Malicious PDF — malware analysis report

Static analysis result for SHA-256 0649bdc4ad2c79cb…

MALICIOUS

PDF

73.0 KB Created: 2021-02-13 01:15:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: abe1ae25e5a044aab916bad9b78a3a5c SHA-1: a5d641ba9de758ffcb42c31892dd03147c5b0be1 SHA-256: 0649bdc4ad2c79cb702fc92abf823b0094b487486717f5a58eb927c65e791f8f
186 Risk Score

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 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.
  • 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://druttle.ru/wb?keyword=afcat%20question%20paper%20with%20answer%20key%20pdf PDF link annotation
    • https://piborubaladedos.weebly.com/uploads/1/3/4/7/134764427/9219035.pdfIn PDF document text
    • https://xegokefizu.weebly.com/uploads/1/3/5/3/135323464/bc66f603c89df.pdfIn PDF document text
    • https://nopovufarake.weebly.com/uploads/1/3/1/3/131379277/6061902.pdfIn PDF document text
    • https://zedowami.weebly.com/uploads/1/3/1/6/131637063/rebowuwo.pdfIn PDF document text
    • https://davufafelasipip.weebly.com/uploads/1/3/4/3/134328138/sidalozefibas.pdfIn PDF document text
    • https://sibafuguwo.weebly.com/uploads/1/3/4/6/134679660/5615433.pdfIn PDF document text
    • https://texifafotolatip.weebly.com/uploads/1/3/4/7/134764930/55492.pdfIn PDF document text
    • https://lizatupapej.weebly.com/uploads/1/3/4/4/134401074/d066b4f59.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/h4ajchj/lokicraft_2_game_download.pdfIn PDF document text
    • https://turabevov.weebly.com/uploads/1/3/0/9/130968962/natesasewu-xelak-mogevibaxepaki-kefevaxuxa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://magonusu.epizy.com/fujebitutinopifanox.pdfIn PDF document text
    • http://zafagolakogud.rf.gd/additional_insured_endorsement_template.pdfIn PDF document text
    • http://rezazaje.epizy.com/estimating_decimals_worksheets_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/74495524969.pdfIn PDF document text
    • http://segalemu.epizy.com/99340067000.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_off0000df67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF67 5584 bytes
SHA-256: c8087edab7d3af3dddc3ef0e71b13a2cbaca11753b908b03e662860d6c372162
font_01_sfnt_off0000f27c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27C 10752 bytes
SHA-256: 4a95db8e8001a997687eb7a8a857c45021187836fd9b2fd51b3d30643b079b09