Malicious PDF — malware analysis report

Static analysis result for SHA-256 747321397ac7538a…

MALICIOUS

PDF

75.8 KB Created: 2021-02-19 02:30:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 82e0622229461d094434f9beca73f392 SHA-1: 4244a4f0872d497757bb3a4fcdb141f9faea1352 SHA-256: 747321397ac7538a58900263de28ac56182da5b5cd3deecdde00a19dfed7de8a
126 Risk Score

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 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/aws?utm_term=beginner+english+speaking+topics PDF link annotation
    • http://wwwbcpzonasegura-viabcp.com/gunshot_wound_to_face_icd_10z8p99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4531626/normal_60205f1a93685.pdfIn PDF document text
    • http://gufutaca1.xyz/aashiqui_2_songs_full_hd_1080pv0ort.pdfIn PDF document text
    • http://agent-ritual495.online/furoratujet360ua.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381534/normal_5fcca3f4b0cb0.pdfIn PDF document text
    • https://kotazadan.weebly.com/uploads/1/3/4/3/134349323/3037553.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/RKszage/piviwinapunuzuwawidur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373776/normal_5fe9148b873cd.pdfIn PDF document text
    • https://cdn.sqhk.co/legikowe/ySjikhf/3669213757.pdfIn PDF document text
    • http://momijuluxesapek.iblogger.org/jumbled_sentences_for_class_6_with_answers.pdfIn PDF document text
    • http://bepebeku.22web.org/free_printable_room_rental_agreement_template.pdfIn PDF document text
    • https://bugevokugado.weebly.com/uploads/1/3/4/8/134870551/wetubofuruxudolov.pdfIn PDF document text
    • http://discovljzg.fun/live_five_theatregifg5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fudewalazakukug.epizy.com/equifax_web_email_dispute_form.pdfIn PDF document text
    • http://kezasifofajimo.rf.gd/why_does_my_smoke_alarm_keep_beeping_randomly.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_off0000edd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD0 5308 bytes
SHA-256: cc1b742b029e3afe14dc36e93ed4f2ad3ac1796c5b6b75f501922a0432863376
font_01_sfnt_off0000ffde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFDE 10088 bytes
SHA-256: 0e2861a0e36cebe2882e1764e4d3b2e88b4c9219173dc9704aa1ddd42b87ef8f