Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ce36174c69c8f9…

MALICIOUS

PDF

89.4 KB Created: 2021-03-05 00:25:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 7c5a11ffe253f6b9abcff7f85b29cbc9 SHA-1: 3d8a5bdba010b606c6764b566a910591416b36e7 SHA-256: 52ce36174c69c8f95f5d0f367628d9d45d10fe7a735563d2dfff59990ba8d618
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 phishing or trojan threat. It contains a link farm with numerous external URLs, including one that appears to be a search query for 'what is the best cellular game camera on the market'. The presence of a link farm and disposable hosting suggests an attempt to manipulate search engine results or direct users to potentially malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/strik?utm_term=what+is+the+best+cellular+game+camera+on+the+market PDF link annotation
    • http://itdiscounts.pro/55883812986pe3vg.pdfIn PDF document text
    • http://domodip.iblogger.org/nh_lut_bo_ton_ng_lng_lp_10_cng_thc.pdfIn PDF document text
    • http://copyright-help-report.com/how_do_i_drain_my_lg_front_load_washer01n7p.pdfIn PDF document text
    • http://pedrons.space/tornado_foosball_table_for_sale_near_mes9jg3.pdfIn PDF document text
    • http://hrushch.space/47283259764zjrkd.pdfIn PDF document text
    • http://gapagal.mywebcommunity.org/dell_e6410_i7_specs.pdfIn PDF document text
    • http://sipoxamux.22web.org/spektrum_dxe_wireless_binding.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/xisurisoluwa.pdfIn PDF document text
    • http://wildber.store/how_to_check_a_lawn_mower_battery_with_a_multimetereuzux.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
    • https://2863666b-9d79-467d-9aad-9eeb6dafbdf2.filesusr.com/ugd/6ee3eb_35457952569a415caaed12ce981d9b3f.pdf?index=trueIn PDF document text
    • https://4123e755-5e7e-4fb8-b167-49ba90d37259.filesusr.com/ugd/fd3290_71995ac336814e9588feca2225dd1b30.pdf?index=trueIn PDF document text
    • http://tebuwawezizafes.onlinewebshop.net/sub_divisional_meaning_in_hindi.pdfIn PDF document text
    • https://67a4337f-2b79-4d04-9c1d-2578c80f4945.filesusr.com/ugd/964009_8b1ba703a2f244ce9c6c761d457a5cbb.pdf?index=trueIn PDF document text
    • https://7f993087-45f6-41f4-96e5-9dcaca18fb91.filesusr.com/ugd/9a92dd_dea40b202f5d4e1e9f7d9ae4fb8aaa4e.pdf?index=trueIn PDF document text
    • http://vekemelegewimo.atwebpages.com/what_is_an_information_sheet.pdfIn PDF document text
    • https://650c977b-0274-48a2-8498-43c0efc39f4e.filesusr.com/ugd/dbad32_f330b91840734d45a0705f5623f54795.pdf?index=trueIn PDF document text
    • http://nisetekotixob.myartsonline.com/soxatole.pdfIn PDF document text
    • http://litezopufesox.epizy.com/full_form_of_iqc.pdfIn PDF document text
    • https://cb2d4818-2134-4ea5-ae57-1bc45cfc4292.filesusr.com/ugd/7e787c_d33e7935e23a4500b237e475936b6711.pdf?index=trueIn PDF document text
    • http://gunubaxerilol.epizy.com/flexera_flexnet_publisher_11._16._2.pdfIn PDF document text
    • http://vemusimovoxodan.rf.gd/46622156146.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_off0001101c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1101C 5312 bytes
SHA-256: 8b0ecf55c995cbf2fd6878ef9f9ba10b8d7745c492f47bf98f4b720725256784
font_01_sfnt_off0001220a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1220A 12592 bytes
SHA-256: 75f952c0d1a73112e049fe49723946e8e6d31fe93a76e39265ccc0106314bcde
font_02_sfnt_off000149b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149B6 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2