Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f5859649122b8c…

MALICIOUS

PDF

47.4 KB Created: 2020-08-26 18:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 766c38361cfedc44741ac7a40187eb4f SHA-1: 0d9077d7a8d2635708d910f03c9b988d33a2692e SHA-256: 93f5859649122b8c4478e8826cd4b98f3f79752354196f82e49a1aa8ee9770e5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. 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=hero+wars+guide+2019
    • http://jodap.schooneryacht.com/uploads/1/3/2/7/132740837/jegowiteted.pdf
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/catalogo_hinode_ciclo_3_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/6054/3138/files/tm_malaysia_annual_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/business_plan_startup_template_excel.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/advantages_and_disadvantages_of_student_centered_learning.pdf
    • https://cdn.shopify.com/s/files/1/0434/3290/2806/files/sonosuramukuzirutuja.pdf
    • https://cdn.shopify.com/s/files/1/0433/7978/5886/files/giwetonotikud.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/cake_decorating_made_easy.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9016/files/60313430643.pdf
    • https://cdn.shopify.com/s/files/1/0436/8905/0265/files/50032312230.pdf
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/luxalefujufijerisoxowux.pdf
    • https://cdn.shopify.com/s/files/1/0431/9700/5981/files/john_deere_175_hydro.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cf2.bin
9bb921a6279bbea18d71926f98eef4ab27512ffbf76cd1742c839e20bcedf033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF2 5192 bytes
font_01_sfnt_off00007eb2.bin
caceb7c25975d942327abb0a0172258630c33fbcf70054dd20ffe9ef5a662d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB2 10592 bytes
font_02_sfnt_off0000a2fe.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2FE 4324 bytes

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