Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaa167afb491878e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 23:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d3b3ea56bc43869c9d01e232128885c SHA-1: 95d7fe2393ee15b2ae24c28946f0f216686145cb SHA-256: aaa167afb491878e7ea2d566acee9799489582e5a17ac56e73a9528dd21acb0d
120 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=eddy+current+brake+system+report', is identified as a malicious redirector. The document's content, including the embedded URL, suggests a social engineering attempt to direct users to potentially harmful sites.

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.cc/pify?keyword=eddy+current+brake+system+report
    • http://files.carinekeenanmft.com/uploads/1/3/1/4/131483445/sumanemax_kepawinalula_veraw.pdf
    • http://sofedegub.shannondellmodelrailroad.org/uploads/1/3/1/4/131406710/8ab46dbe0f4.pdf
    • http://files.alittledevotion.net/uploads/1/3/0/9/130969151/waxuwapananud_zududeja_xituzatovege.pdf
    • http://nokegok.bucklesandbeads.com/uploads/1/3/0/8/130814328/5987729.pdf
    • http://xijomibef.embracechangehypnosis.com/uploads/1/3/2/6/132681231/15f1c0.pdf
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/la_flor_del_azafran_amarillo_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/converter_to_word_freeware_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/8618/3576/files/10460107108.pdf
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/kiwomigunowe.pdf
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/vofeboxujanegaseforax.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/55557226049.pdf
    • https://cdn.shopify.com/s/files/1/0435/9438/3522/files/62843658817.pdf
    • https://cdn.shopify.com/s/files/1/0452/8783/3762/files/cambridge_igcse_computer_science_workbook_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/3278/8648/files/uidai_aadhar_download_password.pdf
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/ff14_pool_of_tribute.pdf
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/pmbok_5th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/39137818659.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_off00006385.bin
a49b3dd701c556f7c72a8f6bbdb8a1f0e324dcf391ddbd22e94c57dd6ea9191d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6385 5452 bytes
font_01_sfnt_off000075f7.bin
378d7c6f9339f08d083f5393d8fd9a94a464186836d719db65748dbadbd4679e
pdf-font-stream PDF embedded font (sfnt) at offset 0x75F7 9832 bytes