.3 KB Created: 2020-08-05 17:45:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42fae1302aa23f5390f2e61c72f6f1b6 SHA-1: 42d9f71a877c6c09efc8a11bf0ca2707b880a91a SHA-256: a679d9717eb8a0ae7207395b211888e367247b26869676171fd73d07088802ed
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to funnel users to malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cantilever+beam+problems+and+solutions+pdf, which is likely used to redirect users to a further malicious destination.

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.ru/pify?keyword=cantilever+beam+problems+and+solutions+pdf
    • http://files.topshelfbonsaipots.co.uk/uploads/1/3/1/3/131380848/8483372.pdf
    • http://files.sargentirrigation.com/uploads/1/3/2/3/132303219/zuzuxugenopo.pdf
    • http://jojele.1eam.com/uploads/1/3/1/0/131070152/vuxirozube_waliju_semokewiku.pdf
    • http://files.anotheroctave.org/uploads/1/3/0/8/130874210/838342.pdf
    • https://cdn.shopify.com/s/files/1/0436/4396/1504/files/givisewovurolobixonipij.pdf
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/kasidedirek.pdf
    • https://cdn.shopify.com/s/files/1/0432/6260/7520/files/jowalorawegif.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/woleribiwapidumufexi.pdf
    • https://cdn.shopify.com/s/files/1/0437/1536/2984/files/70449928575.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdf
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/pafiwigotifim.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/zipolubi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/punuvejevofitipepimadawe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5400/files/max_function_python.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2982/files/dewixizetujob.pdf
    • https://cdn.shopify.com/s/files/1/0439/2583/1835/files/99957065622.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_off00006e7e.bin
fb862730b9ac417cbab1ef6f88b7efc11775454e5eabc5ea6274616db4ff9f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7E 5292 bytes
font_01_sfnt_off00008066.bin
dfc5c3186a1573b8e193bf2fdf433cc523ab7d101c5ce8dd2a4906c06e259640		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8066 14000 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.