Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aa5481602894c58…

MALICIOUS

PDF

68.8 KB Created: 2021-02-14 21:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 329abe271f78a057940c7ab1e9a527fb SHA-1: 938cf86affd36fabba328bd4b0a67d0e5f1e53f8 SHA-256: 5aa5481602894c58b2da98bd580b959e88c4621163681e12a7855aef43410ebb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=spider+man+unlimited+hack+apk PDF link annotation
    • https://litisenos.weebly.com/uploads/1/3/1/0/131071047/vimitororik_rutavidudalam_xasuzajowokogar.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/jfH2jhL/9613905237.pdfIn PDF document text
    • https://jamelowo.weebly.com/uploads/1/3/1/6/131606155/kuzixow.pdfIn PDF document text
    • https://welomutulek.weebly.com/uploads/1/3/4/8/134873792/dukajujirusitumimu.pdfIn PDF document text
    • https://rakuwogu.weebly.com/uploads/1/3/4/8/134858672/3254855.pdfIn PDF document text
    • https://cdn.sqhk.co/xiroxozalal/fMh04ib/52317719424.pdfIn PDF document text
    • https://cdn.sqhk.co/dusivubeleza/jcbjggf/toputal.pdfIn PDF document text
    • http://manaxupupili.iblogger.org/factoring_methods_cheat_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/hg5VjaS/zupuximezineje.pdfIn PDF document text
    • https://revuduxaj.weebly.com/uploads/1/3/5/3/135333309/kexisokuxotilagaba.pdfIn PDF document text
    • http://didifofovura.iblogger.org/latest_movies_2019_hd.pdfIn PDF document text
    • https://tumunonapuve.weebly.com/uploads/1/3/1/3/131379134/905940.pdfIn PDF document text
    • https://zukodefikarux.weebly.com/uploads/1/3/4/4/134498552/2c7b268.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/3v7wR96/car_crash_simulator_royale.pdfIn PDF document text
    • https://nujatorub.weebly.com/uploads/1/3/1/8/131858108/8fb9658.pdfIn PDF document text
    • http://bodatajusabobof.22web.org/triangle_interior_angles_worksheet_answer_key.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rebikesumusosu.rf.gd/antivirus_avast_gratis_para_pc.pdfIn PDF document text
    • http://fufezexu.epizy.com/pomuwivomuvetiwoxedutake.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_off0000d2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D5 5300 bytes
SHA-256: 5f6cf07e3767fad7d214822729a515be7ba3b5730e305796f5583f9e4b762090
font_01_sfnt_off0000e4ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AB 9852 bytes
SHA-256: 751ed8a4ada2b5ebfdd9793ec1d3ae095571158e5ae9c1e35a7ed93c22535a99