Malicious PDF — malware analysis report

Static analysis result for SHA-256 719202b9864a558e…

MALICIOUS

PDF

72.7 KB Created: 2021-03-16 05:25:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 191d59f739902e39cbbc0890cec1c3ca SHA-1: e4b2184239abe2151897fd0bcec58061d748c6b5 SHA-256: 719202b9864a558e20fbfeddf0bb2c9621780cc2ab446e5f90eaffdb5f527b63
186 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan distribution attempt. The document contains a large farm of external links, many pointing to disposable hosting, designed to redirect users to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to exploit users through deceptive content and link farms.

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://jottigo.ru/award?keyword=prepositions+of+place+in+the+city+exercises+pdf PDF link annotation
    • https://moxalabukeziro.weebly.com/uploads/1/3/4/7/134772199/mumewuvug-pipiziwelipavax-gajufukaguxuviv-mowugutu.pdfIn PDF document text
    • https://burodepizojeke.weebly.com/uploads/1/3/2/6/132696233/fovabugovojavot_kolipokasini_zonipepig.pdfIn PDF document text
    • http://vozivovog.scienceontheweb.net/mamofojagun.pdfIn PDF document text
    • https://lewobagapu.weebly.com/uploads/1/3/4/6/134666085/nerinu-pivumota-vabofe-vituk.pdfIn PDF document text
    • https://vedirivokezijil.weebly.com/uploads/1/3/4/1/134108565/1249918.pdfIn PDF document text
    • https://cdn.sqhk.co/sozivowemin/hgjigfo/sad_shayari_video_3gp.pdfIn PDF document text
    • https://gariligiradafa.weebly.com/uploads/1/3/4/0/134041078/rebajag.pdfIn PDF document text
    • https://cdn.sqhk.co/jedepazisu/jbD9ggo/20525472505.pdfIn PDF document text
    • https://tuwavufubuxa.weebly.com/uploads/1/3/3/9/133997694/2710024.pdfIn PDF document text
    • http://wapadax.scienceontheweb.net/incertidumbre_financiera.pdfIn PDF document text
    • https://rapovadok.weebly.com/uploads/1/3/4/7/134705404/135140.pdfIn PDF document text
    • https://zakupiza.weebly.com/uploads/1/3/5/9/135960967/8650657.pdfIn PDF document text
    • https://cdn.sqhk.co/zojoguxuban/CpjcBkg/my_city_island_apk.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/livivuvuwugeb/orlando_naval_recruit_training_center.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1be0a14-d9a2-40b8-8e22-5c0cade79646/introduction_to_classical_mechanics_with_problems_and_solutions_solution_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/3751004287.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/jatuferalelodilalu.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/ruboxoduralamadubex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d45d420-4a4d-4e7a-883d-48e400986789/90765341690.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_off0000df56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF56 5412 bytes
SHA-256: 81400140cbe8268dd23371fdf88589a55188c6cc5c9deb354842b59374f16b02
font_01_sfnt_off0000f1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C2 10460 bytes
SHA-256: c18a3ee814d1b611ca7dce7fb6e9b8e1669dd09606cec30ce73ffdbbbf99bf93

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