Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b95bd0ca0f46819…

MALICIOUS

PDF

71.9 KB Created: 2021-02-17 06:52:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 77a46d0eb3a85c33fd53753b3106d40c SHA-1: 23b00ce24e06afaad0ee88ecd8a529029614b130 SHA-256: 5b95bd0ca0f46819fc79f9dceab1824dd80716b02dd3ec58bc9feaa286dd1942
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://jacksth.ru/wix?keyword=ponydroid+apk+full+2018 PDF link annotation
    • http://dusosax.66ghz.com/34318765507.pdfIn PDF document text
    • https://sowibize.weebly.com/uploads/1/3/5/3/135348762/lujade.pdfIn PDF document text
    • http://fegalaro.iblogger.org/42327607523.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453338/normal_600de19d68aa8.pdfIn PDF document text
    • https://linabodaku.weebly.com/uploads/1/3/1/1/131164293/937662.pdfIn PDF document text
    • https://xetetikagidol.weebly.com/uploads/1/3/5/3/135308020/garujezutexa_zitibiguvi_vizamazar_tevatenetikaru.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://lebekuwawelu.epizy.com/ribilowoduwekiveluno.pdfIn PDF document text
    • http://badokelo.rf.gd/zimaruvozemanugezigexu.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/20948653024.pdfIn PDF document text
    • http://zobovobewuw.epizy.com/ielts_listening_13_test_1_answers.pdfIn PDF document text
    • http://kisuvixoj.epizy.com/nagubodatuzirosid.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/shawn_mendes_songs_free.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_off0000cf26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF26 5228 bytes
SHA-256: 52f5fdf6f11478aeb82a06ccd98e4bdfabad1fc9c313b750a1d79bf92cd0b13e
font_01_sfnt_off0000e0f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F1 10472 bytes
SHA-256: ffe7b622d2871dc32774e2f55c41e50d41cea8e56d36ec278a74312762ceee37
font_02_sfnt_off000104bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104BC 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3