Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4af0709b81695d0…

MALICIOUS

PDF

39.3 KB Created: 2020-08-12 05:40:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75f4aeea60c9ada291a9cf3ba852097a SHA-1: b89b6250641c6d6566ad17cb6029712576a7954b SHA-256: e4af0709b81695d0474af7c324f8ddb34c6a511651c4147376ca2cdbb68e9b7e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though garbled, contains text related to 'customary units of measurement worksheets 4th grade' and the malicious URL, suggesting a lure to a site that likely hosts further malicious content or phishing pages. The presence of a link farm and a redirector indicates a clear intent to direct users to potentially harmful external 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.ru/wb?keyword=customary%20units%20of%20measurement%20worksheets%204th%20grade
    • http://files.infusionwa.com/uploads/1/3/1/4/131407164/bibizezesipolag.pdf
    • http://files.deepanikennel.com/uploads/1/3/2/7/132740549/e01ebfb32574985.pdf
    • http://vasajet.raspberrytours.com/uploads/1/3/1/6/131606289/negotedidiwa.pdf
    • http://files.madewithartandsoul.com/uploads/1/3/1/8/131871864/wurimato_jabesogoxagiz_gafolupated_kitejikawujas.pdf
    • https://cdn.shopify.com/s/files/1/0435/2560/3488/files/kikekibamekuvemonevewo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4788/6743/files/19637400.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25843483079.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/caiib_risk_management_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/5491/5993/files/biblical_understanding_of_marriage.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6349/files/13826243007.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/15598178794.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/tart_altered_states_of_consciousness.pdf
    • https://cdn.shopify.com/s/files/1/0434/7923/6774/files/71614647276.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_off00005b14.bin
7ee1df408f05f80bb0b250e49c23021029892b6670cb5610b07dd55c2520345d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B14 5540 bytes
font_01_sfnt_off00006deb.bin
fb0eed84613182d8d70d90670042b0425c41fa8c7d11d0e0f46e6a8073d05eec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEB 10044 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.