Malicious PDF — malware analysis report

Static analysis result for SHA-256 589c814143e6e4f5…

MALICIOUS

PDF

46.0 KB Created: 2020-09-22 01:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 597cb181d0d75ee58d35fa2f52a5143a SHA-1: d81995076f269ea3b22ef7adbe4e56fbe80a4fe2 SHA-256: 589c814143e6e4f5c134f5de887f8145d23025db041ed7cd69ad0c735114371f
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with several pointing to known malicious redirector infrastructure and SEO link farms. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a direct link to a malicious redirector, and 'PDF_SEO_LINK_FARM' suggests a large number of outbound links designed to manipulate search engine results. These elements strongly suggest the document's purpose is to direct users to potentially harmful websites, likely for phishing or malware delivery.

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.club/wix?keyword=middle+earth+quest+pdf
    • http://kuzewijo.nourishacupuncturewellness.com/uploads/1/3/2/8/132815986/farelarupitede.pdf
    • http://kivejabu.josephlorenzen.com/uploads/1/3/1/4/131407089/selidelepovox-pidigoxez-tapoj-fivamasakewusu.pdf
    • http://files.unboundtravelers.org/uploads/1/3/0/8/130874489/tagiredo.pdf
    • http://files.stfoafrisco.org/uploads/1/3/0/7/130739713/2616085.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65925238695.pdf
    • https://cdn.shopify.com/s/files/1/0433/7346/1669/files/adobe_premiere_pro_cs5_tutorial_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5783/files/dumalujiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/article_writing_format_class_11_cbse.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/zodewo.pdf
    • https://10d8c9fe-5e55-4562-96c8-40330427d4a7.filesusr.com/ugd/5b604d_0265af8a6f8c4fbc8eb2949813edcc5f.pdf?index=true
    • https://cde890bc-a050-484d-8037-92b9b7a080df.filesusr.com/ugd/61567a_cdaeb206af394e9aba8ba61728ea3777.pdf?index=true
    • https://6221ee51-4891-4048-98f1-b7b5d96b0060.filesusr.com/ugd/debbe1_853e19161ca94b63a92ebad71a0a9199.pdf?index=true
    • https://ad04b83b-2c71-46da-98f6-b8e513e7b4e6.filesusr.com/ugd/1e533a_6ff9fc945f0344efb731cd7ab17b94fc.pdf?index=true
    • https://494c28d1-bf77-490f-8036-6a4e15275f99.filesusr.com/ugd/ede58b_2c9cd05821be4596990a30ce1272e5d1.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/9242/7430/files/73589148586.pdf
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/topics_in_algebra_herstein.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5236/files/dexowovipugazifosugow.pdf
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/83685354558.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_off00007856.bin
627f92284a2764b2a61c34f4b7b861504ef5f7edc1307f992bf6866df09cef94
pdf-font-stream PDF embedded font (sfnt) at offset 0x7856 5260 bytes
font_01_sfnt_off00008a38.bin
f8109c704a1d1a479d5a996ff03ba18e7934ed27038b4a189f79bd84c1df35af
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A38 9620 bytes