Malicious PDF — malware analysis report

Static analysis result for SHA-256 3513febe9a5903f4…

MALICIOUS

PDF

47.3 KB Created: 2020-10-16 00:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d01ba84bb9af1e86f33ddbe52f055fd4 SHA-1: bba8715ae4f5684ed5abe48483b4d2abbae9e2fd SHA-256: 3513febe9a5903f4b7713098ea18e7081df845ac9a15702329bbfde1cd3f809d
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://gettraff.ru/123?keyword=navy+fraternization+policy+pdf In PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/1380891.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/marema-zevaz.pdfIn PDF document text
    • https://gikoberi.weebly.com/uploads/1/3/0/9/130969260/fupegupexerubunof.pdfIn PDF document text
    • https://zeginuvo.weebly.com/uploads/1/3/0/7/130775519/1903210.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f874258ce743.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367300/normal_5f882b98af2a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f86f998660e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369316/normal_5f87ec171c91e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369304/normal_5f87d4194e537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373517/normal_5f88b8b051e07.pdfIn PDF document text
    • https://site-1036936.mozfiles.com/files/1036936/tagegagejefomevu.pdfIn PDF document text
    • https://site-1042875.mozfiles.com/files/1042875/66539889916.pdfIn PDF document text
    • https://site-1043034.mozfiles.com/files/1043034/wulofuxonol.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/0db7bf55-c389-4ee5-b6df-e83c250679ca/kurozuxulufanavifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66211b38-c1c3-4b8e-8a13-0d609fde87b6/surubiseratinefisajaxopu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3d107da-9582-4c95-9963-727e31cc03c5/32365131743.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/288c8951-1c70-42a0-b6f5-0057178e0559/1092140536.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb0869be-2af7-4870-8ac1-e391149b7088/78355510877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/4692/9052/files/guided_reading_cold_war_superpowers_face_off_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7543/5677/files/mass_effect_liara_age.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3485/9930/files/67441145558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3042/4985/files/occupational_health_assessment_guidelines.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D68 4940 bytes
SHA-256: 78a355c32fadf4ba2f9fe66e338a6c5cdc2898fcb93f1c233b3209751b50b065
font_01_sfnt_off00007e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E52 10224 bytes
SHA-256: d5b6b4ec494271f2987d50c139dd7aec49c4e3e99cc09af8fa84b3b4fe48714f
font_02_sfnt_off0000a15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA15A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c