Malicious PDF — malware analysis report

Static analysis result for SHA-256 72014554482b1ac1…

MALICIOUS

PDF

76.6 KB Created: 2021-03-02 05:53:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 1ba704bb06fad300e2b94a48cc479012 SHA-1: 2cfd3925aeb5d9afea48a5922c32ed5d791fcb45 SHA-256: 72014554482b1ac1d322849da004c0473751a46ff59fbb7b6ed2d57151cbf836
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm used for phishing or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to Medicare claims processing, aiming to trick users into visiting these malicious URLs.

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://fokemale.ru/strik?utm_term=medicare+claims+processing+manual+chapter+12+section+50 PDF link annotation
    • https://gidutuzewefira.weebly.com/uploads/1/3/1/3/131380066/mojexawi.pdfIn PDF document text
    • http://navevukosuso.mypressonline.com/price_action_scalping_download.pdfIn PDF document text
    • http://easylearning.space/how_long_do_duracell_car_batteries_lastbn113.pdfIn PDF document text
    • https://vowawekalumuz.weebly.com/uploads/1/3/5/3/135304311/0963fae592.pdfIn PDF document text
    • https://mawubuzepegi.weebly.com/uploads/1/3/3/9/133989242/bevuvapofalajobal.pdfIn PDF document text
    • http://airet.space/sample_after_action_report_format46lfd.pdfIn PDF document text
    • https://sekagerufelijet.weebly.com/uploads/1/3/5/9/135965199/rirakepuvulikobod.pdfIn PDF document text
    • https://vilawamilufulob.weebly.com/uploads/1/3/6/0/136006615/nudasenog.pdfIn PDF document text
    • http://onsideball.info/resume_template_freepikwmvif.pdfIn PDF document text
    • https://vebunigujop.weebly.com/uploads/1/3/4/3/134367951/disunidetujosog.pdfIn PDF document text
    • https://kazimiposaduvab.weebly.com/uploads/1/3/1/1/131163956/refunazopadenif.pdfIn PDF document text
    • https://pepolugevukur.weebly.com/uploads/1/3/2/7/132740925/83eadac4fa0.pdfIn PDF document text
    • https://gitikaru.weebly.com/uploads/1/3/4/9/134901111/4695696.pdfIn PDF document text
    • https://fezapatinegu.weebly.com/uploads/1/3/4/2/134266508/e81eb66e6b5efc.pdfIn PDF document text
    • https://sodikisug.weebly.com/uploads/1/3/1/4/131437766/5308244.pdfIn PDF document text
    • http://napufokotipo.getenjoyment.net/natuxo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wawutanow.epizy.com/16344388561.pdfIn PDF document text
    • http://visiporogid.epizy.com/jobelavowiri.pdfIn PDF document text
    • http://desovizipelo.onlinewebshop.net/votopuzozelibasaxiv.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_off0000ec5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5D 5944 bytes
SHA-256: 0594054ad9c251676c90f2ef40bafa3670f4d6c72175c069909012624cbd7dd3
font_01_sfnt_off0001007f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1007F 10488 bytes
SHA-256: 3d120bde9ec9c6d343a0f962c068d60d7695533a8bcdf30c64b48bfb8ceaef22

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