Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf2d096032d56edc…

MALICIOUS

PDF

41.1 KB Created: 2020-07-30 20:57:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3075b31df5a9faa473bc64b93a1b483 SHA-1: a22d14a5ecdbab6e4d248d967d892bffc2bfcbe9 SHA-256: cf2d096032d56edcbec80fb31c631f4eea0c9d833fd3eea279fd102ffe17c429
152 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic points to a PDF link farm, suggesting SEO poisoning tactics. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware distribution site.

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/pify?keyword=personality+adjectives+exercises+intermediate+pdf
    • http://files.ateliermandaline.com/uploads/1/3/2/3/132303075/f53889d721b.pdf
    • http://files.enablingability.com/uploads/1/3/0/7/130776072/jurexizimoxobu_xanidaxuxowi_vufapojepe.pdf
    • http://files.sundancehalters.com/uploads/1/3/1/3/131378838/dadinijutom.pdf
    • http://files.tarotclarity.com/uploads/1/3/0/7/130739488/lazugibojo.pdf
    • http://files.tarotclarit
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/14785479577.pdf
    • https://cdn.shopify.com/s/files/1/0431/6699/0502/files/71433318917.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/medade.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/92955584973.pdf
    • https://cdn.shopify.com/s/files/1/0430/3886/7607/files/viwaxijasebak.pdf
    • https://cdn.shopify.com/s/files/1/0434/8549/5453/files/24280336295.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/vafolixobugabanameduxopom.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/tokedojivolopaxor.pdf
    • https://cdn.shopify.com/s/files/1/0439/5529/0270/files/wofumubov.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/54517063790.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/rapimoler.pdf
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/56499758406.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_off0000633d.bin
69f2711866df82fb4e1f6f892c8625ba62bd7e662f2a3eea14b90f5c6799dafb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x633D 5396 bytes
font_01_sfnt_off0000758a.bin
5ae4d5742a1bbe820f072e246e6692941312d21f3ffb19b82808d6a8b809c4a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x758A 9796 bytes

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