Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f79fca850372b2…

MALICIOUS

PDF

41.4 KB Created: 2020-08-19 09:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 152e23ea945357c03a39193b2957ca41 SHA-1: 2bed57dcfa8a1d7debeecc63a8303102a01a63a9 SHA-256: f0f79fca850372b2bee452156762598ae8dd9c864caf7bf89b21fee7c991cf3d
152 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.com, under the guise of a 'manchester michelin guide' entry. This suggests a phishing or social engineering attack aimed at redirecting users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination.

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.com/pify?keyword=manchester+michelin+guide
    • http://files.rootsnutritionmassage.com/uploads/1/3/1/3/131378985/767a00.pdf
    • http://dofaximod.twaldzzz.com/uploads/1/3/2/6/132696111/f6b2f81.pdf
    • http://sawux.speakingofbirth.com/uploads/1/3/0/9/130969204/lokupunijuwuz-vufatafaja.pdf
    • http://dabowo.pearlriverkeeper.com/uploads/1/3/1/3/131383965/1022077.pdf
    • https://cdn.shopify.com/s/files/1/0437/5547/1006/files/pipogizuxiwiki.pdf
    • https://cdn.shopify.com/s/files/1/0428/3501/7884/files/17474107935.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7261/files/vaxijipebekomo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5353/0782/files/basel_2_ting_vit.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/4019217262.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/konaruxixuwogofelunixulub.pdf
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/fazoxevejaparafazosa.pdf
    • https://cdn.shopify.com/s/files/1/0437/8466/7297/files/anatomical_terms_of_movement.pdf
    • https://cdn.shopify.com/s/files/1/0438/4129/0397/files/49432297453.pdf
    • https://cdn.shopify.com/s/files/1/0437/4046/3255/files/cutting_edge_elementary_workbook_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/2530/0629/files/call_of_duty_4_for_computer.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_off00006405.bin
223d46dacf2b0d93484cc410e1a72b716fe969f69d2daa692bb6d36bdf9e29b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6405 5356 bytes
font_01_sfnt_off00007604.bin
7da31c295eabc97cfe3d03964fb476cf5e2005d71978825ad9f337b36ee6c51e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7604 10372 bytes