Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a06d064aea1df0…

MALICIOUS

PDF

73.5 KB Created: 2021-03-01 08:26:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 089452ccf0defd2952650524753498fb SHA-1: 8386e63533f38488d501b9f779de8154c0d937d1 SHA-256: e3a06d064aea1df03455cc66c97d3818b5b333b568b8391b2bfeffad0b137df6
126 Risk Score

Malware Insights

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

The PDF document contains numerous external URLs, many of which are hosted on disposable domains, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=how+to+body+building+exercise+at+home PDF link annotation
    • http://terasivox.22web.org/tuzikawafusugitu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449622/normal_6015fdbc9269a.pdfIn PDF document text
    • http://tuderoba.getenjoyment.net/what_does_physical_stamina_mean.pdfIn PDF document text
    • http://penageli.getenjoyment.net/what_does_god_say_about_the_storm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387050/normal_5fecee426b3d9.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/72549620073.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454968/normal_6010cb896cea0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488329/normal_600ba89548d39.pdfIn PDF document text
    • http://pakepudowo.22web.org/96909755062.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417527/normal_603918c9f3629.pdfIn PDF document text
    • http://fosavaxenu.mypressonline.com/korean_alphabet_letters_with_english_translation.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/16094037228.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/30609788405.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486984/normal_6008ebd4d93b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492892/normal_603a67f592afe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lufafutogixafu.rf.gd/55147479846.pdfIn PDF document text
    • http://wififeju.atwebpages.com/what_is_another_word_for_a_breakfast_nook.pdfIn PDF document text
    • http://kimitumepogamom.epizy.com/solvents_used_in_non_aqueous_titration.pdfIn PDF document text
    • http://tulifal.onlinewebshop.net/21888670085.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_off0000e229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE229 5716 bytes
SHA-256: 50dbb784e6c2ee8d7799d0d0f12c956b883a476f560ce5645c2d94123bb286d9
font_01_sfnt_off0000f585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF585 10388 bytes
SHA-256: c49da9d0f012cee15fced823885639417ac37e008bc074976d2e8e982e4ec370

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