Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a8122808db3cc2…

MALICIOUS

PDF

77.7 KB Created: 2021-02-22 00:09:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2db4a6bf82d83783a6fd35d72957f1fa SHA-1: aa516d7acffb652451e3a2b393193137bf9e2b87 SHA-256: 60a8122808db3cc2e628aa53df27f5160d93c798213c047a3e9408f3a991ae2e
284 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDFs hosted on disposable domains, a common tactic for link farms and phishing lures. The presence of a malicious redirector URL and ClamAV detection further supports its malicious nature. While no scripts were directly extracted, the structure and embedded links suggest an attempt to lead the user to malicious content, potentially a phishing site or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.
  • 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/strik?utm_term=picostation+m2+reset+to+factory In PDF document text
    • http://vivuvulefova.iblogger.org/free_word_templates_for_cvs.pdfIn PDF document text
    • https://cdn.sqhk.co/pojukitogex/jir0pOA/rally_racer_dirt_apk_indir.pdfIn PDF document text
    • https://dolevepi.weebly.com/uploads/1/3/4/5/134587457/jelukodabene.pdfIn PDF document text
    • http://unityfree.xyz/tenodekojozisas8.pdfIn PDF document text
    • http://fridgeservice.ru/baldurs_gate_dual_classxoirc.pdfIn PDF document text
    • https://cdn.sqhk.co/basinasedu/mfTpNig/meme_soundboard_unblocked_scratch.pdfIn PDF document text
    • https://cdn.sqhk.co/tasiteregixo/jijaahc/21102752308.pdfIn PDF document text
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/vivufilesabiteko.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/6gcNsif/radiology_ltd_patient_portal.pdfIn PDF document text
    • https://nosodelutota.weebly.com/uploads/1/3/1/8/131857544/dexup.pdfIn PDF document text
    • https://cdn.sqhk.co/kigowabalo/id1jjjb/xitaravatilevoje.pdfIn PDF document text
    • http://moshon.space/kolotebovazodelalosamunuk4s8ru.pdfIn PDF document text
    • https://cdn.sqhk.co/pujimuxuja/igjbwlJ/72512193219.pdfIn PDF document text
    • https://cdn.sqhk.co/manowipete/lsq6Oie/racing_moto_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://posinumufupe.epizy.com/love_after_marriage_novel.pdfIn PDF document text
    • http://lamupilabixekuw.epizy.com/consumer_reports_best_mattress_for_heavy_person.pdfIn PDF document text
    • http://fimuwixuxur.rf.gd/32560493871.pdfIn PDF document text
    • http://suginuzebaluwom.rf.gd/85524448276.pdfIn PDF document text
    • http://posijibanif.epizy.com/remetu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE726 5020 bytes
SHA-256: 02a2181c0b2856ce9cfcd3b336c0b127fe0527f5ad0ff1143aacdae4553250a6
font_01_sfnt_off0000f812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF812 10260 bytes
SHA-256: 0f45d3af1dce722b7b699b1a8aabb9bf14e3e2cc1baa9470faccacf7a322415b
font_02_sfnt_off00011b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B3A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176