Malicious PDF — malware analysis report

Static analysis result for SHA-256 e79bb693e7369802…

MALICIOUS

PDF

75.9 KB Created: 2021-03-20 18:54:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: bfad870d0add3ef6b5a2957fa03d5aa8 SHA-1: 9036571d36505dec8ccbc730d300c925c9803b48 SHA-256: e79bb693e7369802d6b057ecac4070d50052dee5f66043215c1e8bdae4348e52
156 Risk Score

Malware Insights

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

The PDF file, disguised as a service manual, contains numerous external links, a common tactic for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. The presence of embedded URLs and a link farm suggests the document is designed to redirect users to potentially harmful sites, likely for downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/wix?keyword=honda+gcv160+mower+service+manual PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/debiwelof/68875972458.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6851e9d0-ce54-47ef-b60a-39f3b7d2b0ea/bapamusesigekopuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b32b4d3-3b46-470d-92fb-ab125d2f532f/deepak_chopra_quotes_path_to_love.pdfIn PDF document text
    • https://264cdfe8-48fc-440e-bff3-938583425051.filesusr.com/ugd/cd20dc_40847e6790b54fd98c5f1abaeae1a3a6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e386197c-46b9-439c-b2c8-ced1fee810ab/how_to_reset_ice_maker_on_lg_fridge.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/how_to_focus_bell_and_howell_projector.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10f9d28e-d5cc-430d-b2e0-1a119bb4fb77/articulo_117_de_la_constitucion_politica_mexicana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b60c68d3-75d3-4bef-b84a-9638106cf806/56375638607.pdfIn PDF document text
    • https://cc652f91-b1ab-470c-b36f-46d838ef85b2.filesusr.com/ugd/fbccce_a0b0cd21643d425fa558f67cf1fe8dec.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/brackish_water_aquaculture.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/guidewire_stock_news.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/danby_mini_fridge_parts_canada.pdfIn PDF document text
    • https://8ac5c8e1-9174-427d-95c2-90bebb9f105a.filesusr.com/ugd/44b221_11db85a480cc4fec9e6f56a09d753df2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/widetunipet/erik_satie_trois_gymnopedies_sheet_music_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/mulavimekebikinefixadume.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/23723055823.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/ge_spectra_oven_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65276921-299c-4024-86ef-783dd32c7adc/jijumamegife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab6153f1-55c3-4ce0-baae-3f4db136b98c/23948818162.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/30246794596.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/beleske_jedne_ane_momo_kapor.pdfIn PDF document text
    • https://ddb281da-11d2-423e-b83a-408ecf1f607f.filesusr.com/ugd/9db61c_34af878b03c446cb854a91d4d6bc5d31.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE794 5720 bytes
SHA-256: 2bb6f0f39c7c5723375ca4423152a9e423871c1acb4b752d2cdfaba60a7b4230
font_01_sfnt_off0000fb10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB10 10948 bytes
SHA-256: 5ff0b8561f6d9b5b0aa1f11caa43552b951d4532b822dadcb699e55054f4ed2e

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