Malicious PDF — malware analysis report

Static analysis result for SHA-256 b51c0ee980d59934…

MALICIOUS

PDF

39.5 KB Created: 2020-08-30 20:17:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff178ca0c664d0b5aa1c4dacb79af59c SHA-1: ac719961f0d4f021dfcb92fe4c7cefe7284a94cb SHA-256: b51c0ee980d599345f615f88f520141b12b3c2f5a979706c73f5c8698d6b9dad
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding a significant number of external URLs. One of these URLs, 'https://ttraff.com/wix?keyword=sogeres+neuilly+sur+seine', is flagged as a malicious redirector. The presence of numerous links, including the malicious one, suggests an attempt to lure users to potentially harmful sites, likely for phishing or malware delivery.

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=sogeres+neuilly+sur+seine
    • https://static.usrfiles.com/ugd/b8c837_12dbbae6700946b2bd35f5b8641ff41c.pdf
    • https://static.usrfiles.com/ugd/07e02c_1b9814f9750444e8827f4dc77349bccc.pdf
    • https://static.usrfiles.com/ugd/b8c837_74ce2ee4f04c40b098c673db95b548dc.pdf
    • https://static.usrfiles.com/ugd/3ce946_0b755047f60f4b6a8c03379da5c290c7.pdf
    • https://static.usrfiles.com/ugd/79cb75_64cc96504511477bbcf0bf6ba7877739.pdf
    • https://cdn.shopify.com/s/files/1/0439/7708/0990/files/apgar_score_pada_bayi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7949/0968/files/55739097442.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/motivation_letter_template.pdf
    • https://cdn.shopify.com/s/files/1/0459/9296/8351/files/67616467785.pdf
    • https://cdn.shopify.com/s/files/1/0432/5824/9376/files/19971245054.pdf
    • https://cdn.shopify.com/s/files/1/0431/1302/1607/files/rudojuwurefawosisabux.pdf
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/ribifumusu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7383/0040/files/sex_lab_skyrim_special_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/jupig.pdf
    • https://cdn.shopify.com/s/files/1/0430/8022/0823/files/vonesisom.pdf
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/93894130698.pdf
    • https://cdn.shopify.com/s/files/1/0438/2323/5234/files/pathophysiology_of_pregnancy_induced_hypertension.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_off000059bf.bin
6926c9771b07999791ec4c63af775978d376248d3d219e0ab6f54297179f6528		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59BF 4848 bytes
font_01_sfnt_off00006a54.bin
7d606caef9b5e6064e60462c4821eb0083ead9a63707b79411742e5cb5679a27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A54 11968 bytes

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