Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd979bd3d4d1085…

MALICIOUS

PDF

74.1 KB Created: 2021-01-22 05:56:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3a30693e4220011a560dfe705b782252 SHA-1: 6ea99261964087c7ce70faa007a0c1be5b5bd005 SHA-256: 0fd979bd3d4d108578df745f45ebf32c846a434cbef77948960521d0dff25960
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high likelihood of malicious intent, likely for phishing or malware distribution. The embedded URL 'https://traffnew.ru/aws?utm_term=free++fairstars+audio+converter%252B+crack' further suggests a lure related to software cracks. ClamAV detection as 'Pdf.Phishing.Trojan' confirms the malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/aws?utm_term=free++fairstars+audio+converter%252B+crack PDF link annotation
    • https://site-1179000.mozfiles.com/files/1179000/thi_p_chuc_sinh_nh_t.pdfIn PDF document text
    • https://site-1171925.mozfiles.com/files/1171925/vivakesadum.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422622/normal_5fe2bc733c436.pdfIn PDF document text
    • http://pimazisiperej.iblogger.org/durekoxelobezif.pdfIn PDF document text
    • https://site-1254635.mozfiles.com/files/1254635/poludilufetitu.pdfIn PDF document text
    • https://cdn.sqhk.co/dosapupa/jhifhao/terevigesos.pdfIn PDF document text
    • http://vesibigezedenu.iblogger.org/congruent_and_similar_shapes_worksheet_tes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446378/normal_6003647809382.pdfIn PDF document text
    • https://cdn.sqhk.co/wuladupuzo/HghTarj/wakut.pdfIn PDF document text
    • https://site-1173608.mozfiles.com/files/1173608/disney_heroes_battle_mode_tier_list_june_2020.pdfIn PDF document text
    • https://site-1168232.mozfiles.com/files/1168232/stickman_simulator_final_battle.pdfIn PDF document text
    • https://cdn.sqhk.co/fofubulami/jejhQhb/splash_wines_shipping.pdfIn PDF document text
    • https://site-1178773.mozfiles.com/files/1178773/65651047949.pdfIn PDF document text
    • https://site-1178325.mozfiles.com/files/1178325/9589956194.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381759/normal_5fe4d5ea15d73.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/takebemanijewok/15812919601.pdfIn PDF document text
    • http://kanisal.epizy.com/50584560490.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/joxaginavuvufo.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/53665297485.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/homebrew_race_template_5e.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_off0000e47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE47D 5064 bytes
SHA-256: 67727e48006540eecb6a56a24928c6dd9598322b6ad5f1e19496e2bd3b07db60
font_01_sfnt_off0000f5d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D1 10708 bytes
SHA-256: 3af079b127f8bf7a2756ee4333ba214b0ec8a7dc12a148ed2932a92205732523

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