Malicious PDF — malware analysis report

Static analysis result for SHA-256 0608ff4a727c3abf…

MALICIOUS

PDF

74.5 KB Created: 2021-06-01 11:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 49dc91099d138f41ccacc87b9c481c44 SHA-1: 3190ebd287a05fd0cd3f57731a384ba7bb04d034 SHA-256: 0608ff4a727c3abf7a1a40e3e0a848206868bdb86c5bbbba2e45d4f8f35e72ed
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting services, indicating a link farm designed to obscure malicious intent. One prominent URL, 'https://allytemp.ru/pbw?utm_term=3+idiots+full+movie+download+1080p+bluray', suggests a lure related to movie downloads. The ML classifier and ClamAV detection strongly indicate malicious content, likely phishing or malware distribution.

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://allytemp.ru/pbw?utm_term=3+idiots+full+movie+download+1080p+bluray PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415527/normal_603618aaf30b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497688/normal_5fe42468b1335.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461751/normal_605980a956cc8.pdfIn PDF document text
    • https://fikejibin.weebly.com/uploads/1/3/4/3/134331262/tezunag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404503/normal_604424de2bf6b.pdfIn PDF document text
    • https://duweliga.weebly.com/uploads/1/3/4/5/134593675/peret-ligepu-zenog-pupojo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417526/normal_60216ca94a15f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391317/normal_603a8fad3ce15.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4405925/normal_60afe78e16a33.pdfIn PDF document text
    • https://ketesepirexutub.weebly.com/uploads/1/3/5/3/135306065/08d05.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuresasadox.pbworks.com/w/file/fetch/144445254/57392266230.pdfIn PDF document text
    • http://niluputevi.pbworks.com/f/ludusir.pdfIn PDF document text
    • http://wuwazilizos.pbworks.com/f/pogelipajat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6fa2857-0f49-46b3-b7b7-b13910cbfdc9/kill_team_cassius_9th_edition.pdfIn PDF document text
    • http://risoxef.pbworks.com/f/nixujuvur.pdfIn PDF document text
    • http://kokoxudalux.pbworks.com/w/file/fetch/144426912/lafosupoborijov.pdfIn PDF document text
    • http://zeladejan.pbworks.com/f/31063552953.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f73ca6ec-3c75-42db-81c2-67d1c127563b/bajirao_mastani_full_movie_free_download.pdfIn PDF document text
    • http://kokoxudalux.pbworks.com/f/rajifanovexanisemafezeku.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_off0000e3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A8 6036 bytes
SHA-256: 0d346de84093ac2253a181d658d5a84f27880880e2082d5f28745d72b72a8354
font_01_sfnt_off0000f82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82B 10648 bytes
SHA-256: c5d1cb74018aa4e04fc58f2b298b71de60e8565d1181f3c4f328ae06df457583

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