Malicious PDF — malware analysis report

Static analysis result for SHA-256 562da93f3e634bb0…

MALICIOUS

PDF

70.6 KB Created: 2020-10-17 05:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 7a786c88377023d7784ecd5d5c672059 SHA-1: ffb3d2851b60066ff7164615e5a45431b6a9d02a SHA-256: 562da93f3e634bb0ed695aa112e0611017b74b33482da5e057693d6f2db4a7bc
184 Risk Score

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.me/123?keyword=siemens+sitrans+lut400+manual+espa%25C3%25B1ol In PDF document text
    • https://daputonekamipit.weebly.com/uploads/1/3/0/7/130775603/1c9381b.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/c25f730.pdfIn PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/velipe-nozogilifemu-rafatojisiju-levosakakav.pdfIn PDF document text
    • https://valuluxunu.weebly.com/uploads/1/3/2/7/132710491/gemuzawitil_tarilegabi.pdfIn PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/550093bfaedc2f.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/woxabusukujawe-vanodozofajesa-wanezine.pdfIn PDF document text
    • https://sakuvida.weebly.com/uploads/1/3/0/7/130775714/bazesatoba-kanoj-ronagagekixik.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/916761cf89a.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/belapigojat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376125/normal_5f89f4dfaddb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_5f876148dacdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366661/normal_5f871fdde22fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375075/normal_5f8a310eaf1ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367921/normal_5f89d020c74ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365594/normal_5f890a85302cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f8718425a0c0.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/196b236b-e245-4d38-9f42-1fa69f619ae9/89120315091.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0f6df11-4151-4413-88b9-7afe15696d8a/dixovabefenolipivikorizav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e1f3bd6-6175-4831-9ddd-a6513633b06a/53494959952.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4533c7ca-ba12-47c6-a753-313c9f2b3adb/papikumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8099/8302/files/south_charlotte_middle_school_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/0622/1214/files/78873357104.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_off0000d569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD569 5508 bytes
SHA-256: 3e2a7dd39381dcafaddc0692a9cefec9be1ef0d44d3a4a8b0f40535001193816
font_01_sfnt_off0000e7c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C0 10208 bytes
SHA-256: 9ba09fb78f994806bc761e055f29ad98f49217db454e4d402db8374a615aae04

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