Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc14b266889067e…

MALICIOUS

PDF

177.6 KB Created: 2021-04-08 12:48:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: b5665fe1ff541e903261f38598a515d2 SHA-1: 72d46b0e726eba5230c4e601ce84927b6927c3f3 SHA-256: dcc14b266889067e3173289e71a5fd31cfc5c6dd7d1e851e902ea51b8e867363
126 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that appears to be a phishing lure, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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+does+the+rising+sun+mean+in+japan PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4376120/normal_5ffbe4921ecab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_605d89abd7d08.pdfIn PDF document text
    • https://cdn.sqhk.co/jenojigise/JjehgjH/xijixadetur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372354/normal_603293012362e.pdfIn PDF document text
    • http://levipek.22web.org/35901709760.pdfIn PDF document text
    • https://cdn.sqhk.co/vapiwibisa/ifiRifH/video_from_web_page_chrome_extension.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bbb2ec2-bb6d-4df3-b5c8-ef05b91b7bb9/problemas_politicos_de_mexico_independiente.pdfIn PDF document text
    • https://fd0ef26f-7b8f-4c91-b3b2-19f7ec93487a.filesusr.com/ugd/4174bf_f2b85b12e2bd42d087f96d742013023b.pdf?index=trueIn PDF document text
    • http://kubijizexex.rf.gd/baby_boss_movie_filmyzilla.pdfIn PDF document text
    • https://e4586023-485a-43f1-9451-2d404684c5b7.filesusr.com/ugd/95ff22_6b74feb8fffb44e59cec0e22c236c7d1.pdf?index=trueIn PDF document text
    • https://75e6061f-eb7a-4ce8-b546-077bf96366c3.filesusr.com/ugd/2dfd19_69a4dda8aa3b47cd9c242a1764bf608f.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/836f2fdc-69ec-4af0-b98b-b70fa9afa5f3/futepunegeni.pdfIn PDF document text
    • http://fexojuvaf.rf.gd/nuzolatalirorujox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c20b7d0-8491-4404-a578-a14a8cbe2b29/15539454669.pdfIn PDF document text
    • https://9e1e9198-0fe7-4103-8084-fdcc6befb8d5.filesusr.com/ugd/2f7815_32ef0d33d82f4820a86441b0071b7cb3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae4c768f-0e56-430f-8791-6ad054caae57/anker_bluetooth_folio_keyboard_case_for_ipad_air_2_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d7fc9da-5950-4d22-9c5f-9c18f41080d9/how_much_is_a_good_used_rv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a890b4a-3a60-4387-b932-7c599dbecf26/tp_link_wr841n_manual.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_off00014e41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E41 101976 bytes
SHA-256: 60c43fa28b3e69d2047e070401a51e8152e627be05b25a41fffcc5226e4b1146
font_01_sfnt_off000280f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x280F2 5428 bytes
SHA-256: 7cc5ace09932ce0f53c95bdd79edbe20173be7ead2bbd8443e9c88cb84f25cbb
font_02_sfnt_off00029353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29353 11180 bytes
SHA-256: 48d3e6b1fc3469456582cccb7dad723415ddcabb004bed923acc8d8092bffd41

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