Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d35e4d21178d7e9…

MALICIOUS

PDF

48.4 KB Created: 2020-10-27 13:39:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: f23cc93bdf6889b5a14fde778a8fc493 SHA-1: 82e6d90ce084f865cc6c1a24cc74bb725b2ba98c SHA-256: 2d35e4d21178d7e9dc0e08df10734acbf5d223a69fa590722bd30be87d3056e0
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.link/pify?keyword=22+lr+ballistics In PDF document text
    • https://ranefegol.weebly.com/uploads/1/3/4/4/134498511/3207819.pdfIn PDF document text
    • https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/358625.pdfIn PDF document text
    • https://firerokuk.weebly.com/uploads/1/3/1/1/131164187/7961136.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/livefoze.pdfIn PDF document text
    • https://nukawopuriw.weebly.com/uploads/1/3/4/3/134347541/soxomawojobowunek.pdfIn PDF document text
    • https://dijumigomeruke.weebly.com/uploads/1/3/4/3/134309809/zokedetazazedis.pdfIn PDF document text
    • https://fisotewefupug.weebly.com/uploads/1/3/1/0/131071176/3680112.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/lifevit_bijaron_tezirigatefimex_nosasitefefixi.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/rexukaxusebo.pdfIn PDF document text
    • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/6487459.pdfIn PDF document text
    • https://jorimedazaget.weebly.com/uploads/1/3/0/7/130738946/rajudanib.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000724e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000724e.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000a6bf.bin)
    • https://s3.amazonaws.com/fadedosi/83893211076.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/chemistry_in_action.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/total_aerobic_plate_count.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/kenovatigeda.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/malinconia_ninfa_gentile_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/fibipigikadekutokuwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c116ecf2-4405-4a4e-81d0-2b5a1e52e95c/gran_turismo_sport_decal_uploader.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a571c81-b0a4-43af-bdcd-089d65d00feb/debokivajuferunigadigogod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40710400-6225-4faa-918f-9cf00f099600/61013458417.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 extracted file (font_00_sfnt_off0000724e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000724e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x724E 4424 bytes
SHA-256: 0fce024266e0487a1960950f71187819e3ee8c542d1a7d6affc974f7175e20cc
font_01_sfnt_off00008140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8140 10960 bytes
SHA-256: 1b8597eb21257d272ac8b3dae87072771c03236afaa6dadf6ee4b30e6a35daa7
font_02_sfnt_off0000a6bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6BF 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e