Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c96478cf86b5cf3…

MALICIOUS

PDF

41.0 KB Created: 2020-10-04 16:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 058d5da01f197d72b2088d95f2d5bea5 SHA-1: fd9fabbd7dd88877d015cd900928dbce71832e68 SHA-256: 0c96478cf86b5cf32795146dd66ce3e18579649d7bb64bc270be70f6aa42eec2
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs, many of which point to disposable hosting and redirector infrastructure. The primary URL identified, 'https://ttraff.club/pify?keyword=amityville+long+island+train+station', is flagged as a known malicious redirector. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://ttraff.club/pify?keyword=amityville+long+island+train+station In PDF document text
    • http://files.thecriticalcouple.com/uploads/1/3/1/4/131437930/kojanokuvajolerigof.pdfIn PDF document text
    • http://files.lachicalocajc.com/uploads/1/3/2/6/132695445/kamoriwojusu_zetarop.pdfIn PDF document text
    • http://files.kimtarrestaurant.com/uploads/1/3/2/6/132695575/a7c89a29b91.pdfIn PDF document text
    • http://befetavo.canadian-media.com/uploads/1/3/1/3/131380828/budisugasuk_xajenubu_nujiwe.pdfIn PDF document text
    • http://files.3324user72cba-ckd.com/uploads/1/3/1/6/131606047/siwilikufisuvodo.pdfIn PDF document text
    • http://tumitif.gonzalocarvajal.info/uploads/1/3/0/8/130874683/4587228.pdfIn PDF document text
    • http://mibudeda.texasumbra.org/uploads/1/3/1/4/131406149/kogeg.pdfIn PDF document text
    • http://files.ckemployeeportal.com/uploads/1/3/1/3/131383943/4276487.pdfIn PDF document text
    • http://velobusat.kcorneliusimagesandmarketing.com/uploads/1/3/1/3/131397997/kigub_bubopag.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/258dd539-194e-4c70-890b-e89d29bcd7c9/38865153346.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f0509ae-3223-4042-ae61-afb14ece7bf0/94823267502.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66edb8dc-ea5f-4ec4-888f-c1bf470a69a5/12836132506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2644/6498/files/ladevomepevazetuvig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8440/7199/files/depression_out_of_the_shadows_quizlet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7342/9661/files/jemipuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3978/0775/files/xebibabulexopapili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7575/1067/files/xelojapuza.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_off0000615e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615E 5296 bytes
SHA-256: ae7dd3d945d42c5930e1ff9f40a4ba7fa797337e0a14227e3ac948a4f9afe84a
font_01_sfnt_off0000735b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x735B 10308 bytes
SHA-256: 1214161a9e6999cfb88788f6735fb389afe6c71c4f2b4e5855a486fec249df06

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