Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc864b8895594b05…

MALICIOUS

PDF

71.7 KB Created: 2021-06-08 12:59:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e2d7209af2fb094625bf4266d958024f SHA-1: 5170d235e3627a8886d037d3bd9a2dd992f59e06 SHA-256: fc864b8895594b050b29c260cc50474dc1c1ed313f65e81a71a82f6287efd667
126 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a link farm and has been flagged by ML classifiers and ClamAV as malicious phishing content. The embedded URL points to a suspicious domain, likely intended for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristics suggest an attempt to exploit users through deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://garglob.ru/pbw?utm_term=gree+mini+split+error+code+e8 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406466/normal_6016fef24f84e.pdfIn PDF document text
    • https://milorupubi.weebly.com/uploads/1/3/4/3/134317418/febuzawifizajaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414514/normal_5fcc391b8e3c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385030/normal_6003441d36eda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405467/normal_6068a3ef9ee45.pdfIn PDF document text
    • https://pafirolexorawu.weebly.com/uploads/1/3/4/6/134612045/8623857.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467287/normal_6009dae09c859.pdfIn PDF document text
    • https://ferovagadimi.weebly.com/uploads/1/3/2/6/132696304/fifuwovazuzes.pdfIn PDF document text
    • https://mubafuzolifuben.weebly.com/uploads/1/3/4/6/134644730/zagejekuwexukutebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384468/normal_5fe1be2579e17.pdfIn PDF document text
    • https://vatipasa.weebly.com/uploads/1/3/0/7/130775610/5271606.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459175/normal_6047bde1e780f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_603112c7f25fc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466367/normal_5fc97808191e9.pdfIn PDF document text
    • https://nixalimug.weebly.com/uploads/1/3/2/6/132680811/1319358.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lipadune.pbworks.com/w/file/fetch/144578766/under_observation_my_first_loves_and_i_anime_planet.pdfIn PDF document text
    • http://bamedun.pbworks.com/f/tractor_data_kubota_b8200.pdfIn PDF document text
    • http://jubitelow.pbworks.com/f/pokemon_adventure_red_chapter_gba_cheats.pdfIn PDF document text
    • http://xokizobaf.pbworks.com/w/file/fetch/144756564/bixewawikowuwitaluveriga.pdfIn PDF document text
    • http://kibumezi.pbworks.com/f/84010754482.pdfIn PDF document text
    • http://siseraxoru.pbworks.com/f/31484672442.pdfIn PDF document text
    • http://xojifot.pbworks.com/f/get_serial_number_command_linux.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_off0000dc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC76 5236 bytes
SHA-256: 63e38db08f7d5402c7d08736e72cf6e7127b0eee144ff63dc64f44f04109baee
font_01_sfnt_off0000ee38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE38 10436 bytes
SHA-256: 3d9b80993dbb5bf09fd0aa8e65f9880c6844f533cb162933d37c9b6474e47c98

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