Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1d2e3bafd4b6b9…

MALICIOUS

PDF

41.7 KB Created: 2020-08-02 07:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77e6c119fb1a9620863ccf3027c44909 SHA-1: a0358593208c584d35e6b451fd9dfd108999c702 SHA-256: dd1d2e3bafd4b6b9494ca7a84cf3f039175585e296f93ea61b75c5e38b9980aa
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link (https://ttraff.cc/pify?keyword=best+kotor+2+mods), suggesting the document is designed to redirect users to malicious sites. The presence of numerous other PDF links, many hosted on Shopify, further supports the idea of a link farm used for SEO manipulation or to obscure the final malicious destination. No scripts were extracted from this sample.

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=best+kotor+2+mods
    • http://files.handbuiltvans.com/uploads/1/3/0/9/130969681/tewepimaj_kiwomemam.pdf
    • http://files.wisteria-cottage.com/uploads/1/3/1/4/131438784/teratizewezudali.pdf
    • http://files.parentlednetwork.org/uploads/1/3/0/8/130813781/6a072.pdf
    • http://files.remedysuppliesllc.com/uploads/1/3/1/4/131453022/8882996.pdf
    • http://files.stevenstackplaywright.com/uploads/1/3/1/4/131453574/vejogogisogira.pdf
    • https://cdn.shopify.com/s/files/1/0433/0287/9387/files/java_iterate_through_hashmap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/penovimi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8315/3056/files/39239458496.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7269/files/dapikisuvepinemifotum.pdf
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/pink_sober_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0432/4484/7266/files/crafted_2d_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/60233972239.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/18568970049.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/tavexejejejipu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0323/9840/files/heap_implementation_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0433/2643/9582/files/12646521616.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/pojonijogez.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9037/files/cub_cadet_st_100.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_off000067dd.bin
341f9e3075441b6988b3290613f5e5693a0017a0c829201ffcf5f11b69ff112e
pdf-font-stream PDF embedded font (sfnt) at offset 0x67DD 4976 bytes
font_01_sfnt_off000078ba.bin
1f0113efea3973f28d0685ef92743fc8b3aa6f0e53c5dbcb92b9ac6dc14f5ffa
pdf-font-stream PDF embedded font (sfnt) at offset 0x78BA 9776 bytes