Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fb1035d93e2d2e6…

MALICIOUS

PDF

38.0 KB Created: 2020-11-09 16:20:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: f7b4fb0484530aabe7c4a276790087a6 SHA-1: 1845ee7e02d2c2b08268a588e9b8b99d538e666c SHA-256: 0fb1035d93e2d2e67b2ac25706060f4173335ecd9b94a99c2a41f5a85cbdb103
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded URLs, with one prominent URL pointing to a suspicious domain 'trafficel.ru'. The ML classifier strongly flagged this PDF as malicious, and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for malicious links. While no scripts were explicitly extracted, the presence of embedded URLs and the ML detection suggest an attempt to redirect the user to a malicious site, likely for phishing or to download further malware.

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=sports+heads+soccer+2014 PDF link annotation
    • https://dedelazixuni.weebly.com/uploads/1/3/4/5/134596723/lozuguzumalibo-dulovakevu.pdfIn PDF document text
    • https://kojepogezoxuta.weebly.com/uploads/1/3/4/4/134487575/4fe582bc16ee0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384480/normal_5f959c2d1cdd3.pdfIn PDF document text
    • https://xijonezamo.weebly.com/uploads/1/3/1/4/131407630/gowena.pdfIn PDF document text
    • https://zexenokupilifuw.weebly.com/uploads/1/3/4/3/134375928/pofurijagedub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373281/normal_5fa4c1382df65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380228/normal_5f8b5b7bcf73c.pdfIn PDF document text
    • https://jedarixires.weebly.com/uploads/1/3/0/9/130969076/0504b6.pdfIn PDF document text
    • https://sopoxovolofu.weebly.com/uploads/1/3/4/5/134509961/jusure.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426557/normal_5fa4630697014.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://s3.amazonaws.com/ruzaganog/38064079426.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/fishing_boat_name_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/english_language_techniques_gcse.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_off000048ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48EC 5280 bytes
SHA-256: fe9ca4beb67d92785505f9545403b1740a0f089612132aa01f0435275fce0755
font_01_sfnt_off00005aec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AEC 10040 bytes
SHA-256: fa22d2edc53b2c0b2ca8cb49aaff9dd4fd9afabdbbda30bf47c38611263f7c29
font_02_sfnt_off00007d48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D48 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.