Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f230dd9664c91c6…

MALICIOUS

PDF

42.3 KB Created: 2020-08-31 08:13:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec34390a9b809d6f8786668c91aba2dd SHA-1: 95bdff3123367d92377d95568afa4695bf3d23fd SHA-256: 7f230dd9664c91c639ad49761e573ebe0156c2662ee0fe9e395ac7464a925bd4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This URL is presented within the document body, disguised as a product review, to entice users to click. The presence of a large number of external PDF links further suggests a link farm or SEO manipulation tactic, likely to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/wix?keyword=bose+music+monitor+review In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_09a1505ba1864445ae4780b5e3ee6aca.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ec3edfbd5ac74a0994f2828b8d9f8f64.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0d2908_99ebcf225e75482a87c0ec3957694d33.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_3242fbb5d0d34c3583bbbcd71ecc4925.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0dc2bb375e19499ba24623f6837afb66.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6217/1550/files/44985019843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5329/2440/files/51311288592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/denuvus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4542/8120/files/succession_planning_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/foxopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/close_up_pics_level_11_all_answers.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/26481d_49cb6f0812244f47b36c70028e8df222.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3b7182_c900be74f0864da99a36996db679fd4c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_9d3e9abb2b6948a4a38ce6d4ba5f8abb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/61f964_23cb424922174e00861acc1973b39c3c.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c4.bin
e206b68a635f25062ce98591d299fe770b588fca60fc63731c2d76ca22870ae7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C4 4904 bytes
font_01_sfnt_off00007870.bin
1f32ee3457cef223fc3d7c8bdd10ef73caa38ff85eb5d7338a34658c013c4af3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7870 10564 bytes

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