Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ae63984acc32a42…

MALICIOUS

PDF

45.6 KB Created: 2020-08-31 11:51:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd3b530169c71767ad6b0e5ed169c175 SHA-1: f44c0de21132a52d732501b75d20e1685af2031d SHA-256: 7ae63984acc32a42eb389b096a8c55c5da78a2175b8666cc251a7cc7735a7743
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to SEO-optimized PDF files, suggesting a link farm. One prominent link, disguised as a search result, redirects to 'https://ttraff.com/wix?keyword=gourds+for+sale+in+georgia', which is flagged as malicious redirector infrastructure. The document's content and structure strongly indicate an attempt to manipulate search engine rankings or lure users through deceptive search result appearances.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=gourds+for+sale+in+georgia
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b8c837_03cd2da1f9fc42399650b944f5b7e15d.pdf
    • https://static.usrfiles.com/ugd/de60da_8377596a5a694b65a9b7811379f6ea75.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf74f1ab28294179afd852799f9906ea.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_49e247b457b9456c8357d4f8f440cbb0.pdf
    • https://static.usrfiles.com/ugd/daca0d_253ef312fb6e48799710f9d06b948628.pdf
    • https://static.usrfiles.com/ugd/8b2c09_3950ef36d8f5458e8175b0148e0f99b2.pdf
    • https://static.usrfiles.com/ugd/b8c837_c02035af460e4bfc92c6e51eb577c4a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_52cc22bbb8c04c398fb28627c88c81bb.pdf
    • https://static.usrfiles.com/ugd/96bf9d_be12817a36cb4414afac708ba27f7454.pdf
    • https://cdn.shopify.com/s/files/1/0432/7623/9014/files/ninofenugibomax.pdf
    • https://cdn.shopify.com/s/files/1/0431/6607/2994/files/vukuwapilinomarev.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/app_instagram_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0435/5883/0231/files/alteryx_data_types.pdf
    • https://static.usrfiles.com/ugd/0a0016_4bb887d174fa46989f821c254f54a8f6.pdf
    • https://static.usrfiles.com/ugd/2b3f46_681b7a0e293d41289ee406f67d99b62e.pdf
    • https://static.usrfiles.com/ugd/b8c837_d78f471f79da4167b0a7e9953e87252a.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063e5.bin
c16dbff8ab82151e3b6d2488830d16ede0db7a00e2d60db47fc9bb2ee7c22708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E5 4908 bytes
font_01_sfnt_off0000749c.bin
ce35acd326b508bc8bedd4487eff3009e90e203ff43a87d9d2021f4860eb6ea7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749C 10676 bytes
font_02_sfnt_off00009916.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9916 4324 bytes

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