Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba2024ec87e4fab…

MALICIOUS

PDF

89.3 KB Created: 2021-05-29 06:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 338ed2ea0fa729e88ead5ff41d279383 SHA-1: c3ec51e3c58827bf7610ef3e4bf7268470b4b6b1 SHA-256: aba2024ec87e4fab9a3515111cff7a18a0807f37bc2b34dd948bd944c8f20bac
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for link farms or phishing lures, with one prominent URL pointing to a suspicious domain. ClamAV detection and ML classification strongly indicate malicious intent, specifically identified as a phishing trojan. The presence of embedded links and the overall structure suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://mezovuduw.ru/strik?utm_term=3500+calorie+meal+plan+bodybuilding+pdf
    • https://cdn-cms.f-static.net/uploads/4452376/normal_6036fb81b0d35.pdf
    • https://cdn-cms.f-static.net/uploads/4389354/normal_6023ec5275af9.pdf
    • https://cdn-cms.f-static.net/uploads/4383149/normal_605a74b21f26e.pdf
    • https://zivazumuwekaf.weebly.com/uploads/1/3/2/6/132695746/vebikez-denakevomufe-bipizuken-nokuz.pdf
    • https://zifakilis.weebly.com/uploads/1/3/2/3/132302733/e5f958a6af8e4e.pdf
    • https://sulogaxelope.weebly.com/uploads/1/3/1/4/131438888/6d6799.pdf
    • https://cdn-cms.f-static.net/uploads/4481516/normal_5fe664b19084b.pdf
    • https://sifegofariwe.weebly.com/uploads/1/3/1/4/131437131/xepux.pdf
    • https://veranaza.weebly.com/uploads/1/3/4/6/134665567/resexeratisuvoto.pdf
    • https://vizosajigu.weebly.com/uploads/1/3/1/3/131381839/kudem.pdf
    • https://tunegize.weebly.com/uploads/1/3/4/5/134500295/4589454.pdf
    • https://lawuzifelive.weebly.com/uploads/1/3/4/0/134041442/kozewofuwiri-muzum-dogasosuwixo.pdf
    • https://fenanasu.weebly.com/uploads/1/3/1/3/131384656/noxisofatika.pdf
    • https://zefuriduzowav.weebly.com/uploads/1/3/0/7/130740504/7235770.pdf
    • https://povaxabo.weebly.com/uploads/1/3/5/9/135976235/jenasiwobuga-birebokuroj.pdf
    • https://static.s123-cdn-static.com/uploads/4465914/normal_600530113d3a6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/639cb3de-a438-4008-98db-38176e6ae73c/jadupidasefipomulel.pdf
    • https://uploads.strikinglycdn.com/files/0523b1eb-9e68-4aa3-a47e-947f56502b65/700131918.pdf
    • https://uploads.strikinglycdn.com/files/ae37017b-3000-48fe-a977-53ad5ad4f8d5/how_much_does_it_cost_to_do_a_manual_conversion.pdf
    • https://uploads.strikinglycdn.com/files/2f2bfbcd-72cb-45a3-ace3-cc4835c39acb/moxuvezesese.pdf
    • https://uploads.strikinglycdn.com/files/58729b0d-9b7d-4ab9-85d2-f706a92a05b7/lepuvezebo.pdf
    • https://uploads.strikinglycdn.com/files/ea8598a2-d675-4a2e-bcf3-783b2e05ae97/how_to_operate_power_wheels_wild_thing.pdf
    • https://uploads.strikinglycdn.com/files/364af257-8fec-4ef1-a23b-efbc8ea4a5db/hypothesis_testing_example_problems_with_solutions.pdf
    • https://uploads.strikinglycdn.com/files/c439086e-42bb-4d26-a1b9-b07b1693eb0a/lexus_rx_350l_interior_2019.pdf
    • https://uploads.strikinglycdn.com/files/0ed19d1d-df05-475d-bff1-8f8090efd895/what_does_jumping_the_broom_mean_in_marriage.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_off00011c4c.bin
0aac8970a6ae6a95303d548abf03af1ce967470c808553d355c53e73ec11a2a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C4C 5872 bytes
font_01_sfnt_off00013030.bin
12b712bedd24e2c39a6692bb13c67191b033f82769a3105bc04483644048b402		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13030 10892 bytes

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