Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb6ec36ee8d6e11…

MALICIOUS

PDF

43.1 KB Created: 2020-11-07 13:30:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: ffd5456ea1fc2b19c37394d4a37306aa SHA-1: 3af2436fbf1c00e8e7c0be640db7a2a3c9e4be8e SHA-256: afb6ec36ee8d6e115bbf5381d2a93466d5d06af6780f41ac49d9dc37e1add2ae
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffmen.ru/aws?keyword=kenmore+stoves+manuals In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378641/normal_5f9c0290ca976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379476/normal_5f8a676e4b952.pdfIn PDF document text
    • https://lavazelowima.weebly.com/uploads/1/3/4/3/134316744/6dcfe.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/balevedamurerozis.pdfIn PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/8f8a6f33.pdfIn PDF document text
    • https://letateworu.weebly.com/uploads/1/3/4/3/134365764/3310eac7930f.pdfIn PDF document text
    • https://kixatefibav.weebly.com/uploads/1/3/0/7/130776592/doxolevon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://nodexedi.files.wordpress.com/2020/11/negijibepodap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae7f966b-563e-477b-b1ec-a05e8dfc2c24/83902816365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/989d0639-2c68-4340-ad12-4ab7c0733727/saziweved.pdfIn PDF document text
    • https://wuzapadi.files.wordpress.com/2020/11/53177021903.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/393048a4-f8ac-4135-a252-716e85402def/wutaforunanokafo.pdfIn PDF document text
    • https://faxikivekel.files.wordpress.com/2020/11/80563414329.pdfIn PDF document text
    • https://nasudapopu.files.wordpress.com/2020/11/29401969277.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_off00006c0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0B 4860 bytes
SHA-256: 709769f747b7f2c83417eae1a0a233071e3e5dfbdce4c655812f21bf949b2cec
font_01_sfnt_off00007c7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7F 10424 bytes
SHA-256: b64c0b38a36bf975d8645b2fe6a7afc6db74114902468e026f29f49bd0391c7d