Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d17259872f01866…

MALICIOUS

PDF

37.2 KB Created: 2020-08-19 00:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6532e5c44d0a381f7a13dabfa4c58ebe SHA-1: 7c3a9ba8f3edf9c7d8619e55210aae6c4f947ac0 SHA-256: 3d17259872f01866e9db25972492c02a0aea1ddcf71d680c58ce81bf49a0a27c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=european+resuscitation+council+2018+guidelines', is flagged as a malicious redirector. The document body, though partially corrupted, appears to be a lure related to 'European resuscitation council 2018 guidelines', suggesting a social engineering tactic to entice users to click the malicious links.

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=european+resuscitation+council+2018+guidelines
    • http://warupeluf.squamishdancecentre.com/uploads/1/3/1/4/131453134/juxagifidizu.pdf
    • http://madusuf.katiecarrington.com/uploads/1/3/1/4/131406717/wagefofokenefosodag.pdf
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/magomaxidisamefu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/gofominikulomebegiviwo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/cisco_spa508g_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/3011/7542/files/edit_my_file_online.pdf
    • https://cdn.shopify.com/s/files/1/0440/4684/4054/files/mamujusebekeridoxera.pdf
    • https://cdn.shopify.com/s/files/1/0429/6930/1151/files/91828402394.pdf
    • https://cdn.shopify.com/s/files/1/0432/8285/8144/files/64338830534.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/81845369978.pdf
    • https://cdn.shopify.com/s/files/1/0430/9945/5642/files/xowumagobatis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdf
    • https://cdn.shopify.com/s/files/1/0434/3300/1126/files/fe_eit_sample_examinations.pdf
    • https://cdn.shopify.com/s/files/1/0434/5446/4165/files/pitoniniletodopasojog.pdf
    • https://cdn.shopify.com/s/files/1/0439/2468/4955/files/ibps_po_exam_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/78584508853.pdf
    • https://cdn.shopify.com/s/files/1/0431/1220/2389/files/vutiwovodinoleve.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_off00005191.bin
8c081819d303e58864d721a4d7a28083a32b14532dafcbaa29325a8a89873565
pdf-font-stream PDF embedded font (sfnt) at offset 0x5191 5720 bytes
font_01_sfnt_off0000651b.bin
3b38a9678d59624f139d6fcf95c74e02bfd512c7e07913b5b1d69735ec7c342f
pdf-font-stream PDF embedded font (sfnt) at offset 0x651B 10024 bytes