Malicious PDF — malware analysis report

Static analysis result for SHA-256 d561993e73d0ab8a…

MALICIOUS

PDF

42.8 KB Created: 2020-08-06 17:05:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe984ff95e4062d3123e3f19349debd9 SHA-1: 81fa7c2b3d0383925e164c56c610d68835925c22 SHA-256: d561993e73d0ab8a61606b12421ef92da0c69a727a28a9cfa1867fb92fc04805
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, designed to appear as legitimate search results for PDF documents. One prominent link, 'https://ttraff.ru/pify?keyword=theological+lexicon+of+the+new+testament+pdf', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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.ru/pify?keyword=theological+lexicon+of+the+new+testament+pdf
    • http://files.nowdrum.com/uploads/1/3/1/8/131856079/3822355.pdf
    • http://files.tileideal.com/uploads/1/3/2/7/132740399/lafip.pdf
    • http://files.rls-energynetwork.org/uploads/1/3/1/6/131636689/1252961.pdf
    • http://files.kevinpascalethomas.com/uploads/1/3/0/7/130738789/b17dc7ffc2adcae.pdf
    • https://cdn.shopify.com/s/files/1/0431/6345/1549/files/check_hosts_file.pdf
    • https://cdn.shopify.com/s/files/1/0438/9715/9832/files/pupajoba.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/lokigigupozonivifutu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/lspdfr_callouts_swat.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/great_expectations_study_guide_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1413/files/simple_javascript_countdown_timer.pdf
    • https://cdn.shopify.com/s/files/1/0432/4658/3976/files/45736178103.pdf
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/meeting_history_runescape.pdf
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/nugotiketubevowakafetam.pdf
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/91004976005.pdf
    • https://cdn.shopify.com/s/files/1/0434/0416/5285/files/tafopujumenes.pdf
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/toxala.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/46055649417.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5749/files/alter_ego_4_b2_guide_pdagogique.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_off000068fc.bin
454c22dfd3b3181d5156bb95c62fa611b323c068be69ff2f2c40eb2c966d017d
pdf-font-stream PDF embedded font (sfnt) at offset 0x68FC 5584 bytes
font_01_sfnt_off00007bf8.bin
01c617517cfd46fc7af7019e9e366cbacae10e6d6ef49052063938376b32cfb1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF8 10016 bytes