Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ecdf0b5c0c09a80…

MALICIOUS

PDF

42.5 KB Created: 2020-08-21 18:59:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4218b9c8fad67bd866df5956e04aafda SHA-1: dc779420e33eaec92c8fe1b2f84bff129cf3ae6d SHA-256: 2ecdf0b5c0c09a803b0876dad322234b74eb308d35903cdea774400e1e78a229
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The document body, though partially corrupted, includes the same malicious URL, suggesting an attempt to lure users to a harmful site. The presence of a link farm further supports the conclusion that this document is part of a malicious distribution campaign.

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=delete+search+bar+history+chrome+android
    • http://files.fantabular.com/uploads/1/3/2/7/132740614/0ed7d51f40.pdf
    • http://dipoka.abetamassage.com/uploads/1/3/0/8/130813592/kazegubuxurano_weziwomufe.pdf
    • http://files.oremffa.org/uploads/1/3/0/7/130740053/tirax.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/xiaomi_airdots_youth_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/2474/3591/files/medial_cuneiform_fracture_pediatric.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/57875387540.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jerozex.pdf
    • https://cdn.shopify.com/s/files/1/0430/9526/1333/files/amy_poehler_book_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/arthur_schopenhauer_livre.pdf
    • https://cdn.shopify.com/s/files/1/0437/8198/0317/files/72757514177.pdf
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/51556814605.pdf
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/fumigavumaveno.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/mezufivegovopeponoko.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/rust_sheet_metal_scraps.pdf
    • https://cdn.shopify.com/s/files/1/0434/2297/4117/files/bawedaniravawezu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1739/5614/files/lomipiwururegikejam.pdf
    • https://cdn.shopify.com/s/files/1/0438/2212/1122/files/74344803839.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_off00006849.bin
6cb5a476c88f7bff04cac8b35c13da87e2d084cdfd23359f1f0b0208e049feb4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6849 5420 bytes
font_01_sfnt_off00007a8c.bin
065b41d94e70f73b804dc0e452614049323c8ec8d4508cee0a04eb15c5e4dbb7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8C 10120 bytes