Malicious PDF — malware analysis report

Static analysis result for SHA-256 36ea8218091aa162…

MALICIOUS

PDF

67.8 KB Created: 2021-04-06 04:30:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 46f9dcd3cc7e8fef71a89b3f220649e6 SHA-1: 10c823df32ac7cbc29e07f481514d951328feb60 SHA-256: 36ea8218091aa1629b607d598d651e0e6143533d7e31a58801f7b823ef0547ea
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with at least one pointing to a suspicious domain ('ponafet.ru') and another to a link farm ('tokexal.medianewsonline.com'), suggesting a phishing or malware distribution lure. The PDF structure and embedded content are consistent with attempts to disguise malicious links within seemingly legitimate documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/award?keyword=catalogue+contactor+schneider+pdf PDF link annotation
    • http://tokexal.medianewsonline.com/54898162040.pdfIn PDF document text
    • http://kumululurug.scienceontheweb.net/9513705661.pdfIn PDF document text
    • http://nefufovej.22web.org/how_to_fix_a_mercury_thermostat.pdfIn PDF document text
    • http://vofigasu.medianewsonline.com/76034809888.pdfIn PDF document text
    • http://kalowodopole.mygamesonline.org/10x12_storage_shed_plans.pdfIn PDF document text
    • http://rakojegad.22web.org/aulularia_completo.pdfIn PDF document text
    • http://betizekaxu.getenjoyment.net/2020_bmw_x3_owners_manual.pdfIn PDF document text
    • http://wanikagupefurav.22web.org/arithmetic_mean_and_geometric_mean.pdfIn PDF document text
    • http://sidumila.iblogger.org/10503208265.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sigenuze.rf.gd/gataxebuxawezowuzotedebo.pdfIn PDF document text
    • http://zosajirigo.rf.gd/channel_tunnel_freight_latest_information.pdfIn PDF document text
    • https://5663e088-3595-439c-971a-5873693bee35.filesusr.com/ugd/e98895_07dff3387de646cf9b6d97411cbdb328.pdf?index=trueIn PDF document text
    • https://9387bd13-3746-4408-b474-2867f26e464d.filesusr.com/ugd/ace02d_f5064cac1a0c4eb5ae85adb554320d82.pdf?index=trueIn PDF document text
    • http://redaxuruzojogod.epizy.com/nurekizakamajuveluzokoba.pdfIn PDF document text
    • https://0926596c-b1e6-4473-87d6-fed2e709bfeb.filesusr.com/ugd/e2a635_e5899f4d1a3f42c8a071a00a49bf4745.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/48d00848-1554-4256-8326-72c3e892d35e/100_questions_to_ask_before_marriage_islam.pdfIn PDF document text
    • http://jakepejeto.rf.gd/lolipanavex.pdfIn PDF document text
    • http://xomezotesojopuv.epizy.com/2846442512.pdfIn PDF document text
    • https://69a21580-3c80-4f81-8097-1ec0bc18215d.filesusr.com/ugd/bd7df1_757e942c207a4605923a14a6cd446551.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6b003b8-7afd-48ab-891d-e42e100fc34e/accelerated_reader_lexile_conversion_chart.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_off0000cef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF0 5320 bytes
SHA-256: dc4eda798700cffe8842709fd2f94c1e837e15e45ffab94511b680a63335412a
font_01_sfnt_off0000e0fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FE 9732 bytes
SHA-256: a5b65b5fdb3bb411fa49b55de2ea4d51ce03d807570760326496950f7de974fb

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