Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9090e867e648dde…

MALICIOUS

PDF

81.2 KB Created: 2021-01-13 17:19:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 7daf711bdd751f176a5d2c0f92a1a4cc SHA-1: 77dd0686480459ee5616beca7250e57b2f7dc8f5 SHA-256: e9090e867e648ddeb1b9d78d68327ef78767cb5f1d1993e845470ff8dcfca4a0
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with critical heuristics indicating it redirects to known malicious infrastructure and is part of a link farm. The document body, though heavily obfuscated, contains text related to a 'pathology report breast cancer', suggesting a phishing lure. The presence of embedded URLs and the nature of the heuristics strongly indicate this PDF is designed to redirect users to malicious sites, likely for phishing or malware delivery.

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
  • 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://gettraff.ru/aws?utm_term=reading+pathology+report+breast+cancer In PDF document text
    • https://furutivox.weebly.com/uploads/1/3/4/3/134360368/tobuza_fupid.pdfIn PDF document text
    • https://vegipojefatelon.weebly.com/uploads/1/3/4/8/134876486/fijab-sedaru.pdfIn PDF document text
    • https://tijujuvuxerupuz.weebly.com/uploads/1/3/4/2/134236121/lobolive.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482191/normal_5fbf182185519.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/ghDgeib/lomulepafefuvogimuzolu.pdfIn PDF document text
    • https://lafefozusut.weebly.com/uploads/1/3/4/5/134597047/b5b26a89e228b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374364/normal_5ff81d86b61f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/68901956516.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/baminefuzolumitajijedagaj.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/star_wars_battlefront_2_bespin_platforms_map.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/judujugawozegukuwove.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/bing_video_game_of_thrones_intro.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/mp_online_b._ed_application_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/mizopasazip.pdfIn PDF document text
    • https://medlineplus.gov/breastcancer.htmlIn 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_off0000ff93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF93 5584 bytes
SHA-256: 215cba31b522867c5ebd3ffa4814db7838d46da26271905b9008da4ec4696511
font_01_sfnt_off00011293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11293 10920 bytes
SHA-256: 3f77ecf0f7583c99465206637158b362acfb22da48e7788d6ee9f296cd94dffc

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