Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1018a27dc4e4e58…

MALICIOUS

PDF

44.6 KB Created: 2020-10-15 04:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ba3be9e63e3eb57b4f8380ab2a28fe11 SHA-1: 3fad335dc88b4ccdbffd17122b0f897641bb7d0c SHA-256: c1018a27dc4e4e58b7aa6bfece2c6017c7cd247b67e479ce2c013d5f1c60707e
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://gettraff.ru/123?keyword=ms+security+essentials+manual+update In PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/7433093.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/wubimevipuwepi-podop.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/7644559.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/0cbd7f35736ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8744621bbc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367631/normal_5f877286396b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f871c627cd3b.pdfIn PDF document text
    • https://site-1039328.mozfiles.com/files/1039328/watusegewa.pdfIn PDF document text
    • https://site-1038998.mozfiles.com/files/1038998/wamuvinuvebo.pdfIn PDF document text
    • https://site-1043406.mozfiles.com/files/1043406/82592091394.pdfIn PDF document text
    • https://site-1040002.mozfiles.com/files/1040002/vutiwovopazog.pdfIn PDF document text
    • https://site-1036833.mozfiles.com/files/1036833/88776499445.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/11aa5209-cbf0-4f1a-bdf2-7bf60628046c/ruzebazalemusotumefa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1819b1f-679a-4750-8f51-705b0f85b1d7/42455570791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dbb2bd0-8a3a-49e0-acbc-758cb60c8d68/76978516141.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56f8b832-864d-4236-9a9a-2831d045fb4e/26020809473.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eedae6d3-71fa-49ab-ae0a-38b69a497576/94988828519.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50e34321-b1fc-4bfe-9427-fa96e6338bfe/jejagurabofomalom.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B0 5096 bytes
SHA-256: 78fc58c1f6cbafdec23df46b7550cf01a2a39110bd7f61699b0f865c1c07d79a
font_01_sfnt_off000073ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73EF 10192 bytes
SHA-256: 1e98330bf246313751d9cdc3095d10801e0fc78ff99dc0871954c8098531c85c
font_02_sfnt_off000096c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96C1 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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