Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30fc35c1423017a…

MALICIOUS

PDF

46.1 KB Created: 2020-10-19 23:41:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 1e378947c83f59263b491739b9aaa31f SHA-1: 5f2d694b3d87daf5c297276f590c6acc75c4daf7 SHA-256: f30fc35c1423017a0896eaa0c0c4e73b8ae807db26a4924d0bc7bb1beaec2b57
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=bell+satellite+tv+guide+not+working In PDF document text
    • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/d6604ea53f.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/sokilijaw.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/renubovigefisamopedo.pdfIn PDF document text
    • https://mizunawakore.weebly.com/uploads/1/3/1/4/131406356/fevudamepiv.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/9509331.pdfIn PDF document text
    • https://nanorobudilason.weebly.com/uploads/1/3/0/7/130775181/5d711e036c4377f.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/9051060.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370268/normal_5f8a24a311301.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366969/normal_5f877eaa3a70e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366969/normal_5f8c1a19bd0ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365560/normal_5f8723121386e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383925/normal_5f8dc8c90230e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f8dc79853dba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4890/6145/files/14064340158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1767/files/those_who_save_us_book_club_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4155/3046/files/gta_vice_city_pc_game_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6208/3232/files/bcma_fee_guidelines_a00095.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03985124-8200-46df-a961-7444d68ec386/7625551292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/349704c1-84d0-401b-8b22-ec811d5a5ff8/41037892269.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87b31425-f908-4cec-82d9-8d3716008e85/79536241608.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5534a117-d8a9-42fe-80db-b638c6189503/dorogetejozigebimeje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2cfd8b5-1a6e-43ca-884c-31028362b60b/lizitovolapowomatakixupis.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_off00007293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7293 5256 bytes
SHA-256: 2813f98f90c1cb4ec985d6b7da45a1ccd36b229e61e97cfbd0f2a2baab5f7280
font_01_sfnt_off0000849a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849A 10592 bytes
SHA-256: a26f62c3078d6bc96de12fa26790b8f1cc5e6662a3457cd7099d0f83765f8fff