Malicious PDF — malware analysis report

Static analysis result for SHA-256 55d30143264cabe7…

MALICIOUS

PDF

38.1 KB Created: 2020-08-18 23:38:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 776eece9e54ef615f05f0ddd9cea3c4e SHA-1: a6843b71f71cae2abeecbc8324e9d4d30191df09 SHA-256: 55d30143264cabe743f8508e70a735d99bd8aa5903b930cd226aab29741655a0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=lccap+guidebook+1'. Additionally, it exhibits a PDF link farm behavior, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to 'Lccap guidebook 1' and the malicious URL, reinforcing the lure. The primary intent appears to be directing users to malicious infrastructure.

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=lccap+guidebook+1
    • http://files.windowcleanersvictoria.com/uploads/1/3/2/6/132695360/xegemujoru-dunifapafido.pdf
    • http://porota.dolifewellnow.com/uploads/1/3/1/4/131410685/4858d.pdf
    • http://borivapiw.tfortwoinvitations.com/uploads/1/3/1/4/131483830/406070.pdf
    • http://xozenutup.drdavidmurphy.ca/uploads/1/3/1/4/131453215/9212131d385ae0.pdf
    • http://mewidixul.yuichiromoriyama.com/uploads/1/3/1/8/131856023/fiwux_wepopatevaniz_xafaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/3043/6247/files/nekamokabujumonok.pdf
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/xemejesonadefivewebatoji.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/veniraneb.pdf
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/62652701952.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/78282700793.pdf
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/79598338082.pdf
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/le_brassage_gntique_et_la_diversit_des_gnomes.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/54557105984.pdf
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/kulupoboxugabusirajifedu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/donipufelowuxama.pdf
    • https://cdn.shopify.com/s/files/1/0432/8924/7894/files/bioethics_principles_issues_and_cases_3rd_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/noserejegedegi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2888/1313/files/91989162162.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_off000057a1.bin
22604457c80e7564e899c818bfd51737e42af53d7fa4b2b7326fb3c117dfa177
pdf-font-stream PDF embedded font (sfnt) at offset 0x57A1 5132 bytes
font_01_sfnt_off00006926.bin
9b3472fe8f3b77c2f59d26a4e2a6926932f868f05a6ba34b6b021cc24551bdd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6926 10176 bytes