Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ced0ac1043976a7…

MALICIOUS

PDF

80.6 KB Created: 2020-12-01 05:08:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 0dcedbeba37039cf19a0778815ab37e7 SHA-1: e4a59770909083c0dfab5cb05ef29eb163551585 SHA-256: 1ced0ac1043976a71a359dd31871d8c9553c609531607114ce17bf03810adc64
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://traffset.ru/strik?utm_term=how+far+back+should+jobs+go+on+resume PDF link annotation
    • https://fiduwovizeget.weebly.com/uploads/1/3/4/5/134517619/7296420.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e2a1ec917750a3d7d2c6/t/5fc3ed853570fb44d17c3376/1606675846398/91044340426.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3817916f6d44b07cf1e26/t/5fc581955147b14804ee5986/1606779290352/visit_all_pirate_camp_locations.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0a431972c46e3c6660fe/1606289987869/13813916053.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc169478139af037648d9ed/t/5fc4d5034e98326c02a9168f/1606735107953/13439948727.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc01425c6d96458361db408/t/5fc16d642dd96f5918251c72/1606511972546/presbyterian_usa_liturgical_calendar_2019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf14c2edfcd2bda90684e/1606218060641/half_moon_bay_high_school_bell_schedule.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06cfc27a199023ab2e458/t/5fc4343e61e25426e1bd4a86/1606693950453/furious_7_full_movie_free_online_in_english.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf48bb4e98326c02068519/1606371516839/1500_watt_amp_monoblock.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2e03b1c8c7413143ed9a1/t/5fc3e149173fb5383b1aade2/1606672717870/22043837304.pdfIn PDF document text
    • https://s3.amazonaws.com/regegozumekoza/pufusesuwodemobujus.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0b5bec30a162e0c519083/t/5fc1f7c8145a8629dcf68190/1606547400567/9780505041.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf509efa04221c7116f722/1606373536574/31829236270.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e0f3f7cf8c75402ad020/t/5fc0fbbff81c9a2a0cc5553e/1606482883001/pusukimevaxutol.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE46 5768 bytes
SHA-256: 164abbf361a535e2b4c44ea676eeb495482d701e44098398756e56495815b284
font_01_sfnt_off000111db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111DB 10680 bytes
SHA-256: a149d285acbd1dea4a735c4e246b915f6e86e4c154402632906e1bf3b7a6b3e8

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