Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcdec0c46cbf176f…

MALICIOUS

PDF

33.8 KB Created: 2020-08-16 13:28:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1391299345dcbfa6ee5c577f4e2e92 SHA-1: 3f1b815ce0f9a62ec2fde69c884d873206a03d4b SHA-256: bcdec0c46cbf176f7adb4f278303a47d7e22a5ed99dc421392a6f19d48f54511
120 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous PDF files hosted on Shopify and other domains, with a primary redirector at ttraff.com. The document body, though heavily obfuscated, contains the text 'Action plan template deped' and the malicious redirector URL, suggesting a lure to disguise the malicious intent. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or social engineering attack.

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=action+plan+template+deped
    • http://files.shaynaleecoaching.com/uploads/1/3/2/3/132303010/femiwapat.pdf
    • https://cdn.shopify.com/s/files/1/0434/4587/8941/files/jeregemawowufevibuzat.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/58241906472.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/nuzisuteli.pdf
    • https://cdn.shopify.com/s/files/1/0431/7646/0445/files/kemanifulomi.pdf
    • https://cdn.shopify.com/s/files/1/0440/3141/0326/files/lakotevumupupezidewunewif.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/cemu_botw_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/99906366856.pdf
    • https://cdn.shopify.com/s/files/1/0435/4637/8404/files/gafarufumegumawukinidatof.pdf
    • https://cdn.shopify.com/s/files/1/0428/6038/0327/files/movemilulojedokifoxabi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7741/0724/files/html5_blank_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/8136/6693/files/91736474329.pdf
    • https://cdn.shopify.com/s/files/1/0428/3626/3078/files/69428833145.pdf
    • https://cdn.shopify.com/s/files/1/0430/9005/1221/files/65891767271.pdf
    • https://cdn.shopify.com/s/files/1/0435/4624/7332/files/51838785203.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_off000047df.bin
8c41e3f6f07070ed01d2d738c75c2682811b5847dfc662b0b6b6ea047b99b6c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47DF 4936 bytes
font_01_sfnt_off00005886.bin
1c1d887cd17f72fa94bfb81fad83921d5f0f8993520df61d99820878fbf95c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5886 9908 bytes

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