Malicious PDF — malware analysis report

Static analysis result for SHA-256 48648eb855dae13b…

MALICIOUS

PDF

42.7 KB Created: 2020-10-03 00:25:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e682f5768c2c07698fd2f2f55f2f9cbd SHA-1: 9556a3d665d9fb95ccd78159df0879a892f6b13c SHA-256: 48648eb855dae13ba422893b7f8249f33b1cae6e9400b128710aa46ca108f520
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains the URL 'https://gettraff.ru/strik?keyword=land+guideline+value+trichy', suggesting a phishing or scam attempt. The presence of multiple Shopify links, some flagged as benign, may be an attempt to blend in with legitimate content while directing users to malicious sites.

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://gettraff.ru/strik?keyword=land+guideline+value+trichy In PDF document text
    • http://files.yeticollections.com/uploads/1/3/1/6/131637240/8111981.pdfIn PDF document text
    • http://mabawusiz.sydmocreativeco.com/uploads/1/3/1/6/131606457/nonuminusasoxo_wepoxasagavu_wimolu.pdfIn PDF document text
    • http://pafosome.thewardrobeclothing.com/uploads/1/3/0/7/130775971/dozemenaxekiga.pdfIn PDF document text
    • https://site-1037157.mozfiles.com/files/1037157/rojabanuvi.pdfIn PDF document text
    • https://site-1036646.mozfiles.com/files/1036646/jomogagareporoj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0668/4068/files/payday_board_game_rules_2000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5269/4680/files/18772147317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4036/9571/files/romebitepavoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2037/2136/files/unification_church_god_the_mother.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6441/7694/files/notice_and_note_signposts_short_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7804/files/uabc_campus_tijuana_directorio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5790/0448/files/15666197872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/1754/8188/files/elementary_numerical_analysis_3rd_edition_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/numeros_mayas_de_guatemala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1553/5767/files/biwejexazitaw.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000697e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697E 5124 bytes
SHA-256: 064486c742b9a8a8cb20934e16077151e698831e8d5c8228e435a3d2bdfa626d
font_01_sfnt_off00007afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFA 10360 bytes
SHA-256: 7bdce7632008f24a0551770fadc6e90b7384a1e705bff9402ed5e20b282643c3

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