Malicious PDF — malware analysis report

Static analysis result for SHA-256 2926d2679221e31c…

MALICIOUS

PDF

78.7 KB Created: 2021-01-28 04:26:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 9f842c3123c8b005efaaea433a47263e SHA-1: 77065eb01684dc1daabc81544b6f470897a63d7d SHA-256: 2926d2679221e31ccd6f9b24330e1100cd36da9b165593d4f9e621340621aaed
194 Risk Score

Malware Insights

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

The file is a PDF that contains a fake CAPTCHA heuristic, indicating a social engineering attempt to deceive the user. It also contains a critical heuristic for linking to known malicious redirector infrastructure, specifically pointing to 'ggtraff.ru'. This suggests the document's primary purpose is to lure users to a malicious site.

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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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://ggtraff.ru/wb?keyword=lynx%20bus%2037%20saturday%20schedule In PDF document text
    • https://static.s123-cdn-static.com/uploads/4467043/normal_5fec2442c7bab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492575/normal_6000bacf8beef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415291/normal_60045ab659fd2.pdfIn PDF document text
    • https://cdn.sqhk.co/xisalaximel/aVhf3Mh/red_vs_blue_wikipedia.pdfIn PDF document text
    • http://runatem.66ghz.com/brother_mfc-_j6520dw_driver_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370089/normal_6002b5c1967c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480886/normal_5febc217bab7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457838/normal_600a4a658cf5a.pdfIn PDF document text
    • https://cdn.sqhk.co/vibebexez/vjbW1aA/85807128289.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
    • http://jofesosozofoso.epizy.com/19859310138.pdfIn PDF document text
    • http://webekilijonelew.epizy.com/bangalore_metro_application_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/48469186053.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/wufixejimokokovuxixux.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/dmarc_email_report.pdfIn PDF document text
    • http://vubalek.epizy.com/lineage_2_interlude_hawkeye_guide.pdfIn PDF document text
    • http://vizulubafaxal.epizy.com/bebasi_dard_ka_aalam_mp4.pdfIn PDF document text
    • http://bixogonabu.epizy.com/69144502674.pdfIn PDF document text
    • http://menutewewunidov.rf.gd/livogamif.pdfIn PDF document text
    • http://juvegebufu.epizy.com/lirinazuwipagosisuvo.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_off0000e73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 5244 bytes
SHA-256: 6728a8f1feeccf3f31df2204938864644aa00e1549c8abfcd470dc654114d45d
font_01_sfnt_off0000f902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF902 11456 bytes
SHA-256: c04352ccdf205c7fc5590b42c7ea785d3a276789fe009f9c8f38c9a79021ff73
font_02_sfnt_off00011ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED7 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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