Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c7146d5a45676df…

MALICIOUS

PDF

75.6 KB Created: 2021-03-26 08:17:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8e78c616c8a73ba40badec83bc696855 SHA-1: 9c42b7d14f04f805f5ca23481900c631852aa696 SHA-256: 6c7146d5a45676df50e3e490cc54f19a95697942bc8aaecb0ad3ad059cfcf095
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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://pelibifir.ru/strik?utm_term=is+greenworks+pro+a+good+brand PDF link annotation
    • https://pijolonaponezu.weebly.com/uploads/1/3/4/8/134879261/e8817f74aca0.pdfIn PDF document text
    • http://static-get.top/25379245947nqde7.pdfIn PDF document text
    • http://migriruy.ru/basic_linux_networking_commandsj9lyt.pdfIn PDF document text
    • http://websporizlehd.com/12341632958txmtu.pdfIn PDF document text
    • http://aycotoro5.xyz/what_is_visual_aids_in_easy_wordsl5ov4.pdfIn PDF document text
    • https://mafexanilexa.weebly.com/uploads/1/3/0/7/130739060/35e364078e88f33.pdfIn PDF document text
    • http://pushbiz.fun/refadqnz3y.pdfIn PDF document text
    • http://lifeit.pro/mtransition_zoom_crackcreez.pdfIn PDF document text
    • http://amandeepsadyora.com/32134037606cyzxn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://329f26c8-0235-4118-8622-173d264d9cf1.filesusr.com/ugd/221f3a_16b6c67fc80742c79ec5fd774e514511.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/rodovaxiribifikogo.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/kindle_format_converter.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/rotetidapuxijelixamu.pdfIn PDF document text
    • https://10bc5e17-7652-4c7e-9b43-999b3eb3b021.filesusr.com/ugd/5edc69_34767da36d484e12afa61146bbe2121d.pdf?index=trueIn PDF document text
    • https://94db4134-5784-44c5-a63d-963e509970fa.filesusr.com/ugd/9c58c5_ce18ebb54ab84e98aaa4660f4e711604.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/fanitagujaxonekaximu.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/66067939698.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/pivokupom.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_off0000ea1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1C 5328 bytes
SHA-256: 8443581eb35e2bcf781270a625a2c4dd59f92e02d175271d01b0632f1b52cf5c
font_01_sfnt_off0000fc60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC60 10916 bytes
SHA-256: 8b261c2b1a7d3fd4b712ade63468cb4d26e171e4ba8dadaca93e91bc8c90e01f

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