Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c0778afd396abbb…

MALICIOUS

PDF

101.0 KB Created: 2021-01-17 17:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: fc9663c2f600e81e66ad17f0fdf85f67 SHA-1: 99d1acc424fe533022fe9f8aa710a1053bc5dc34 SHA-256: 0c0778afd396abbbe4929cf5b21771133729667bc0f3aab5462dfabdccf4c25a
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to disposable hosting and redirector infrastructure, indicating a phishing or malware distribution attempt. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a link to known malicious infrastructure. While no scripts were extracted, the overall structure and link distribution strongly suggest a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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://traffine.ru/123?utm_term=ff+crisis+core+review In PDF document text
    • https://cdn.sqhk.co/remowiwa/jhjfgf7/romancing_saga_2_class_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421049/normal_5ffc0ca732c87.pdfIn PDF document text
    • https://site-1177512.mozfiles.com/files/1177512/asseverazione_di_conformit_credito_iva.pdfIn PDF document text
    • https://xonedapu.weebly.com/uploads/1/3/4/6/134654428/5342862.pdfIn PDF document text
    • https://cdn.sqhk.co/posogamumut/gdO0aaU/special_forces_group_2_apk_mod_skin.pdfIn PDF document text
    • https://kasivolonu.weebly.com/uploads/1/3/4/6/134688646/44de70799db99e.pdfIn PDF document text
    • https://tebebutak.weebly.com/uploads/1/3/4/7/134744698/jamaxujidewakoj_radogojuxetudaw.pdfIn PDF document text
    • https://bojuwidus.weebly.com/uploads/1/3/4/6/134698781/narijidebevow-kipata-nokamalesiduf-nukasupunuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456132/normal_5fc125be396d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500893/normal_5fffd6dd7754f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451744/normal_5fd33e34968c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393521/normal_5f9530719c74c.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/7787266.pdfIn PDF document text
    • https://site-1168218.mozfiles.com/files/1168218/london_farm_show_2020_dates.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/gjaMjbA/12533801590.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/icmqhcQ/aladdin_king_of_thieves_full_movie_dailymotion.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0001349a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1349A 7884 bytes
SHA-256: 63ff82d427da0a5b024dfe0a36c0dfb64a794da9a8d4009f0a6344dbcefa7728
font_01_sfnt_off00014f7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F7C 4740 bytes
SHA-256: a16fd59f6ee6df4a425030e7d9255938f550ea7f49359e7ccc59179c98ef8770
font_02_sfnt_off00015fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15FCA 11492 bytes
SHA-256: fd1a6448d9b16bd1f22cf4b2451b35b12a1daea142bc18614d65e6a0fbbbb702

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