Malicious PDF — malware analysis report

Static analysis result for SHA-256 edc754fabc48104c…

MALICIOUS

PDF

42.0 KB Created: 2020-08-24 21:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dd98abe86a7dd9eab62616944ebd5fc SHA-1: 01274194625d4b6866df3c7ebf677901324d138e SHA-256: edc754fabc48104c00bef47f219529d50a39397e7949e86c5b7b1b917830ba20
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com). This suggests a phishing or social engineering attack where the user is intended to click through to malicious content. The document body itself is heavily obfuscated but contains the URL that triggered the redirector heuristic. 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.com/pify?keyword=bibliography+for+journal+articles+in+apa+format
    • http://files.photographytoursatnight.com/uploads/1/3/1/4/131408864/kiwaxonow.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/77649263672.pdf
    • https://cdn.shopify.com/s/files/1/0448/9589/5707/files/woresotix.pdf
    • https://cdn.shopify.com/s/files/1/0439/1947/4856/files/bhagavad_gita_chapter_1_sanskrit.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/modal_verbs_advanced_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6731/files/differential_geometry_and_topology.pdf
    • https://cdn.shopify.com/s/files/1/0429/2991/4012/files/antrenmanlarla_matematik_4_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2309/files/gumepoxinunixutevuzekaju.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/58613096809.pdf
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/vusafosakitozafij.pdf
    • https://cdn.shopify.com/s/files/1/0437/9970/7810/files/convertir_de_a_word_descargar_gratis_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/5099615299.pdf
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/mokopuwepiwuvab.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_off00006500.bin
999248f44ee15487696a5e275df1ef02d4ca9e3b021924d31a3bf227d19bfd06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6500 5796 bytes
font_01_sfnt_off00007890.bin
d6c6e8572461cc62d8ba11badf7f550d8ca70b9e6bbeb322456b0649d481d628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7890 10104 bytes

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