Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eca47a83cca493a…

MALICIOUS

PDF

34.6 KB Created: 2020-08-30 06:40:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0dd1698e65bb67bb32de6acef0a47f5c SHA-1: 69391df7a4b752b7561659a1ee07ce09762934c0 SHA-256: 5eca47a83cca493a27215c668f7e920379cde1230cba92748611359d167cb1ff
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is ttraff.com, which is flagged as a redirector. The document body itself contains garbled text but includes the malicious URL and references to other PDF files hosted on Shopify, likely part of the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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=camboy+estevez+los+caminos+de+la+vid
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdf
    • https://cdn.shopify.com/s/files/1/0432/9416/3102/files/rodabize.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/what_is_stack_segment_grew_upwards.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4504/files/bible_lds.pdf
    • https://cdn.shopify.com/s/files/1/0437/7883/4583/files/89832422029.pdf
    • https://cdn.shopify.com/s/files/1/0462/7526/4661/files/canon_eos_rebel_xti_software_mac.pdf
    • https://cdn.shopify.com/s/files/1/0431/0981/0327/files/gumosonurov.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/42356084672.pdf
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/29421193566.pdf
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/gewano.pdf
    • https://cdn.shopify.com/s/files/1/0428/5048/4390/files/40394931569.pdf
    • https://cdn.shopify.com/s/files/1/0433/8581/5194/files/negative_prefixes_advanced_exercises.pdf
    • https://static.usrfiles.com/ugd/dad90e_2ec8db232d7f4aa08c5e21217a295b70.pdf
    • https://static.usrfiles.com/ugd/fd3290_e6c5578cd2c94529a0a832a86d5f64c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_7d3cd954f1da4bada83340c99be8475f.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b16d1d4224f41dd92eab41919879f9f.pdf
    • https://static.usrfiles.com/ugd/b8c837_6fe114e92fed432bb41651a335f86c31.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004930.bin
dadf059ce2a30a3af1ab68e8c904af47bacbb471ca70a05a7699f571185f4a26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4930 5244 bytes
font_01_sfnt_off00005b07.bin
d703ca732dabdad8e23b6c22f73490c1b7396a8a3657e0e1ff836f7c6549489c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B07 10016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.