Malicious PDF — malware analysis report

Static analysis result for SHA-256 1500e9e56dcea6a0…

MALICIOUS

PDF

41.2 KB Created: 2020-08-05 15:09:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4af375570fe6f80ea2aa30c5a4fa3b3 SHA-1: dec0e673142aa8bb1ca4ec70acba396ae5beb3a7 SHA-256: 1500e9e56dcea6a06f535cd0b2ba114956b09f44b8dceb8e58b9ea130e294b13
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector infrastructure. This suggests the document is designed to lure users to malicious sites, likely for SEO poisoning or to distribute further payloads. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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=las+clases+sociales+en+mexico+pdf
    • http://files.oldburyswimmingandtriathlonclub.co.uk/uploads/1/3/1/3/131384552/rekulirutigiwu_lunabig.pdf
    • http://files.bunioncenternyc.com/uploads/1/3/0/8/130874520/1ead5bea11f2f9.pdf
    • http://files.greenphilsinc.com/uploads/1/3/0/7/130775308/6779223.pdf
    • http://files.docuprodrawings.com/uploads/1/3/1/4/131406202/3788005.pdf
    • http://files.galwaylocaltourist.com/uploads/1/3/0/7/130739119/xizudimuperapu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/5926/3141/files/nolulok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9724/4316/files/narikarutagesisi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/c_language_interview_questions_and_answers_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/bkat_test.pdf
    • https://cdn.shopify.com/s/files/1/0435/6997/1363/files/zajafisir.pdf
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/boromikojimunagewolazaza.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdf
    • https://cdn.shopify.com/s/files/1/0429/8620/9439/files/10653155423.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdf
    • https://cdn.shopify.com/s/files/1/0437/1628/0475/files/json_file_comments.pdf
    • https://cdn.shopify.com/s/files/1/0436/7240/4118/files/juzofewupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7691/9194/files/lugidux.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_off000060bd.bin
0b1f0677e668749c68725686f52ff98444b3d2a5b80c2c8b821a5f3cdf11bce7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60BD 5212 bytes
font_01_sfnt_off00007275.bin
a46a7736983401037091cd9be548a0a3159bb9f18040c81fc12b6a44fe7d273d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7275 11032 bytes

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