Malicious PDF — malware analysis report

Static analysis result for SHA-256 2262063bf3e4802a…

MALICIOUS

PDF

71.8 KB Created: 2021-05-17 07:25:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 7ca3cbf6944669ab14f0a5070797fe4d SHA-1: 96aa90cd5add7293c3e3a413d9428865656e2217 SHA-256: 2262063bf3e4802a981910c79adc2d768a63c55cc1f5bf99128c6cb14624b2e1
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wb?keyword=breville%20toaster%20oven%20air%20fryer PDF link annotation
    • http://javosewo.sportsontheweb.net/writing_task_2_vocabulary_download.pdfIn PDF document text
    • http://tidirakozodawon.getenjoyment.net/triple_bottom_line_definition.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/pezajipevujefe.pdfIn PDF document text
    • http://gapagal.mywebcommunity.org/aeneid_interlinear_translation.pdfIn PDF document text
    • http://zitukuzagipu.iblogger.org/kafilomabudat.pdfIn PDF document text
    • http://peteferix.mypressonline.com/gamagabirofefaxikaze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duguteterexu.epizy.com/avocado_seed_nutrition_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9365c8ac-65d6-431f-97f5-0e32b4bc5606/84376258912.pdfIn PDF document text
    • http://rudozanel.epizy.com/how_to_disable_viper_alarm_with_remote.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/chal_chaiya_chaiya_remix_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6083508b-f69f-4a7a-8765-ffde0b40dd8a/sears_craftsman_air_compressor_parts.pdfIn PDF document text
    • http://pixagikaw.epizy.com/avery_label_templates_for_word_l7162.pdfIn PDF document text
    • http://wijijatalil.epizy.com/motorola_apx_6000_xe_microphone.pdfIn PDF document text
    • http://bubijijesaxo.epizy.com/appsc_group_1_syllabus.pdfIn PDF document text
    • http://bozexefuj.epizy.com/triple_burden_disease_adalah.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/85991810181.pdfIn PDF document text
    • http://nuzuxuzenexeku.rf.gd/focusrite_scarlett_18i8_2nd_gen_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b505f451-a8e8-4a4e-b129-52cb4bb5abe4/9258919832.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/biodiversity_hotspots_in_world.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/632788fc-40a0-45d7-bae8-173a90e7e054/how_to_read_a_note_in_piano.pdfIn PDF document text
    • http://nazonuretowu.epizy.com/bosch_fridge_freezer_repair_manuals.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96b575b1-3778-4f28-874a-f7db4a2d5c18/53304886612.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_off0000dd0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0C 4972 bytes
SHA-256: 3f838b760ec52ebf0c50ec18abdc2e77cf0ab4d24c36fb8caaa63084830fdae8
font_01_sfnt_off0000ee14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE14 10380 bytes
SHA-256: 900cba35b4b377f171fa0f5a6e565964d9bfe738fbca7d6da37e344aa019eef8

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