Malicious PDF — malware analysis report

Static analysis result for SHA-256 3520fb9c49b253ef…

MALICIOUS

PDF

40.4 KB Created: 2020-09-20 14:15:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cc400b99d57f33585e97cafddb897c0 SHA-1: 6db1550e99dfd3dbeea0a70a5bf75cd595d7b856 SHA-256: 3520fb9c49b253ef6a51044e27cedf09ae02946c704129e1100ca31f6f460673
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a known malicious redirector at https://ttraff.me/wix?keyword=baby+alive+food+packet+printables. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure the user to this malicious site. The presence of numerous other PDF links indicates a link farm strategy to improve search engine ranking for the lure.

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.me/wix?keyword=baby+alive+food+packet+printables
    • http://files.americanreferralconnection.com/uploads/1/3/1/0/131070374/vavenidajuvofam.pdf
    • http://files.professorplayground.com/uploads/1/3/1/4/131437736/ec6232715c169a8.pdf
    • http://files.tragermoves.com/uploads/1/3/1/4/131438741/8563894.pdf
    • http://mowubok.bikemanbikerentalkeywest.com/uploads/1/3/1/4/131453723/e3812f82f7.pdf
    • https://b4182253-bb97-40c3-8e51-80f16874f999.filesusr.com/ugd/e2b09b_b4f2b80601ea477c86fd79a6aae6b00d.pdf?index=true
    • https://47812fdf-48d6-4520-a160-2721be2cd82e.filesusr.com/ugd/ff3115_e89641d081304c2f8c6335d01485364a.pdf?index=true
    • https://c9bd7e45-0221-40a6-aa15-99718bfd1958.filesusr.com/ugd/409ca8_9b75a1d1b87343a78c5d0d97b4756a35.pdf?index=true
    • https://3c3b9d8c-711e-4946-8374-2b1f0c36b772.filesusr.com/ugd/10e3af_0d244154c400451b8cc2c5ccf498b320.pdf?index=true
    • https://302d40f6-2415-41ff-966f-817f27d72263.filesusr.com/ugd/a13bc2_541218873ccb4881812750d2d3a491ae.pdf?index=true
    • https://66b8d736-0f89-4d5b-a6bb-99badf2b39bd.filesusr.com/ugd/23924c_be0b93b7ac9546bdb97455b0b9475e05.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/8220/9698/files/employment_certificate_format_in_ms_word.pdf
    • https://cdn.shopify.com/s/files/1/0430/2703/8371/files/construction_safety_investigation_report.pdf
    • https://cdn.shopify.com/s/files/1/0432/0008/6180/files/gomujuvokafaxadototixa.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_off00005fde.bin
b24934a6481cd4d39ca8c07083cf8349cf3fcaff8aafff0b0540c0d524fd91eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDE 5564 bytes
font_01_sfnt_off000072e5.bin
6010d403dbe3cd60bdcc60bcb2412a063fab1ba13f4279568f19bc726ca22947		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E5 9820 bytes

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