Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd09b385e55a5f82…

MALICIOUS

PDF

74.4 KB Created: 2021-04-30 00:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bad16d4a7e3a86c19b8cbcd55c62d56e SHA-1: b6e1058e9dfd38374b7c27b5a95f241d4f69cc88 SHA-256: fd09b385e55a5f827d0e333667e972f0a48f931894a1f5de465ce2ab7732cf64
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.9991

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://xezojetit.ru/strik?utm_term=how+to+reset+fossil+watch+after+changing+battery PDF link annotation
    • http://kurixuj.sportsontheweb.net/nogoxolunusunuginegos.pdfIn PDF document text
    • https://fotofewoxa.weebly.com/uploads/1/3/4/8/134849098/zogokik.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485166/normal_600737049e769.pdfIn PDF document text
    • http://j3vnci4.xyz/2656779856nly56.pdfIn PDF document text
    • http://xatovapotogu.mywebcommunity.org/58350182048.pdfIn PDF document text
    • http://masajsalonunuz.com/versatile_sew_in_weaveb1s0f.pdfIn PDF document text
    • https://zezonusadife.weebly.com/uploads/1/3/1/4/131410479/7070668.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/tijadoxetumenopulexibuju.pdfIn PDF document text
    • http://xevojifixifepi.scienceontheweb.net/memezojub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480170/normal_5fd7867a6463b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424024/normal_5ffa95d0b3ce5.pdfIn PDF document text
    • http://sijemogezabusa.sportsontheweb.net/travel_rock_ficha_medica.pdfIn PDF document text
    • http://unreguezff.rest/why_wont_my_ice_maker_dumps_icezox0s.pdfIn PDF document text
    • https://gorofegi.weebly.com/uploads/1/3/4/4/134462705/pikovovutuvom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368954/normal_606497e4b7c74.pdfIn PDF document text
    • https://gawubodukajine.weebly.com/uploads/1/3/0/9/130969599/winutugewiboz.pdfIn PDF document text
    • http://vowufijetapiko.sportsontheweb.net/92069465599.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495999/normal_604cc52f62d45.pdfIn PDF document text
    • http://pearhaidhr.fun/diesel_cycle_solved_problemsf81r3.pdfIn PDF document text
    • http://copyright-securityx.com/wogopijokodapabord.pdfIn PDF document text
    • http://vanlit.ru/snapper_self_propelled_lawn_mower_parts_diagramvd1or.pdfIn PDF document text
    • http://7lessons.fun/klh_windsor_12_powered_subwoofer_-_black_oak81sgl.pdfIn PDF document text
    • http://bizifemodefi.mygamesonline.org/podakofowuvisoka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuxokoberibaw.atwebpages.com/air_conditioning_principles_and_systems_4th_edition_free_download.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_off0000e5f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F7 5436 bytes
SHA-256: bcb27daf5e27b7204c466303c1726f891d59b80584820a223de89cd88438ae0b
font_01_sfnt_off0000f88c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88C 10308 bytes
SHA-256: 5104536fb8f601a8f12a7f24693828b9f45950e14bdea56b41328af3a95c7f49

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