PDF malware analysis — malicious · 53603d4c35973fcf

MALICIOUS

PDF

71.3 KB Created: 2020-08-10 07:30:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ac87e7061c6d80ba263c07eef3816d0e SHA-1: 75c940e4b56953e16bd8ea45186b46aace7298ae SHA-256: 53603d4c35973fcf763ed77b9c4dbc5b1f133b6b13323b9db9823abd61c8cd4e

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that point to a known malicious redirector, indicating a phishing or malware distribution attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK strongly supports this, and the presence of a link farm (PDF_SEO_LINK_FARM) suggests an attempt to broaden reach. No scripts were extracted, but the document body and metadata suggest a lure related to a declaration or official document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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=declara%25C3%25A7%25C3%25A3o+nostra+aetate+pdf
- http://files.pembinavalleystudiotour.com/uploads/1/3/2/6/132681336/vibukewopatelelagat.pdf
- http://files.cjministry.info/uploads/1/3/0/8/130813992/5717fd6.pdf
- http://files.feldenkraisintoronto.ca/uploads/1/3/0/7/130775275/butapidevixiri.pdf
- http://files.playcaresrc.com/uploads/1/3/2/8/132815015/felikexopekovogexad.pdf
- http://files.yergens.net/uploads/1/3/1/6/131637178/1890600.pdf
- https://cdn.shopify.com/s/files/1/0431/2960/2205/files/supidumofolijeg.pdf
- https://cdn.shopify.com/s/files/1/0428/3754/1031/files/biochemical_test_for_staphylococcus_epidermidis.pdf
- https://cdn.shopify.com/s/files/1/0429/9977/5381/files/lulefebi.pdf
- https://cdn.shopify.com/s/files/1/0434/2353/1175/files/16644269992.pdf
- https://cdn.shopify.com/s/files/1/0447/9424/9377/files/ap_reorganization_act_2020.pdf
- https://cdn.shopify.com/s/files/1/0429/3486/1991/files/23795329524.pdf
- https://cdn.shopify.com/s/files/1/0436/2846/2240/files/rukutesanibovadelebudu.pdf
- https://cdn.shopify.com/s/files/1/0434/2513/6792/files/54676981676.pdf
- https://cdn.shopify.com/s/files/1/0430/5597/2501/files/narelawa.pdf
- https://cdn.shopify.com/s/files/1/0432/1063/7476/files/vusowutolususezesezi.pdf
- https://cdn.shopify.com/s/files/1/0427/9091/2159/files/40114387262.pdf
- https://cdn.shopify.com/s/files/1/0434/0704/8860/files/tideponikedumanoro.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d4f5.bin` `1fe9ad6399d8ec0fa08262e6bdeb07acb1d8b828c900c10de8397022ea41fa07`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4F5	5648 bytes
`font_01_sfnt_off0000e766.bin` `69a1a4fef3033f08a1b94ce1e5d664ebd3ab9e2f06e4ba3aa7e2ff8c86d61ee7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE766	12908 bytes

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