Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e6064413e18c1d8…

MALICIOUS

PDF

67.6 KB Created: 2020-12-17 15:09:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a9d2bddbc49d82254524f7f5f1fca7b0 SHA-1: 1ec11528a98f1c5ba98cac8a64ea6fe12ea63b1f SHA-256: 1e6064413e18c1d8ac9d7d8576d5313d92af7416d482a59f4c21f12a051ec98d
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with at least one identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' suggest the document is designed to lure users to malicious sites, likely for phishing or to download further malware.

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
  • 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.
  • 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://cctraff.ru/123?utm_term=iceborne+launch+time In PDF document text
    • https://govonomuvilikiw.weebly.com/uploads/1/3/4/6/134620083/7749967.pdfIn PDF document text
    • https://foboxujegi.weebly.com/uploads/1/3/4/6/134694162/21ed8777.pdfIn PDF document text
    • https://gamunuza.weebly.com/uploads/1/3/4/6/134632958/zodazofozo-kuwapamawugez-rabadeterow.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/5fc54a99f7cf8c754047cbac/t/5fcac51ba004d41b30b0e4d4/1607124252418/rulozubetopu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce6875d6187425289b36a4/t/5fd1917e871f8c6e5956422d/1607569791908/aarp_spider_solitaire_card_games.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e0c67848ba205d186e02/t/5fc2d1f8f8cdb769c640cf7a/1606603256382/falcon_crest_cast.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b6c78787e8798971b212/t/5fce9a5bfdebce1f9cef67d2/1607375452574/street_basketball_world_league_mod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3b7d50a2757459bf48cbe/t/5fcbe84f1880ce05e858548e/1607198799452/71453861293.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c63dd26ff1194f8cbdd0/t/5fccc953f94b6402b2182959/1607256404247/super_smash_bros_ultimate_bomberman_music.pdfIn PDF document text
    • https://s3.amazonaws.com/soxukowotomaj/24986805853.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/zojow.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/friends_font_generator_transparent_background.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 3

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_off0000cdb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDB5 4936 bytes
SHA-256: f8847e7a1228d23164ab1d5ef23b1f432090b2729ac5e510d27025f829267cca
font_01_sfnt_off0000de53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE53 10488 bytes
SHA-256: 6776dd7e732de8ec3185e350ce12b9c7f42189a8d410ffabd14c12973041003e

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