Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2ee462fae65d7c…

MALICIOUS

PDF

73.3 KB Created: 2021-01-13 17:33:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 5ab52ac5f6a702f3b686fb698f6a1931 SHA-1: 7ba87d89647c9fc46c53377519ec2e6b74145a7e SHA-256: 1d2ee462fae65d7c4f8530b30c88f7a98c96de87a64324af517564f5e66ed7a8
134 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body contains text related to 'rental agreement format pdf bangalore', suggesting a lure. An external URI points to 'trafftec.ru', which is likely part of the attack chain. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://trafftec.ru/aws?utm_term=rental+agreement+format+pdf+bangalore PDF link annotation
    • https://jukatuve.weebly.com/uploads/1/3/2/7/132741058/timogogojezefeve.pdfIn PDF document text
    • https://neletataw.weebly.com/uploads/1/3/1/3/131398134/nevajezo.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/4984637.pdfIn PDF document text
    • https://kibolimu.weebly.com/uploads/1/3/4/8/134872751/19033a95df67c7.pdfIn PDF document text
    • https://fivugolukebil.weebly.com/uploads/1/3/4/9/134902908/vofuwekiba.pdfIn PDF document text
    • https://dinelelulom.weebly.com/uploads/1/3/4/3/134308509/cb94ce141c6.pdfIn PDF document text
    • https://divuvefa.weebly.com/uploads/1/3/4/7/134759037/kufov.pdfIn PDF document text
    • https://wexopusipomela.weebly.com/uploads/1/3/5/3/135313487/kigogapovaje.pdfIn PDF document text
    • https://bupaduzisi.weebly.com/uploads/1/3/4/4/134475958/sagowuvu.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/dixaleko/67737275675.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/bibliography_format_for_project.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/95913696207.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/tosakuredorifogufetesodu.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/74403953337.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE196 5328 bytes
SHA-256: 571d6bf5a427e78d3733d2ed38952dc9cc8bb3042e27970f62d40a8e6de6580b
font_01_sfnt_off0000f3a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A7 10840 bytes
SHA-256: 498d3fda01bf21d41df3cbf0b77f608c917624aabc6ab73188a06ae722ef67e3

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