Malicious PDF — malware analysis report

Static analysis result for SHA-256 30eac5e9f72af766…

MALICIOUS

PDF

69.7 KB Created: 2021-02-21 00:37:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: be2af8ea2b63838650f0e4db49c7913f SHA-1: 4846283d6a743f0ee21fcd68b19791f51caf2351 SHA-256: 30eac5e9f72af7664f846c808bfe52d7ac8b4686e89e70a34a2ca292793516eb
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though partially garbled, contains text related to a "voldyne 5000 volumetric exerciser" and a URL, suggesting a phishing or social engineering lure. Multiple external URLs were extracted, with the primary one being https://maypoin.ru/strik. The presence of embedded PDF objects and the nature of the extracted URLs point towards a phishing campaign designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/strik?utm_term=how+to+use+voldyne+5000+volumetric+exerciser PDF link annotation
    • https://cdn.sqhk.co/tarudifirew/jcifhaP/82545419787.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368740/normal_5ff0eb1933f52.pdfIn PDF document text
    • http://igcopyrightverify.com/extinct_and_endangered_animals_worksheeta5dly.pdfIn PDF document text
    • https://cdn.sqhk.co/bafiweba/NCgdN9y/81527550216.pdfIn PDF document text
    • https://cdn.sqhk.co/jifexekezeli/gjhijVY/gokaxafotifejufotura.pdfIn PDF document text
    • http://twobigs.space/atwood_rv_water_heater_installation_manualgnswv.pdfIn PDF document text
    • http://lojasamericanasbr.com/gypsum_ceiling_installation_guidehx097.pdfIn PDF document text
    • https://cdn.sqhk.co/lazuxorus/g6if4ia/soredigabepadipexagek.pdfIn PDF document text
    • https://cdn.sqhk.co/paxepedamaxa/fiemWsR/goat_simulator_payday_trophies_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/ijhajgR/witojuja.pdfIn PDF document text
    • http://instasurprise.online/77685044042q6p1p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/53450683555.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/wogipozamikidisu.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_off0000d3be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BE 5424 bytes
SHA-256: c16cc8269ff16e35b5c5b6b102b19d39709b04229c8703b851f03c897e52113e
font_01_sfnt_off0000e642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE642 10612 bytes
SHA-256: 461832ca50d16e4a92181afc651ee8bd6d165d5e59519715957d40f3e24b1d7b

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