Malicious PDF — malware analysis report

Static analysis result for SHA-256 076e1fd6be44dd86…

MALICIOUS

PDF

54.3 KB Created: 2020-08-22 21:07:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c1146141b43c6c890bf78db25dd6f88 SHA-1: 7e240cff2d06771d305e51cc876f172ab49f220b SHA-256: 076e1fd6be44dd869a403d1bec9f97844fce0621b602c174e379ff100566f1e2
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 Shopify domains, suggesting a link farm or SEO abuse. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=oxford+dictionary+for+my+java+phone'. The document body, though heavily obfuscated, contains a similar URL, indicating the primary purpose is to redirect users to malicious sites. No scripts were extracted, but the presence of numerous links and the malicious redirector strongly suggest a phishing or redirection attack.

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=oxford+dictionary+for+my+java+phone
    • http://files.rosholtstingersyouthfootball.com/uploads/1/3/2/6/132695651/00af4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/aditya_hridayam_stotram.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/jitiwazowasosobusol.pdf
    • https://cdn.shopify.com/s/files/1/0435/5201/4491/files/gundam_seed_destiny_gba_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/jusubitunarib.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1421/files/financial_analyst_interview_questions_and_answers_for_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/abbreviation_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/6863/6834/files/new_orleans_saints_injury_report_2019.pdf
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/31037463446.pdf
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/97562912744.pdf
    • https://cdn.shopify.com/s/files/1/0433/3305/8715/files/bekobofemizoku.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007156.bin
759f96a7a7ef2c19d96c38d8e055a5ebe88fbc533af5bc40d399d736ff102e2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7156 5308 bytes
font_01_sfnt_off0000834b.bin
8dd23c90898d0124e0a653593f388ee4604b1952d222ea23301fb8da4d0935a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x834B 10628 bytes
font_02_sfnt_off0000a7ca.bin
49230a07578f2a0b108554ff1d47b1cb24b8f8081254bad551c0ce72ea05e0a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7CA 16544 bytes
font_03_sfnt_off0000be0d.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE0D 4324 bytes

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