Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeb8987d5cd44129…

MALICIOUS

PDF

39.1 KB Created: 2020-08-22 18:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82972024cade377209bfdca38e878128 SHA-1: c6d607dcbc512ef1834b058fc6300751fa929afd SHA-256: aeb8987d5cd44129c59d7760dad19831e71563eb079b8b514f538cb34f94a4b7
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). The document body, though heavily obfuscated, contains the text 'Idiomatic expressions worksheets grade 8' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous links, including the malicious one, indicates a link farm or redirector strategy.

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=idiomatic+expressions+worksheets+grade+8
    • http://files.smokyvalleygarbage.com/uploads/1/3/1/0/131069887/8ee1c4.pdf
    • http://files.svmarsden.com/uploads/1/3/1/0/131070112/fatitebemisijovar.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/lavaxagejunozop.pdf
    • https://cdn.shopify.com/s/files/1/0432/5123/7032/files/titipex.pdf
    • https://cdn.shopify.com/s/files/1/0437/5448/7969/files/business_proposal_sample_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/9267/9582/files/raxekaruduk.pdf
    • https://cdn.shopify.com/s/files/1/0432/1558/5448/files/voot_app_colors_tv_for_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0435/5879/7471/files/66239773603.pdf
    • https://cdn.shopify.com/s/files/1/0440/1764/7766/files/masowatixibazor.pdf
    • https://cdn.shopify.com/s/files/1/0431/9028/8535/files/43102403040.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/gufoneb.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_off00005a72.bin
cf371d71bec5bac2977d586bd396a5c44f47fcbfb7cf533d5b342f77206905e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A72 5808 bytes
font_01_sfnt_off00006e22.bin
bd0b31b934d4dcf96b96c0c971418fdcac1eab3031664407eb3e2402ac67d20b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E22 9968 bytes

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