Malicious PDF — malware analysis report

Static analysis result for SHA-256 002ad07a58071c67…

MALICIOUS

PDF

71.3 KB Created: 2021-03-03 22:33:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: da5a648dc1362fdc6abb3be9c4a6fd5f SHA-1: 6a98a8d6f3e163c60fadd3b63c72840c69d4cab6 SHA-256: 002ad07a58071c67adff836510a993de64afcbfe65c6bc1fc096be48f572683e
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable hosting and link farms, indicative of SEO manipulation or a phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites.

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://lozipotod.ru/wb?keyword=casio%20alarm%20chrono%20electroluminescence%20manual PDF link annotation
    • https://lefatelaxebaj.weebly.com/uploads/1/3/5/3/135398996/1920700.pdfIn PDF document text
    • http://normab-id.com/vovaragolunevidifazaboje3mtq.pdfIn PDF document text
    • https://dekewojevor.weebly.com/uploads/1/3/4/1/134132084/kududo-gezisizujuju-vowugojitugi.pdfIn PDF document text
    • http://matras-24.ru/muduresilukasafaboreopdf.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/96855206319.pdfIn PDF document text
    • http://trudogoliya.online/79062772994cuoer.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/33357635855.pdfIn PDF document text
    • http://vezerfa.xyz/kalivikh6cp.pdfIn PDF document text
    • http://vir-tus.com/vagikonokitebalonot5wigk.pdfIn PDF document text
    • http://expo-kit.ru/39331417073bzi33.pdfIn PDF document text
    • https://dolevepi.weebly.com/uploads/1/3/4/5/134587457/6668300.pdfIn PDF document text
    • http://tavaxibewoposo.iblogger.org/nunatuxugegokavujokabe.pdfIn PDF document text
    • https://falaxejuwutop.weebly.com/uploads/1/3/2/6/132681153/f152dc6e7.pdfIn PDF document text
    • https://bekitatabegoze.weebly.com/uploads/1/3/0/7/130775701/dijifop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://diwavubodinaroj.myartsonline.com/xepazan.pdfIn PDF document text
    • http://tebevem.rf.gd/how_quickly_does_priority_mail_ship.pdfIn PDF document text
    • http://jixonolalosixew.rf.gd/podoxaziluwewu.pdfIn PDF document text
    • http://tudifilik.rf.gd/fishbone_template_for_root_cause_analysis.pdfIn PDF document text
    • http://pevogikuxupeja.onlinewebshop.net/kunedobuvojikisudukob.pdfIn PDF document text
    • http://pikiregofi.epizy.com/how_to_clean_glass_cooktop_with_baking_soda_and_vinegar.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF51 4944 bytes
SHA-256: 0b8b90aec378bdcbebe20e70ea9eaa5781eafcc950f607c333531efcd6924553
font_01_sfnt_off0000dfee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEE 9832 bytes
SHA-256: 3208bed03a8414e7efff85c84a4939911bbe92462121255eaf6bb540fb318dc3
font_02_sfnt_off00010194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10194 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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