Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2d326ddcaff790…

MALICIOUS

PDF

58.1 KB Created: 2020-09-02 18:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 731d6d7d13e39709f826b07e69feda61 SHA-1: 03d3d219f0322c551df9d83bc684144f1bad87d5 SHA-256: ea2d326ddcaff7907a0b0199f1da67ab547998e9b83c22d56a13b7890c9c7158
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF contains numerous links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the same redirector URL and other benign-looking PDF links, suggesting a link farm or redirection tactic. The primary intent appears to be directing the user to malicious infrastructure via the ttraff.com URL.

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/wix?keyword=deconstructivismo+arquitectura+pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdf
    • https://cdn.shopify.com/s/files/1/0460/5988/0603/files/customer_satisfaction_survey_templates_free.pdf
    • https://cdn.shopify.com/s/files/1/0465/3491/8302/files/fuck_it_up_download.pdf
    • https://static.usrfiles.com/ugd/d5415a_2c3d7f9bc4e24867817196a331dc8573.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_60bf69a2e1834e0f86afc4c8ae196f8d.pdf
    • https://static.usrfiles.com/ugd/b8c837_f86210dab46140d2aa205a30258b3991.pdf
    • https://static.usrfiles.com/ugd/fbccce_e5169c97b95e4e0e9f597e81563fb6a2.pdf
    • https://static.usrfiles.com/ugd/205ae4_532fb0f5bccd4e7289c02ea7b4b61d08.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/vasasozaviwunozugegupe.pdf
    • https://cdn.shopify.com/s/files/1/0437/4118/4165/files/engineering_mechanics_dynamics_8th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/spotify_host_file.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/king_kutter_bush_hog.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/45041596241.pdf
    • https://cdn.shopify.com/s/files/1/0428/6133/0598/files/479284063.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/57206576516.pdf
    • https://cdn.shopify.com/s/files/1/0433/4731/2789/files/ielts_speaking_topics_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/60311537547.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_off00009794.bin
434b50c8aab7dbe9ecb2bdd40a6b5468c15663b57780155356cc482b06d72a2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x9794 5336 bytes
font_01_sfnt_off0000a99f.bin
2df14552e0a46361c2d5cb58bc85134208c62e26ad393dfb3189f7ea02c014f6
pdf-font-stream PDF embedded font (sfnt) at offset 0xA99F 10392 bytes
font_02_sfnt_off0000cd2a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD2A 4324 bytes