Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f25537230b7767…

MALICIOUS

PDF

42.5 KB Created: 2020-08-09 17:51:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cd0f22d27ef9bea725c6ee7394d2d0b SHA-1: 5bdffc061d21c98ee46f037ea53c7ca03c0b2ed9 SHA-256: 66f25537230b7767bad0244204623e69ef1d484909e647c442f88ed055d96365
154 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Ayushman Bharat hospital list pdf in delhi' and the wkhtmltopdf application, suggesting a lure to trick users into downloading or accessing malicious content. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful destination, 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=ayushman+bharat+hospital+list+pdf+in+delhi
    • http://bagigulo.bloomclothingcompany.com/uploads/1/3/1/3/131380729/897638.pdf
    • http://javawe.andreaayres.com/uploads/1/3/0/7/130776485/75298.pdf
    • http://files.somonaukwrestlersclub.com/uploads/1/3/0/7/130775940/wetabuwivipogoxivaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/0818/6792/files/probability_worked_examples.pdf
    • https://cdn.shopify.com/s/files/1/0439/1239/6968/files/1530889392.pdf
    • https://cdn.shopify.com/s/files/1/0430/5754/5365/files/dagomakanigapo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/98698337160.pdf
    • https://cdn.shopify.com/s/files/1/0430/6019/9573/files/fisokuwesevebusebotixije.pdf
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/jijevufebolajumoxewimozi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/install_git_with_homebrew.pdf
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/povinitolosiva.pdf
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/37676709497.pdf
    • https://cdn.shopify.com/s/files/1/0439/7072/3998/files/aprender_hablar_japones.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_off000068a8.bin
fd9dc0f3a72bd7ba77709b259ba85c2a765ab223ba9030f02826fc2a9b06facc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68A8 5512 bytes
font_01_sfnt_off00007b39.bin
d2a3e738727f82ab7c532eb7df6639d598b5c437921c458019b7b93cf4aba384		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B39 9908 bytes

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