Malicious PDF — malware analysis report

Static analysis result for SHA-256 034085c48a8c7629…

MALICIOUS

PDF

43.6 KB Created: 2020-11-07 03:13:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 6fd384dac85dd3f375f4c37609a132ee SHA-1: d3a6e7d68e410abc07d7c7ea15134a1975700029 SHA-256: 034085c48a8c76292f9944da807b106fce43a196b2c5142b2fe69d8b601fb05a
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://trafficel.ru/aws?keyword=tinapang+bangus+recipe PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366000/normal_5f8be8f1ebd2f.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/19bde8975.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/sanufiruwula-nuxagadedanureg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408711/normal_5fa29fe0a850d.pdfIn PDF document text
    • https://govepemifowen.weebly.com/uploads/1/3/4/3/134372812/8087010.pdfIn PDF document text
    • https://fipokotosa.weebly.com/uploads/1/3/4/5/134506619/sefasagid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418788/normal_5f98b28cec40a.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://kajejomo.files.wordpress.com/2020/11/62864854101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/157c294f-ae91-4bf4-bf98-44bf129de0eb/12797033322.pdfIn PDF document text
    • https://zodanolafaxe.files.wordpress.com/2020/11/kagan_strategies_for_math.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c25b267-21aa-49ac-bd91-207d16db654f/sipebeloferulopetupapa.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_off00005f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5E 4852 bytes
SHA-256: 1b195d03d5d44d9e38f1db62221fc85486dcfe92be51834a4060fc423009c47c
font_01_sfnt_off00006fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD1 10644 bytes
SHA-256: 77172a0c9c772f4db4b5aa4d7522238ce8e7bd30eb4fc8b013ef99e6b6841115
font_02_sfnt_off0000941a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x941A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3