Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bee144f5f45c184…

MALICIOUS

PDF

41.9 KB Created: 2020-08-27 19:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2593842964d88de5ba10345acec84703 SHA-1: 3c635f450c97fc3360310f9913e98a60c3031cdd SHA-256: 0bee144f5f45c1840cba14e0229bd5ca1842bb9c41e06fa1f3840e27c42d013b
154 Risk Score

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=cartas+illuminati+traducidas+al+espa%2525C3%2525B1ol
    • http://files.emotionsinwriting.com/uploads/1/3/1/4/131453588/botopatopazumo-noler-jomekebofoxu-tafajurupenu.pdf
    • http://files.drbednarorthodontics.com/uploads/1/3/0/8/130814085/2008945.pdf
    • http://files.ustars.org/uploads/1/3/2/8/132814196/fibal.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/gowega.pdf
    • https://cdn.shopify.com/s/files/1/0432/6490/1270/files/wowanusetananivanijidu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1726/files/gimezufakazotarubo.pdf
    • https://cdn.shopify.com/s/files/1/0436/7794/1913/files/basorimiwufozevepiku.pdf
    • https://cdn.shopify.com/s/files/1/0432/8118/6972/files/zovoxuwezobesu.pdf
    • https://cdn.shopify.com/s/files/1/0462/3545/1543/files/livre_montessori.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/5178728423.pdf
    • https://cdn.shopify.com/s/files/1/0430/4997/5959/files/bebagug.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3981/files/57619896970.pdf
    • https://cdn.shopify.com/s/files/1/0438/5246/4293/files/vocal_warm_ups.pdf
    • https://cdn.shopify.com/s/files/1/0434/6114/8836/files/logumaxunegosikup.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4693/files/gurezobitejeseb.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_off00005758.bin
b8954d780788cfe5e3739054f48191f28a6aaab055c46f0c460c175108a35038
pdf-font-stream PDF embedded font (sfnt) at offset 0x5758 3528 bytes
font_01_sfnt_off000063de.bin
4ea204df0eca807d236f31952e8b578125175ab8ab276e05c49a700d5dd98148
pdf-font-stream PDF embedded font (sfnt) at offset 0x63DE 5336 bytes
font_02_sfnt_off000075a2.bin
5dbcc3d3bee157915caf36b7531cbec702709b5cd507231ef6e857e29afcccf3
pdf-font-stream PDF embedded font (sfnt) at offset 0x75A2 10092 bytes