Malicious PDF — malware analysis report

Static analysis result for SHA-256 2717167dd097e231…

MALICIOUS

PDF

68.7 KB Created: 2021-02-16 23:45:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: ff55a33bd468edf6613b5c751aa88b4b SHA-1: c73157deb1e7b7b6b7aa33ed9f7043b062f8f1f5 SHA-256: 2717167dd097e2312c288dd30482377a6d861f73c1a2326c8c7f44d75a82625f
96 Risk Score

Malware Insights

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

The PDF document contains embedded links and text that mimic a product listing, likely as a lure to direct users to malicious websites. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, with one pointing to 'https://jottigo.ru/strik?utm_term=intermatic+st700w+-+digital+in-wall+timer+switch'. The ML_NYX_PDF_MALICIOUS classifier strongly suggests malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/strik?utm_term=intermatic+st700w+-+digital+in-wall+timer+switch PDF link annotation
    • http://chambreapp.xyz/30751343784kxsd7.pdfIn PDF document text
    • http://lianhua.life/zuguvozokusonalopef6ee4r.pdfIn PDF document text
    • https://nasavizar.weebly.com/uploads/1/3/5/3/135322571/fa58342a671b.pdfIn PDF document text
    • https://luwegojozokozop.weebly.com/uploads/1/3/0/9/130969796/073e9b0f399ebb1.pdfIn PDF document text
    • https://kuzosilu.weebly.com/uploads/1/3/2/8/132815793/37dab11ae479df.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://s3.amazonaws.com/daniwodug/15785180159.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/87963401490.pdfIn PDF document text
    • http://rewogaki.rf.gd/believer_lyrics_video_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/international_marketing_research_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/15083392113.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/31095625845.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/nalogoxex.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/36680046002.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/ajmer_shatabdi_platform_delhi.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/99954103742.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/grade_5_3d_shapes_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gomaxod/automated_logic_webctrl_6._5_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/staples_label_5160_template.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/74148119626.pdfIn PDF document text
    • http://varoniwarovez.rf.gd/cell_membrane_and_cell_transport_notes_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC090 5316 bytes
SHA-256: 685d3882d2c219a68b6cc54000933f67259517be96737c9c38cba082d43bd7f5
font_01_sfnt_off0000d280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD280 11088 bytes
SHA-256: 08e38ebe3979bdbd02da14a0ed707f601359ff47e937d74f2fe7e6f8c7eb6282
font_02_sfnt_off0000f73f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF73F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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