Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec0976e740cd6230…

MALICIOUS

PDF

41.7 KB Created: 2020-08-04 10:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb6f36629d6d41e19d853059e3311c99 SHA-1: dc843ac7b40b33bf6dc6f613e8c8a72dcf44f339 SHA-256: ec0976e740cd623008357aa08eca2fd7d7f83dd7b84277cac5712ec811da4406
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=bari+italy+tourist+map+pdf'. This, combined with a large number of embedded links to external PDFs, suggests a link farm or redirection scheme designed to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/pify?keyword=bari+italy+tourist+map+pdf
    • http://wabuj.jedburghgs.com/uploads/1/3/0/7/130776760/sezifalekakenax.pdf
    • http://files.stmichaelukrainiancatholicbaltimore.org/uploads/1/3/1/6/131637853/vetadiwopuje.pdf
    • http://rakogo.natashasinel.com/uploads/1/3/0/7/130775607/6774063.pdf
    • http://files.corrigangear.com/uploads/1/3/0/7/130775484/542839.pdf
    • http://kejiziw.jameshuneycutt.biz/uploads/1/3/2/6/132680813/mepudekuvowoxom-zorof-lasipeb-kubutifeg.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/93215410249.pdf
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/denulamibuzegox.pdf
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/hemoglobin_formation.pdf
    • https://cdn.shopify.com/s/files/1/0434/1239/0038/files/82413608911.pdf
    • https://cdn.shopify.com/s/files/1/0433/2974/9145/files/.pdf
    • https://cdn.shopify.com/s/files/1/0437/6946/2935/files/dell_os_recovery_tool.pdf
    • https://cdn.shopify.com/s/files/1/0433/5003/2549/files/vefin.pdf
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/24107155565.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/vapetopofawoji.pdf
    • https://cdn.shopify.com/s/files/1/0434/6488/4384/files/convert_from_mov_to_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0432/7404/3556/files/salvation_army_donation_guide_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/jojusifolujirekenidom.pdf
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/vigorofuzorix.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/sogizisurilume.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_off000066b6.bin
7f893bc839145b1eaaa47b3ccae88f3a98b4ef9546c9a55fb007ed05e667c3f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x66B6 5336 bytes
font_01_sfnt_off000078d2.bin
3c633852dfb3461d73f2b5f20c8d197cf71e279ec69f0e6b74e5e8b88957c72f
pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 9752 bytes