Malicious PDF — malware analysis report

Static analysis result for SHA-256 39198027008f930e…

MALICIOUS

PDF

92.6 KB Created: 2021-03-30 01:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7ba1f70f701fab1333080a8841bcfebe SHA-1: 2cfee6b05b262976fc048eca38780864c444a127 SHA-256: 39198027008f930e4206198c02dcbe32518a9ff02ef7a734509d493e61924503
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 0.9996

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://seumenha.ru/award?keyword=behave+robert+m+sapolsky+pdf PDF link annotation
    • https://nipixajivoru.weebly.com/uploads/1/3/1/4/131436983/raxewosemop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485434/normal_60511bb9b00b8.pdfIn PDF document text
    • http://firstsecu-paypal.com/58069890158weagg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427085/normal_606176658f671.pdfIn PDF document text
    • http://dodemawaj.iblogger.org/zomakatuxov.pdfIn PDF document text
    • https://dulewidojupetor.weebly.com/uploads/1/3/2/6/132695372/saduwulen_zenewizinivabaf_vilapinivajilak.pdfIn PDF document text
    • http://raisinsapp.club/vowadizizeniniximi6doa.pdfIn PDF document text
    • https://zetojaxonafavop.weebly.com/uploads/1/3/5/3/135309172/2779926.pdfIn PDF document text
    • http://itfamily.pro/baasha_full_movie_300mboakub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370055/normal_601d096503549.pdfIn PDF document text
    • https://ludunijup.weebly.com/uploads/1/3/0/9/130968942/tupirejiwad_vofobopubaroz.pdfIn PDF document text
    • https://lefoxidegej.weebly.com/uploads/1/3/4/5/134526886/fodafipabewanu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367290/normal_5fd2c52438cc0.pdfIn PDF document text
    • http://easylearning.space/3557856068750wwk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://36071b1a-d853-4ad1-bccf-0ed894d94038.filesusr.com/ugd/906e9f_a6620472dce74a7f9c07ac1e77919252.pdf?index=trueIn PDF document text
    • http://tovujopojat.epizy.com/elf_bowling_full_game_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00ee86e9-f1d9-4fe9-8727-b10ea82aab2f/honda_civic_2006_ex_coupe_oil_filter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d414393-0dde-4338-99b6-f54976e3f80b/how_long_to_cook_chicken_in_vertical_rotisserie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/606ef79c-5f48-446a-923f-016a73fff8bf/que_hace_mecanica_industrial.pdfIn PDF document text
    • https://9fbaa0db-fe9e-443e-b503-3d02ea494c21.filesusr.com/ugd/d417e9_8bfb6eac5be14cd3bf2cf71b50cab74c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed26cfcb-ff39-4dc0-bd53-0aa559a70ddf/how_to_become_tableau_certified.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000129c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129C4 5696 bytes
SHA-256: 4548f0fade4e7ee32ada3cca564f71e95023d7082ee0d9f9052834b39c8d764d
font_01_sfnt_off00013d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D06 11292 bytes
SHA-256: 9cbeb7294f88f86db60a9fa76167e06fe464c8f64fb2f7f963c39813ea4f6adb

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