Malicious PDF — malware analysis report

Static analysis result for SHA-256 c57df14b461b687c…

MALICIOUS

PDF

67.5 KB Created: 2021-02-25 08:05:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: de2060fd30680517780d9ea704f2034b SHA-1: 72d63630b3d715bb777ece745c7372cee8c882c2 SHA-256: c57df14b461b687cfff91327402f800d2a23389856d0566d7f38a6acba598785
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://druttle.ru/award?keyword=proform+585+treadmill+belt+lubricant PDF link annotation
    • http://gejesixave.scienceontheweb.net/beroreg.pdfIn PDF document text
    • http://wersita.space/66609460536nbarr.pdfIn PDF document text
    • https://nifusesoporiw.weebly.com/uploads/1/3/5/3/135309858/2700558.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472188/normal_5fef11562e83d.pdfIn PDF document text
    • http://reactivaperu-viabcpi.com/how_do_i_use_my_innova_3020dldfun.pdfIn PDF document text
    • https://sotugenedoximo.weebly.com/uploads/1/3/4/0/134040923/89e3dd66.pdfIn PDF document text
    • https://mekumago.weebly.com/uploads/1/3/5/9/135981587/5729586.pdfIn PDF document text
    • https://motodamoz.weebly.com/uploads/1/3/1/4/131452818/nuluf-gozalidulerat.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/gavexafigemixiwu.pdfIn PDF document text
    • http://bewewafip.scienceontheweb.net/neato_botvac_d401_connected_-_saugroboter.pdfIn PDF document text
    • http://nesobaka9.xyz/carrom_pool_apk_unlimited_coins_and_gemsxdqor.pdfIn PDF document text
    • http://erkutungotu.com/74491246720yvwad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450625/normal_6020182f8231a.pdfIn PDF document text
    • http://zakukat.iblogger.org/89005715844.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/figozorolide.pdfIn PDF document text
    • https://dapunilak.weebly.com/uploads/1/3/4/5/134506399/de7f7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuzaxovojige.epizy.com/ffxiv_leveling_guide_30-_40.pdfIn PDF document text
    • http://bivojeda.atwebpages.com/93058024479.pdfIn PDF document text
    • http://fuvuvadut.onlinewebshop.net/fisher_price_cradle_swing_aquarium.pdfIn PDF document text
    • http://lisokabosexipep.epizy.com/vakerof.pdfIn PDF document text
    • http://favilimaj.rf.gd/45558433091.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_off0000c94f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC94F 5448 bytes
SHA-256: 04f4a95278a60e09401be3bef519bd861940aea3b1508c1a06b49ae0d4d6acaa
font_01_sfnt_off0000dbc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC9 10416 bytes
SHA-256: 6e70297ed0066b72567b569b1010e383a9dc773ed12d43c94e729653c64b4c4c