Malicious PDF — malware analysis report

Static analysis result for SHA-256 897e8110389e867b…

MALICIOUS

PDF

83.8 KB Created: 2021-01-11 05:26:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 29dfb6bc4c1a39d96c1bb93bd25efb79 SHA-1: add49ccd62294c5b9aa57ad819d97a431fd99ec3 SHA-256: 897e8110389e867b298a13c21cd792b3f2e41c92c8d8a0ae88e0216a6240a9f8
156 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing document and a link farm, designed to redirect users to external websites. The embedded URL 'https://traffnew.ru/123?utm_term=hocus+pocus+2+full+movie+free+online' suggests a lure related to popular online content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/123?utm_term=hocus+pocus+2+full+movie+free+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456143/normal_5fa880e254b36.pdfIn PDF document text
    • https://zuduloto.weebly.com/uploads/1/3/4/6/134623707/wuzojupalavixolu.pdfIn PDF document text
    • https://bagirarivevi.weebly.com/uploads/1/3/1/3/131384609/c836058940faac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488090/normal_5fb606b4d09b5.pdfIn PDF document text
    • https://sufudoni.weebly.com/uploads/1/3/4/8/134853368/cdf58d6a8e09.pdfIn PDF document text
    • https://xoregofejaba.weebly.com/uploads/1/3/4/6/134651656/paluripezuf-sajomopedim-dovoj-dutedumagotu.pdfIn PDF document text
    • https://dibotora.weebly.com/uploads/1/3/4/8/134870334/poxapawo_duwiwokokimon.pdfIn PDF document text
    • https://goxutulolikum.weebly.com/uploads/1/3/0/8/130814421/bugiraxemuzoferaro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xomudufe/bts_answer_love_yourself_color_coded_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/tell_me_about_yourself_sample_answer_for_experienced.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/dengue_blood_test_report.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/24032888581.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF2 4904 bytes
SHA-256: e0da202536f495f43be1e7d971db2f1f3e5707fb2b6bfbc2b86658a5f1b765f4
font_01_sfnt_off00010e86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E86 11096 bytes
SHA-256: 9af549ff7b8c958b2b55ae1febb8801c841e6be71edd4cbec1cb001a73826ce3
font_02_sfnt_off00013455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13455 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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