Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fdec04eeabb7e8d…

MALICIOUS

PDF

34.3 KB Created: 2020-08-13 04:50:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f406911e8e9bd574371de390634b675 SHA-1: 846b3117a11e02154207303777395f7246f29a45 SHA-256: 3fdec04eeabb7e8da046bf4d39a63b505f7e459a3acb2152fa2da6d17651ef76
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a mass of external links, a common technique for SEO poisoning and redirecting users to malicious sites. One of the embedded URLs, 'https://ttraff.com/wb?keyword=schneider%20electric%20plc%20programming%20pdf', is flagged as a malicious redirector. The document body, though heavily corrupted, appears to contain keywords related to 'Schneider electric plc programming pdf', suggesting a lure to attract users interested in technical documentation.

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/wb?keyword=schneider%20electric%20plc%20programming%20pdf
    • http://fukor.hfchristianchurch.org/uploads/1/3/1/4/131406086/xokakikurulaw.pdf
    • http://files.berlinartclass.com/uploads/1/3/1/4/131453684/7741492.pdf
    • http://files.alwayslovedal.com/uploads/1/3/1/1/131164479/gojototevumeken_nividujudajeman.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/ff8_weapon_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/pomot.pdf
    • https://cdn.shopify.com/s/files/1/0440/3747/2421/files/6393294139.pdf
    • https://cdn.shopify.com/s/files/1/0440/8328/2070/files/25792517346.pdf
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/xakumekanon.pdf
    • https://cdn.shopify.com/s/files/1/0435/3051/8682/files/47591732730.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/89651642643.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/55386671972.pdf
    • https://cdn.shopify.com/s/files/1/0440/4084/7510/files/physical_science_textbook_grade_6.pdf
    • https://cdn.shopify.com/s/files/1/0428/1827/3446/files/acids_in_fruits.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/memorandum_and_articles_of_association_of_a_company.pdf
    • https://cdn.shopify.com/s/files/1/0433/4849/2438/files/understanding_life_science_grade_12_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/sumuwusafej.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_off0000497e.bin
57e7593ab3e3ac6b10ca5d8073bb352a118ac04eec7ff973cfa1a848c35132f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x497E 5496 bytes
font_01_sfnt_off00005bf1.bin
ce7070a404fc07e9773503d7b4cfd820e074b7d874ee22b24714abbf952b2dae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF1 9532 bytes

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