Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cb59838206739e9…

MALICIOUS

PDF

69.2 KB Created: 2021-02-21 12:00:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: df42364bf92aed2b747844956154d062 SHA-1: b31c6f29b1ba9e2d114e77e58af6a7454ca4e6e4 SHA-256: 2cb59838206739e903fa94bac3092f1a9327053981e5a2f50a0e766a82af8903
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://crophysi.ru/wix?keyword=6-pack+stove+in+a+can+cells In PDF document text
    • https://modulofironufi.weebly.com/uploads/1/3/4/4/134402713/tudazu.pdfIn PDF document text
    • http://sfr-webmail.com/10767265345p1ibt.pdfIn PDF document text
    • http://xviiivbgz.com/363744217583t8fc.pdfIn PDF document text
    • https://dudegakabiwuzab.weebly.com/uploads/1/3/1/4/131406663/birevotomepo-kuwujeloz-vamix-pulixidijon.pdfIn PDF document text
    • https://visofamawuri.weebly.com/uploads/1/3/2/3/132303269/rikumizuziwegof.pdfIn PDF document text
    • https://dudunetexuzo.weebly.com/uploads/1/3/1/3/131379759/8c64d2fd54d1a.pdfIn PDF document text
    • https://jomefexud.weebly.com/uploads/1/3/4/7/134732593/fabodoxalad_zepeniretusaxil_lomuvi.pdfIn PDF document text
    • http://youla-24.cc/rastrear_mi_celular_android_robadocxup9.pdfIn PDF document text
    • https://nuvarimo.weebly.com/uploads/1/3/1/3/131378817/fonidifevakod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/spelling_rules_for_plurals.pdfIn PDF document text
    • https://s3.amazonaws.com/vavejijitatofu/rasuxaludazun.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/dositefexarubo.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/xagebusozumodibufutuludev.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/18486434206.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/xenuguwagetutaluwagumar.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_off0000d215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD215 5048 bytes
SHA-256: d10564dca36a9ada7242decb9f84a94f0850e0c9d7d58e36a4f790177e9ec3a0
font_01_sfnt_off0000e363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE363 11056 bytes
SHA-256: 6f3fc19de5fea389e0c5388b5a8bf9494c162958250362fc2865e59e7c74071b

Open this report in the interactive analyzer, or submit your own file for analysis.