Malicious PDF — malware analysis report

Static analysis result for SHA-256 6345d4143a4410fe…

MALICIOUS

PDF

39.3 KB Created: 2020-08-10 20:46:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f7bed3e48e8d475bdfe2ae9227624735 SHA-1: 6f929da034b9a3c23d78e2c3fcea0cb1df7fec2e SHA-256: 6345d4143a4410fe2f8962ab479f48c7fbabc8aee5d1865cf1f7f88d94c57877
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though malformed, contains text related to 'physical management for neurological conditions' and a URL that matches the redirector. This suggests the document is designed to trick users into clicking links that lead to malicious sites, likely for phishing or malware distribution.

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.ru/pify?keyword=physical+management+for+neurological+conditions+pdf
    • http://files.charaliliana.com/uploads/1/3/1/3/131383318/226648.pdf
    • http://files.lordoflifelutheranrc.org/uploads/1/3/1/6/131636995/kukezelajemunif-jisopen-pipuguw.pdf
    • http://vagebire.stfrancispaumavalley.org/uploads/1/3/1/8/131857419/df9c72d.pdf
    • http://wugawo.putitbluntly.org/uploads/1/3/0/7/130738970/loler.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/anexar_no_sei.pdf
    • https://cdn.shopify.com/s/files/1/0451/3690/4346/files/kovifabamimaf.pdf
    • https://cdn.shopify.com/s/files/1/0427/8334/2748/files/73681401388.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/99825517460.pdf
    • https://cdn.shopify.com/s/files/1/0437/8551/9261/files/bsc_1st_year_botany_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/58652772324.pdf
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/printable_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9204741539.pdf
    • https://cdn.shopify.com/s/files/1/0438/5262/8118/files/zusurasupimaluvupupabobe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/sanyo_tv_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/83635394693.pdf
    • https://cdn.shopify.com/s/files/1/0438/1740/2530/files/99618303958.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_off0000595f.bin
b31afafa58d4c62a64f3940c7cf5695ad4663d3751bac54b1d597391806186ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x595F 5672 bytes
font_01_sfnt_off00006c7f.bin
2c619b892d3cab0656b3ab80834e096d010c68d0e66e1f3c9d3924da77c9f63b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7F 10320 bytes

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