Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d28007a21460f57…

MALICIOUS

PDF

72.1 KB Created: 2021-03-25 02:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: c850e6460f4c5d325428d7029f795891 SHA-1: 3980ab375979a0e56a5f3aa57b81f3d2e9fcf208 SHA-256: 0d28007a21460f57f81f567314fd4654b741788decf84e969dabc8beacd7405a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/wix?keyword=dig+a+hole+in+the+meadow+banjo+tab PDF link annotation
    • https://cdn.sqhk.co/puxedimuwo/judgeIl/rtc_transportation_las_vegas_nevada.pdfIn PDF document text
    • http://igclienteam.com/vinumogizotipivovuphzpa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489032/normal_5fcd6c7998be1.pdfIn PDF document text
    • https://fomodaduvi.weebly.com/uploads/1/3/4/7/134700625/9613163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471240/normal_600c60a331a00.pdfIn PDF document text
    • https://pevumufaropis.weebly.com/uploads/1/3/4/7/134706438/3639772.pdfIn PDF document text
    • http://samyog.ru/nutiwonufufuseomkc6.pdfIn PDF document text
    • https://cdn.sqhk.co/vatomepipiw/gjhfghr/8342997678.pdfIn PDF document text
    • http://qwonder.space/hamilton_spectator_crime_reporters3sm9l.pdfIn PDF document text
    • https://cdn.sqhk.co/gunumiku/ihgpvgh/barifuridaganirurinat.pdfIn PDF document text
    • https://gugukufetufa.weebly.com/uploads/1/3/4/3/134337187/xujemimekosi-vikavuliwiga-vutibaz-tadoxe.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/4jhh7jg/south_movie_2019_mp4.pdfIn PDF document text
    • http://trylait.pro/logical_reasoning_test_with_answerst3vf4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371814/normal_5fcd9f0bb20ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480173/normal_5ff45692d740b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408984/normal_604f1ee27127b.pdfIn PDF document text
    • https://kulebizafiwuna.weebly.com/uploads/1/3/4/4/134434336/zawovakevirer_ronoto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379035/normal_601fc3c5ebb17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447884/normal_6034cd8c854a5.pdfIn PDF document text
    • http://ueuniti.xyz/42787700819n2gjd.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/midaguvimabof/comparative_advantage_and_opportunity_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/94838039059.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/dusulowifowibi.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_off0000dcc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC2 5272 bytes
SHA-256: e2cfc79029770092a015ee0dc5267726fec0ac3fb9f3ec2840edaabb8c3473f1
font_01_sfnt_off0000eea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA7 10608 bytes
SHA-256: c90f1033b1d04dc579564e2cf5d9a2b4ed8b77521d982b63673095ef99a87989

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