Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b86c971d133b10…

MALICIOUS

PDF

108.6 KB Created: 2020-08-30 10:20:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03a1491ebbc942e747c2a6c4e9d5a86a SHA-1: 8b65c0e368692876266b828c291fd94b4b85d8d9 SHA-256: 05b86c971d133b10277ef31e2a4fc3a928ac915ad6d12c1e48731c1f8c57e8c2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which are part of a link farm designed to appear as legitimate search results for books. One prominent link, 'https://ttraff.com/wix?keyword=molecular+biology+of+the+cell+the+pr', redirects to a known malicious domain. The document's structure and the presence of many external links suggest a phishing or scam attempt, likely to drive traffic to malicious infrastructure.

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/wix?keyword=molecular+biology+of+the+cell+the+pr
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/5982/2243/files/17704801811.pdf
    • https://cdn.shopify.com/s/files/1/0459/7055/5047/files/20290933947.pdf
    • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/mimisikosovamomemog.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/vakuzivuvi.pdf
    • https://static.usrfiles.com/ugd/837d34_3d006e10837643eca0041f1bb19e7fb6.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4f49d37fb594763bca7091127031944.pdf
    • https://static.usrfiles.com/ugd/b8c837_b45adb783ca347aa864882c616feae88.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_954b2f1f54054ad29ba2fea4af25e539.pdf
    • https://static.usrfiles.com/ugd/6da380_dbc270d357c84b139a053ef2de7c6d97.pdf
    • https://cdn.shopify.com/s/files/1/0439/0102/6459/files/vejazapofefomo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0079/0170/files/79614916973.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/88072901250.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/gibot.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/junepuwuwemugaxoxerexeraf.pdf
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/watch_batman_v_superman_online_for_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/6310/5953/files/97543089136.pdf
    • https://cdn.shopify.com/s/files/1/0429/6232/1567/files/color_schemes_art_worksheet.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017012.bin
75145c44faffa682c2671640a85b2711f58daaea491be84b8987632e4311749b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17012 5348 bytes
font_01_sfnt_off00018252.bin
0aedb52240104ab22266e4641327d03576ec4ec20dc142e9c57d009421de46a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18252 10380 bytes

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