Malicious PDF — malware analysis report

Static analysis result for SHA-256 5340f548170bf02d…

MALICIOUS

PDF

40.1 KB Created: 2020-08-17 00:50:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5185e8e2f4b3052e3252c5bc3fd057c SHA-1: d13751fae9c775fe7b67292ecb60213a9132ba98 SHA-256: 5340f548170bf02dc96ff91c5a9fc929626156aee9cf04341708a20848180817
128 Risk Score

Malware Insights

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

The PDF contains a lure related to 'exam date sheet 2020 class 10' and includes a call-to-action button. It links to a redirector URL (ttraff.cc) which is flagged as malicious. The document also hosts a large number of external PDF links, many pointing to Shopify, suggesting a link farm for SEO poisoning or traffic redirection.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=exam+date+sheet+2020+class+10
    • http://files.karenrobinsondance.net/uploads/1/3/2/6/132696174/5454db3615e958.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/wefuwoxezawafawiwuraki.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/betatron_principle_and_working.pdf
    • https://cdn.shopify.com/s/files/1/0440/4301/0213/files/how_to_add_project_to_github.pdf
    • https://cdn.shopify.com/s/files/1/0435/9893/8274/files/windows_2020_active_directory_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/0588/5090/files/60557515386.pdf
    • https://cdn.shopify.com/s/files/1/0435/4863/9391/files/john_taylor_classical_mechanics_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/79828118084.pdf
    • https://cdn.shopify.com/s/files/1/0435/9408/8611/files/schneider_mccb_catalogue_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/wamaruwevi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/rowilinuwefawixejupetu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/94178950905.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_off00005feb.bin
0bf0701fea46c35443de8c745fb4bb764f5298e592be967c7726dbe8087c64a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEB 5432 bytes
font_01_sfnt_off00007255.bin
9eb49ac2a3b5983fd55fb76a7f09ebf29a23c2d9d0ddffab6508281a670c6a03
pdf-font-stream PDF embedded font (sfnt) at offset 0x7255 9840 bytes