Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e75922e7d209f4e…

MALICIOUS

PDF

63.9 KB Created: 2021-02-14 18:41:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e78f6a3e7923574e01e1cfcaa27115a5 SHA-1: 35167b78cc73b90ae1b3b56b150c4dd357b60c20 SHA-256: 5e75922e7d209f4e423bbe06b25022f829a1d8e63aab9ce0f56f5dd5da49fe44
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wb?keyword=dichotomous%20key%20insects%20worksheet PDF link annotation
    • https://fomilapemarujan.weebly.com/uploads/1/3/0/8/130814088/kumagavatam-suvirumopesajip.pdfIn PDF document text
    • https://sozejaras.weebly.com/uploads/1/3/2/6/132695734/nuvidoz_bagozudorove_milibesulop_xotet.pdfIn PDF document text
    • https://dapasubasawesol.weebly.com/uploads/1/3/4/3/134383907/8002735.pdfIn PDF document text
    • http://jigatinapa.22web.org/captain_marvel_coloring_pages.pdfIn PDF document text
    • https://laxepesijuniz.weebly.com/uploads/1/3/1/3/131383562/dexolo_sepuxetufusug.pdfIn PDF document text
    • https://jatomotubaw.weebly.com/uploads/1/3/0/7/130739460/sazisekesetenev.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/5642553.pdfIn PDF document text
    • https://donabetolemi.weebly.com/uploads/1/3/1/6/131637402/rebipunobewa.pdfIn PDF document text
    • https://wojanoxunoliwam.weebly.com/uploads/1/3/5/3/135394081/8633570.pdfIn PDF document text
    • https://tedogiji.weebly.com/uploads/1/3/0/7/130775371/dasurikabu.pdfIn PDF document text
    • https://kozuliwibiji.weebly.com/uploads/1/3/4/7/134705154/250448.pdfIn PDF document text
    • http://gejejok.iblogger.org/57159632995.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://visagiza.epizy.com/xudodefanurapos.pdfIn PDF document text
    • http://kosuvoz.epizy.com/talulovusaxenekosi.pdfIn PDF document text
    • http://laxuzakefojo.epizy.com/81517902663.pdfIn PDF document text
    • http://godimodasixor.rf.gd/43499051559.pdfIn PDF document text
    • http://mubidixosi.epizy.com/sh_cumar_faaruuq_tafsiir_free.pdfIn PDF document text
    • http://dizojavabur.epizy.com/bahubali_audio_songs_tamil_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEE6 5056 bytes
SHA-256: 8446df9d13480a2900a6da24c77ca249b1cb836fee92b9662c6369ffc1aa13b0
font_01_sfnt_off0000d00d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00D 10072 bytes
SHA-256: 45a97ebb2269c1545534fa7109daf79210f1d1f74997cc90949d2aa7c66d7bb5