Malicious PDF — malware analysis report

Static analysis result for SHA-256 1810f0474bfdb7d8…

MALICIOUS

PDF

73.6 KB Created: 2020-12-15 08:31:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46489275d7ff3fc869b51d3dae887936 SHA-1: e8ee5aeda62fa4d7ebf7712bc85aa6a1edb5d0e9 SHA-256: 1810f0474bfdb7d85618f756032f81bbf86e431196cdcdbcdae917a7188a260d
254 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of an advance-fee scam, containing lures related to prizes or parcel deliveries. It includes a link to a known malicious redirector, indicating an attempt to lead the user to harmful content. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://gettraff.ru/123?utm_term=sharper+image+convection+oven+recipes
    • https://bulububurelet.weebly.com/uploads/1/3/4/7/134742815/dovug_wifirukif.pdf
    • https://cdn-cms.f-static.net/uploads/4370055/normal_5f8c4c1cb6384.pdf
    • https://cdn-cms.f-static.net/uploads/4483070/normal_5fc2a5a6eabe4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fc14581c89e1c4b8fc0e725/t/5fc4f9713485235c86623eca/1606744434220/kesekifutapig.pdf
    • https://s3.amazonaws.com/pokorevalaxex/wavurukep.pdf
    • https://s3.amazonaws.com/visagogijulep/decimal_to_fraction_worksheet_grade_4.pdf
    • https://s3.amazonaws.com/litunux/objectives_and_functions_of_wto.pdf
    • https://static1.squarespace.com/static/5fbfdd38a3bf4b14aba341ea/t/5fc15a2b5147b1480465ddf0/1606507054540/veviwoxedubab.pdf
    • https://static1.squarespace.com/static/5fc59ce5c89e1c4b8fdeae25/t/5fd1b8fa871f8c6e595b4978/1607579900113/dominos_delivery_charge_coupon.pdf
    • https://static1.squarespace.com/static/5fc133802cf09257bd6dffa3/t/5fcf92e269d6d06d5545ee35/1607439074628/49976967400.pdf
    • https://static1.squarespace.com/static/5fc0f319ab79f442f229e2d8/t/5fc18fe66457125654777732/1606520807809/full_movie_of_coraline_free.pdf
    • https://static1.squarespace.com/static/5fc2c9392bbd74065812d409/t/5fc481483c6ccf69f3ef663e/1606713676150/tcc_campus_map_virginia_beach.pdf
    • https://static1.squarespace.com/static/5fc4dba692c50b1a1e90d5f6/t/5fc9a1039bc93d20d9a95ade/1607049476752/english_songs_lyrics_download_mp4.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf537f3de5e49b529bebc/1606284600029/digestive_reviewing_vocabulary_worksheet_answers.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e281.bin
e4e406232347e1c7e9bf6b568287ef800a6a6343599dcf87620f1963d1b73341		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE281 5476 bytes
font_01_sfnt_off0000f500.bin
e2600f19cc307ba1944232692a3ea358ee93dac959ccba34437afa25765ca441		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF500 10644 bytes

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