Malicious PDF — malware analysis report

Static analysis result for SHA-256 aefc709e4df74024…

MALICIOUS

PDF

40.5 KB Created: 2020-08-13 22:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad459ed1cf6d3896746460ec9aba06c8 SHA-1: 7e12c1829fd37e2249b7e3b4f82bb81342c3aa54 SHA-256: aefc709e4df7402421e3d69279ee8f03c00e56247295d650b6f99ef314e7edfd
130 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector link to 'ttraff.com'. This suggests the document is designed to lure users into clicking the link, potentially leading to malware download or a phishing attempt. The presence of a visual download button further supports this malicious workflow.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=oxford+dictionary+english+english+tamil+free
    • http://files.dentacarekenosha.org/uploads/1/3/0/7/130739169/bopobanonizorez.pdf
    • http://files.redriverthunder.com/uploads/1/3/2/6/132681378/0c28a8ae535e9d.pdf
    • http://varuve.morningglorygarden.com/uploads/1/3/2/6/132695203/kuzejowugebu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0542/5310/files/35181678466.pdf
    • https://cdn.shopify.com/s/files/1/0432/8911/6836/files/jugunesafikolaweve.pdf
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/23933400087.pdf
    • https://cdn.shopify.com/s/files/1/0437/9426/8320/files/56441549745.pdf
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/28782719280.pdf
    • https://cdn.shopify.com/s/files/1/0433/9931/5619/files/viwekina.pdf
    • https://cdn.shopify.com/s/files/1/0433/7932/7130/files/26552027302.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4711/files/razewejilamogobafeduj.pdf
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/ibps_aptitude_questions_with_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6885/files/building_plans_with_dimensions.pdf
    • https://cdn.shopify.com/s/files/1/0444/2734/6086/files/27041525149.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_off000053cc.bin
7e3989b65228ff8b4edf53657443a438dd8188416be977922195f441ff103443		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CC 5632 bytes
font_01_sfnt_off000066d6.bin
fa6545ba7152ece4acac24f7c76d5ef3917d1f2000ff3d54133df4999a26d190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D6 13972 bytes

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