Malicious PDF — malware analysis report

Static analysis result for SHA-256 70117b4efbd6f878…

MALICIOUS

PDF

81.6 KB Created: 2021-04-27 17:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: cc02df02739285986005379b9111582f SHA-1: 78c3ebd27b7e81d8ca765c9a4d65871c2db91f29 SHA-256: 70117b4efbd6f878686ee40fe8a68156e47a9291a17c01c7ff1cb088e7038e4a
96 Risk Score

Malware Insights

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

The PDF contains numerous external links, including a suspicious URL related to driver's license renewal, suggesting a phishing or scam attempt. The ML classifier strongly indicated maliciousness, and the PDF structure includes a link farm, pointing towards a malicious intent to redirect users. No scripts were extracted, but the presence of embedded URLs and the heuristic firings strongly suggest a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • 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.
  • 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://lozipotod.ru/strik?utm_term=is+there+a+grace+period+for+drivers+license+renewal+in+south+africa PDF link annotation
    • https://cdn.sqhk.co/xezojutatow/gJiehjc/goldfish_pinball_blast_free_online.pdfIn PDF document text
    • http://strahauto.website/1842271214p38mg.pdfIn PDF document text
    • http://bestrongbyg.com/ny_tirsa_rate_manualkux2i.pdfIn PDF document text
    • http://myfirstsite.xyz/45185856442xscos.pdfIn PDF document text
    • https://cdn.sqhk.co/lamiwifa/pijhds7/80423241764.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/ijijdjg/4_pics_1_word_answers_6_letters_horse.pdfIn PDF document text
    • https://cdn.sqhk.co/nixivezez/pvJFcib/watch_asteroid_live_stream.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://9df6fdd8-df71-43fb-87ad-b121b2de7416.filesusr.com/ugd/e0d0cf_1793d7b27bb64dcdac94a545573b5877.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bofake/math_worksheets_grade_8.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/casuarina_glauca_prostrate_form.pdfIn PDF document text
    • https://d2faa26e-66ca-44cd-8f84-883624a71019.filesusr.com/ugd/dbbfd0_c44d57d0fc1e49d68cfbe49478b99695.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fajujiju/finexirodigogomijusuxi.pdfIn PDF document text
    • https://510adc33-753b-44c0-977e-8d34da8fcdd4.filesusr.com/ugd/5f4192_c99feebf0c404d06a029a20c091311b4.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/84969941757.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/67448698810.pdfIn PDF document text
    • https://0503187d-52cd-4237-9521-a3cb9bf551ae.filesusr.com/ugd/5bb01c_e05124c1ffdf41d1b45177418b8bac3c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/patotale/abc_english_learning.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/lutovekaxukixeru.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/67946398769.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/felt_board_stories_preschool_templates.pdfIn PDF document text
    • https://6c9aa500-f8d9-42a6-b8a4-5b3c562bbfc3.filesusr.com/ugd/543886_530accc5d3b84c22b78f102ed400c3ae.pdf?index=trueIn PDF document text
    • https://3c4962d9-41f7-4f14-8396-dad57cc8de20.filesusr.com/ugd/a2de88_a8c28f62b34040778e36789508d467e2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/tenexenigowu.pdfIn PDF document text
    • https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_1f0573c33ab349b285623eebae58d2de.pdf?index=trueIn PDF document text
    • https://9e705916-5bde-4eb8-be9b-8b3e910fbaf8.filesusr.com/ugd/c7a620_6362c03d79ad49d1a491284beb355da4.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0BD 5388 bytes
SHA-256: 73409fcb46cf9551de6e92029880e62aa4ea7ef47ffd7ba925b5f6c2243820e2
font_01_sfnt_off00010315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10315 10728 bytes
SHA-256: 76878f3ea32d9b1b901b711848cc1191415d51742a0e797cf26881097a98f702
font_02_sfnt_off000127d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127D2 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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