Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5b6507e8d5fcef…

MALICIOUS

PDF

67.2 KB Created: 2021-02-12 22:37:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a07762959bbfc1c9930f74e760e998f1 SHA-1: 43a4ab64195743901bc17a7f2e6df7964f49a857 SHA-256: 0d5b6507e8d5fcef790bf8ee1b125ea49ff270a1834d005be176b81d98b72b3b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jottigo.ru/wix?keyword=bonaire+navigator+evaporative+cooling+manual PDF link annotation
    • https://labelamujevodit.weebly.com/uploads/1/3/1/6/131606697/6240940.pdfIn PDF document text
    • http://sajutasure.22web.org/chottanikkara_songs_free.pdfIn PDF document text
    • http://sanezukevuzav.iblogger.org/florida_bar_cle_reporting_cycle.pdfIn PDF document text
    • https://bagobizofenagex.weebly.com/uploads/1/3/4/7/134767931/tumemoba.pdfIn PDF document text
    • https://nokojuponamipi.weebly.com/uploads/1/3/4/8/134891784/mixesovab-wusuxof-tujor.pdfIn PDF document text
    • https://rojogude.weebly.com/uploads/1/3/4/3/134396813/8237d85799.pdfIn PDF document text
    • http://kudivesufum.iblogger.org/tunojenu.pdfIn PDF document text
    • http://jowopejev.22web.org/13741405640.pdfIn PDF document text
    • https://fatatarulawug.weebly.com/uploads/1/3/4/4/134474158/4079231.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://piwefijegiv.epizy.com/arc_length_in_parametric_form.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/60807694409.pdfIn PDF document text
    • http://xupubuxasaf.epizy.com/45425521400.pdfIn PDF document text
    • http://zabamaxe.rf.gd/75390310379.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/negovovo.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/71723961146.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_off0000cba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA7 5184 bytes
SHA-256: 597884eb14744fb3ddba1b2a99a4b91cb35a249dcfdb276865db166e7614945b
font_01_sfnt_off0000dd45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD45 10060 bytes
SHA-256: b202cf39fbab80d8a72243f96d77baf2da6ff7a9f673080f2c4d2f8ce669afe2