Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebaf43881a8764c5…

MALICIOUS

PDF

37.1 KB Created: 2020-09-19 03:31:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 867f84c484beed02164d2bead8429a04 SHA-1: 5e0a61fa27ca5ca632228ea47735e76064ba6e69 SHA-256: ebaf43881a8764c5395b682200ef06784e367e834061362ce03b9a7826a9b0e0
120 Risk Score

Malware Insights

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

The PDF file contains a link farm with 18 external PDF links, many of which point to Shopify. One of these links, however, redirects to a known malicious infrastructure at 'ttraff.club'. The document body, though heavily obfuscated, also contains the malicious URL. This suggests a social engineering tactic to direct users to malicious content.

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.club/wix?keyword=return+man+2+mud+bowl
    • http://rafupovok.furahanaturalcare.com/uploads/1/3/0/7/130776054/aa825b76e.pdf
    • http://files.writespacehouston.org/uploads/1/3/0/8/130874125/5368769.pdf
    • http://files.singingsabercats.com/uploads/1/3/1/3/131379591/1972471.pdf
    • http://bovol.whatsjordaneaton.com/uploads/1/3/2/6/132695375/vawesimoka-sovelarare-taxodaroxizisog-dudujaw.pdf
    • http://dovogixa.aoh-patrickryandivision.org/uploads/1/3/1/4/131406226/eae909810e.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4407/files/econometric_models_techniques_and_applications.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/kalaikathir_tamil_news_paper_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/4460/8932/files/jimi_hendrix_voodoo_child_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0435/4641/1162/files/23341489817.pdf
    • https://cdn.shopify.com/s/files/1/0432/0329/7437/files/the_ranch_reddit.pdf
    • https://12785b55-997d-4137-99f8-77c825fa4b38.filesusr.com/ugd/33c377_b9af73ebd01e42e995f09cf10c18d87d.pdf?index=true
    • https://b910e59c-42e6-4785-a373-ad5bfea879bb.filesusr.com/ugd/ef7b09_fddb4d29b2d740078bb5e4fdd23f9b46.pdf?index=true
    • https://ffb20391-a16f-45fa-a5bc-bdc5629fa512.filesusr.com/ugd/299074_f9d27b7ca31b4b6196be8811bd2630af.pdf?index=true
    • https://7edcaecb-9e6a-4b39-bc16-82d5e2c09b94.filesusr.com/ugd/22bf55_b5f997731ebe49e0a0a40718e5c92f08.pdf?index=true
    • https://268f30c9-f555-4943-96e2-d474b8a4e188.filesusr.com/ugd/04c368_bd4b7553cf92439780d2126d26773a92.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/12404943145.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1939/files/14120131933.pdf
    • https://cdn.shopify.com/s/files/1/0435/2878/1973/files/45380248267.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_off00004ead.bin
3ff36e5378f339281c36aa362f3c04a2456bbffc095ac2592ab9f417351140c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAD 5164 bytes
font_01_sfnt_off00006034.bin
00ccfc6d9772fe3bb88a1af2cec055ec1376608dd619aefb1401461dc33de27c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6034 14104 bytes