Malicious PDF — malware analysis report

Static analysis result for SHA-256 e055117d89e5adc6…

MALICIOUS

PDF

44.6 KB Created: 2020-09-21 00:42:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe138e7fdad1a98a9251e83b877882fc SHA-1: ebfda757f7afa4fc807de4c19ab2039ecee43c63 SHA-256: e055117d89e5adc6ca6083356e162d8a833fa8ac0d1474a72c848d201d03c41d
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 domains associated with link farms and redirectors. One critical heuristic firing indicates a direct link to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL https://ttraff.club/wix?keyword=pontiac+casting+numbers+on+cylinder+head, which is also flagged as malicious. This suggests a phishing or scam attempt leveraging SEO techniques to distribute 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.club/wix?keyword=pontiac+casting+numbers+on+cylinder+head
    • http://wovidel.caleyenglish.com/uploads/1/3/1/4/131438008/2f8bb5e0b4c1b7f.pdf
    • http://fevulak.chrishenkaline.com/uploads/1/3/2/6/132682076/4077284.pdf
    • http://kekite.ourprimeproperty.org/uploads/1/3/1/1/131164250/tunodizo_zorerorupufafo.pdf
    • http://sadugawef.jamaicavibez.com/uploads/1/3/1/8/131856643/d2d5935b.pdf
    • http://fizefima.elyscouture.com/uploads/1/3/0/7/130776219/8ebefd5.pdf
    • http://rurisu.interculturalathletics.com/uploads/1/3/2/8/132814476/towetelax.pdf
    • https://cdn.shopify.com/s/files/1/0436/8505/2566/files/jejulotal.pdf
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/93364638091.pdf
    • https://cdn.shopify.com/s/files/1/0435/9133/6099/files/tawozibekirotiwirubanire.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9189/files/laguardia_community_college_calendar_2016.pdf
    • https://cdn.shopify.com/s/files/1/0433/7516/5594/files/graphs_of_trig_functions_more_practice_answers.pdf
    • https://1214c764-ac1e-48f6-bce7-dd2c7e17f256.filesusr.com/ugd/cacfd7_eb4fdafac71744748f098332edd9b6ec.pdf?index=true
    • https://d0fb4abc-7742-4771-b23e-18ab240d032d.filesusr.com/ugd/3225da_c4a5192aa9f14be6a0607af9862a2ed2.pdf?index=true
    • https://dbecec99-3cf7-4ae1-97c5-db2bea1ac819.filesusr.com/ugd/76aeb6_b22b1c2a96014f24abb49088987b2b64.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000576d.bin
909d3a7797a0e50da04989cc744178b88445369b0837c4316a68934743f71624
pdf-font-stream PDF embedded font (sfnt) at offset 0x576D 5480 bytes
font_01_sfnt_off000069d5.bin
5cd620428068ec7d800b39f363ae0ba2a08ff27a9743126d1426411f15c9de19
pdf-font-stream PDF embedded font (sfnt) at offset 0x69D5 13812 bytes
font_02_sfnt_off00009558.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x9558 4324 bytes