Malicious PDF — malware analysis report

Static analysis result for SHA-256 17d6701ba9d2713a…

MALICIOUS

PDF

72.6 KB Created: 2021-02-20 15:31:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d2b6ec307483b67463277d585ecb0cd3 SHA-1: 36f94f526ae37c6c6911914656ab44fb95a8940f SHA-256: 17d6701ba9d2713ad292e4806eb26d2320e1103928da7a3e5c8834297e56dcc2
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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/wix?keyword=craig+soundbar+cht923+manual In PDF document text
    • https://lidaleteso.weebly.com/uploads/1/3/4/0/134017218/rosudazap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403816/normal_5fe34ab51e19b.pdfIn PDF document text
    • https://cdn.sqhk.co/rizavoxaje/jaQjdvJ/59293548753.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482847/normal_5feb446ded9f9.pdfIn PDF document text
    • https://dofetavazazu.weebly.com/uploads/1/3/1/0/131071127/5503596.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/ij0gjJk/29581192470.pdfIn PDF document text
    • https://cdn.sqhk.co/zufuxirap/ieidggf/datowesidojinekukegizigo.pdfIn PDF document text
    • https://cdn.sqhk.co/fewibefanid/O4gisBv/james_clavell_shogun_book_series.pdfIn PDF document text
    • https://pituluwo.weebly.com/uploads/1/3/1/4/131437949/sitokud-xiwetefup.pdfIn PDF document text
    • https://piberarejini.weebly.com/uploads/1/3/5/3/135332679/7103891.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/W5FdvBM/fifa_world_cup_qatar_2022_groups.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368952/normal_5fe18e7c6375d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477173/normal_5ff338ac14137.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411479/normal_5feaf1f96fe65.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412763/normal_5fcdf938122a4.pdfIn PDF document text
    • https://sibotapitagota.weebly.com/uploads/1/3/4/3/134378411/jilegufotak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_60131937ef1b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453329/normal_60028fc64f457.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_off0000d238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD238 3080 bytes
SHA-256: 3b6c3edccbbdf68622c80e44ac099bd4bffa00507f4f1bc839f0bdbf087aa810
font_01_sfnt_off0000dd42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD42 5852 bytes
SHA-256: db48ed0ec0e1dbc0e9ed8f7061d4d1c6bbf87a3cec5ac571b3a271bbda315c4e
font_02_sfnt_off0000f0f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0F1 10708 bytes
SHA-256: aa77c26bae7be47765a7b86481b9e7095093e4559ba78ff3d3e52f29117667fc

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