Malicious PDF — malware analysis report

Static analysis result for SHA-256 2843c5697303951b…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 05:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b09a94fe7a9039110a64d60e5fd7d3a SHA-1: 2a44ad017ea232e1a139793e053c237f36b10845 SHA-256: 2843c5697303951b7dc7c277f799fac59e682582e2408e6e5dca89b7fa5def4d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=live+tv+apk++free'. This URL is presented within the document body, suggesting a social engineering lure to trick users into downloading an APK. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many of which point to Shopify domains hosting PDF files, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the primary attack vector appears to be the malicious redirector link.

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=live+tv+apk++free
    • http://megasasi.empoweringdesign.net/uploads/1/3/2/7/132740214/c5b1da236.pdf
    • http://files.connallyband.com/uploads/1/3/1/8/131856381/koguwoxixude.pdf
    • http://vuwageno.seansabastian.com/uploads/1/3/1/6/131606345/be2ed5d3fa5.pdf
    • https://cdn.shopify.com/s/files/1/0434/1330/7541/files/tatalaksana_bronkopneumonia_pada_anak.pdf
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/vatuxikamuzajura.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/8290778449.pdf
    • https://cdn.shopify.com/s/files/1/0433/9659/5870/files/45374507832.pdf
    • https://cdn.shopify.com/s/files/1/0433/5353/8710/files/leadership_is_an_art_book_report.pdf
    • https://cdn.shopify.com/s/files/1/0438/8729/6680/files/best_lightweight_reader_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0435/0777/7702/files/roruvakoma.pdf
    • https://cdn.shopify.com/s/files/1/0438/3421/2509/files/cauchy_schwarz_inequality_proof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0122/files/servsafe_manager_study_guide_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9736/files/dibogazumikolinosuwakoja.pdf
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/form_sf-_15.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_off000062db.bin
dc7f445833abce15272a8bf9585fd1360f184f4a4b88bad754f8919496b08edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62DB 4752 bytes
font_01_sfnt_off00007327.bin
67d5fcac37a4ec2262ddecbd750b567e46cefc7bd2fb7f888949122062ad3e46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7327 10156 bytes

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