Malicious PDF — malware analysis report

Static analysis result for SHA-256 d06be177f563d846…

MALICIOUS

PDF

46.1 KB Created: 2020-08-23 09:59:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 988ee6dc7402a7dfdf92369b49a92cca SHA-1: 200105532884b9d19c8ec8641347bb97ac5203d9 SHA-256: d06be177f563d846c1e15efb9903993e0988bbeb35b65a3aafa66a9f1d76f68b
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=zhiyun+smooth+q+manual'. The document body, though heavily obfuscated, contains text related to 'Zhiyun smooth q manual', suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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=zhiyun+smooth+q+manual
    • http://kamejil.mcmintegrated.com/uploads/1/3/0/7/130739607/vubulivorukifigav.pdf
    • http://files.powerflyproducts.com/uploads/1/3/1/8/131856945/xamamiluwipak.pdf
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/19695989244.pdf
    • https://cdn.shopify.com/s/files/1/0438/3562/1536/files/aprender_a_leer_dehaene.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/clinical_hematology_mckenzie.pdf
    • https://cdn.shopify.com/s/files/1/0429/8830/6586/files/airtel_digital_tv_recharge_plans_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/tesco_job_online_questionnaire_answers_2018.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/fupumejopetaperowize.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/30595928023.pdf
    • https://cdn.shopify.com/s/files/1/0437/5996/0218/files/sebadevibolirufovezezi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6630/2374/files/conversation_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/lewitugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/microscopic_haematuria_guidelines_racgp.pdf
    • https://cdn.shopify.com/s/files/1/0429/8024/5657/files/beep_codes_of_computer.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005838.bin
39772847134b792b1280bd3a70299f66891a0ad4a183977f153c79be44f4b030
pdf-font-stream PDF embedded font (sfnt) at offset 0x5838 5968 bytes
font_01_sfnt_off00006cb2.bin
0f0516e3b8facd6854dd68c045a98afb7fa0be17c83bb425f264f344a42e6b68
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB2 5012 bytes
font_02_sfnt_off00007d9b.bin
48850db748a784a1305501fd8b06b7d0177b153c4f9597a7a51b472053cf8172
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9B 14296 bytes