Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0ee8e60e488e57f…

MALICIOUS

PDF

38.8 KB Created: 2020-08-18 12:59:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c6b52dcb0338141455c915ae22ac4a94 SHA-1: 5ed3e071a4a185bc39fa3189514752c103cf07b4 SHA-256: f0ee8e60e488e57f0164541a0d80b83856e547e645bbea8bdc64a736f28ebb42
152 Risk Score

Malware Insights

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

The PDF contains a link farm of numerous PDF files hosted on Shopify, likely intended to appear legitimate or as search engine optimization content. The primary malicious link, 'https://ttraff.com/pify?keyword=intellectual+property+powerpoint+template', redirects to known malicious infrastructure. This suggests a social engineering attack aiming to direct users to harmful content through a deceptive link structure.

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=intellectual+property+powerpoint+template
    • http://juzero.kathrynyancey.com/uploads/1/3/0/8/130814328/wuranufunibujor_jegiga_vamilapo_mefuvevajigut.pdf
    • http://files.sojournersoap.com/uploads/1/3/1/8/131871569/mitog.pdf
    • https://cdn.shopify.com/s/files/1/0433/6667/8696/files/mugavoke.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/kazokokizaludulo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9331/9079/files/vidimenepiwezo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6406/6209/files/xetawozejunoli.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/butigawukukemanela.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7943/files/61394868413.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/75947873886.pdf
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/karawoxagovatelulide.pdf
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/37461299627.pdf
    • https://cdn.shopify.com/s/files/1/0434/7841/7558/files/woxelogufesabivofobaku.pdf
    • https://cdn.shopify.com/s/files/1/0453/2869/5451/files/88533743701.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_off00005c3f.bin
49b226d0faa79abb99b52b16632e81f66ade449d7a3518f1ede20806bf36b452
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3F 5032 bytes
font_01_sfnt_off00006d59.bin
091d86e297aee2697c4b49f556eec140eb11b5a747ea6474e2b4da34aef2dcc1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D59 9768 bytes