Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1028b8a6931234…

MALICIOUS

PDF

72.5 KB Created: 2021-03-18 04:37:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: ec206728d6c36bba72314d64fec4f600 SHA-1: 4b9007ccd4e8924f0e3a43308c2d52d89035021d SHA-256: fd1028b8a69312343131e160a8f7667e52a0e75f684f7798a4778505b0da4914
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically flagged as an external URI pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://druttle.ru/wix?keyword=lipo+balance+wire+extension PDF link annotation
    • http://xepuxesadara.mypressonline.com/87295573101.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447647/normal_600c43acbf46c.pdfIn PDF document text
    • https://rasuzumiketasak.weebly.com/uploads/1/3/4/3/134393825/rimedepaza_mepukezujolu_rizup.pdfIn PDF document text
    • http://katipef.medianewsonline.com/kixogamemev.pdfIn PDF document text
    • http://gofimowekes.66ghz.com/nerefimunekaxagu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421336/normal_5fcdf96a8fe2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374968/normal_603693239a5c2.pdfIn PDF document text
    • https://nofogiso.weebly.com/uploads/1/3/1/3/131398128/ff80c1f231.pdfIn PDF document text
    • http://mixutadumekaje.mypressonline.com/sing_pentatonix_lyrics_deutsch.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465559/normal_600808516aeba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_601b46b625d21.pdfIn PDF document text
    • http://pujejunovidagem.22web.org/aron_and_aron_statistics_for_psychology.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
    • https://uploads.strikinglycdn.com/files/51e4820c-17c8-4720-9469-331b727eb12b/xolomudugobanejijoteva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e53708b-e155-4160-a409-64940165cb17/soccer_clubs_for_8_year_olds.pdfIn PDF document text
    • http://jojovezelel.rf.gd/fakosesotazulopa.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/bacillus_species_characteristics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbeb8ea0-23b5-48de-8af4-e4dd591d4902/xexidoni.pdfIn PDF document text
    • http://wikegelif.epizy.com/tupabege.pdfIn PDF document text
    • http://limuzanesaz.rf.gd/difofadu.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/fepekopugadudigox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17f4dddf-4612-437c-922b-1a09c3071909/topuduxevetosuvufale.pdfIn PDF document text
    • http://pujumek.myartsonline.com/52179018385.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_off0000d19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD19C 4956 bytes
SHA-256: d072342a7ee26ead3b56d4a4461adc4364a92ce8240a29b5d375ae9b081e8119
font_01_sfnt_off0000e27e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27E 10752 bytes
SHA-256: 1739bb60ce2a49112315e8bd2f7b6745c3b6e4f2f8825af5a8ee5d5b7ab53eb4
font_02_sfnt_off000106a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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