Malicious PDF — malware analysis report

Static analysis result for SHA-256 f078d9362520d9c1…

MALICIOUS

PDF

36.7 KB Created: 2020-09-01 12:02:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41beeacaf50fc7da3f72104bdb4128c8 SHA-1: 9fd9c3fee1e1b7dfe4f78adcbb9d546cde6769e6 SHA-256: f078d9362520d9c12738fb4f8400bb272b38d3e38cde3832893014f7188d3a52
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=cute+babies+dancing+videos+free'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, further supports a link farm or SEO poisoning tactic to distribute the malicious redirector. 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.cc/wix?keyword=cute+babies+dancing+videos+free
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/select_col8_1_from_1yqcjjcml9hryi_dk-_py55fmwzkttiq2wa1l5lies.pdf
    • https://cdn.shopify.com/s/files/1/0449/6103/8495/files/deconstructive_architecture.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/35077561941.pdf
    • https://static.usrfiles.com/ugd/b8c837_ec31714a27b74abebb7d7c62c86ad74a.pdf
    • https://cdn.shopify.com/s/files/1/0432/5018/8443/files/53714209819.pdf
    • https://cdn.shopify.com/s/files/1/0431/5430/9284/files/celestron_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0436/1699/3440/files/dna_structure_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/gekumobeledavomagimika.pdf
    • https://cdn.shopify.com/s/files/1/0434/5747/8809/files/2305719794.pdf
    • https://static.usrfiles.com/ugd/64d889_c2aea396e16340158adc7f6b9f4d6745.pdf
    • https://static.usrfiles.com/ugd/b8c837_ecca9774b4e14120a00f63ae7b267244.pdf
    • https://static.usrfiles.com/ugd/ee4a13_7a337a3d06104c6b9cd0ed533829ff46.pdf
    • https://static.usrfiles.com/ugd/a4d998_a4520e4546ef4b19a4a043d407c68d1b.pdf
    • https://static.usrfiles.com/ugd/b8c837_35eddabeec164694aa16ed90af27fc0c.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_off00005162.bin
3abc9346f43d72a86d2efb1b253a546dc094a49394989d86821832773198cbf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5162 5264 bytes
font_01_sfnt_off00006359.bin
a2664a9823783ba9402dbcab8a43f28dde44d7e36f20e8b6b13458e2833fd741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6359 10200 bytes

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