Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2503fdc050633a…

MALICIOUS

PDF

42.0 KB Created: 2020-11-07 08:05:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 3110a0dbf0f5c759149c23c460026f9d SHA-1: efdc0a885a539956db34613174d2a341928324de SHA-256: 1e2503fdc050633a35db979ac5759ef77e148104f33b816c8fc2b65d639ccdf6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/wb?keyword=mercury%20outboards%20manuals%20free PDF link annotation
    • https://porelananov.weebly.com/uploads/1/3/0/7/130775759/sisebutenoxi.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/096fc46624a1.pdfIn PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/xijifoxavok.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/gupejenu-dodorawokeno-velakuviwoxem-fobajozodeniwef.pdfIn PDF document text
    • https://ruregeriwak.weebly.com/uploads/1/3/4/6/134666462/wuzabugikigelixu.pdfIn PDF document text
    • https://pazolumaf.weebly.com/uploads/1/3/4/3/134356568/sofeju_wunanodad_funipijugul.pdfIn PDF document text
    • https://velabusodogir.weebly.com/uploads/1/3/1/8/131858366/wixoneseba.pdfIn PDF document text
    • https://zuparimetusu.weebly.com/uploads/1/3/1/3/131378993/podelixusuf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vinojuxilopi.files.wordpress.com/2020/11/wafiza.pdfIn PDF document text
    • https://junevip.files.wordpress.com/2020/11/tigujevusubuji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27b65a3d-1ce1-4dcd-a15f-ddf6c3fbd1dc/23517606376.pdfIn PDF document text
    • https://nawazuled.files.wordpress.com/2020/11/90845161917.pdfIn PDF document text
    • https://kunasowajuri.files.wordpress.com/2020/11/regalo_extra_wide_safety_gate_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a04d6f0b-097b-4c28-a6f6-82e131fd74da/xisibituten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e70bb464-d51c-47ac-9630-ed97229061bd/2282767474.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8da406e9-dfd4-4737-b53d-fbe7404adeb2/gefiw.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_off000063b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B2 5416 bytes
SHA-256: 5e0094ab24f29c9153fac3b3612f260dffce55e747a3cdab30c1d2e51387b70b
font_01_sfnt_off00007618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7618 10840 bytes
SHA-256: 0a0102e85bcf832b9e0fd912a978e9b5df429ef49bf6b30a3c4a994951b87c5a

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