Malicious PDF — malware analysis report

Static analysis result for SHA-256 050d3674b370ac50…

MALICIOUS

PDF

72.3 KB Created: 2021-02-22 03:50:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 03f70d61685dd7236a70136113bd40ce SHA-1: 466fc24f7b9e5d124d1ae2d2e4f33e9aab977e30 SHA-256: 050d3674b370ac50fd5b594189c045624fee5649f208c9c05f243093184e64f7
136 Risk Score

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/123?utm_term=what+does+the+term+whipped+dog+mean PDF link annotation
    • http://myfoxing.online/324375414409n9xx.pdfIn PDF document text
    • http://copyrightnotices-form.com/spell_my_name_in_hieroglyphics9swx7.pdfIn PDF document text
    • http://ing-jobs-opportunities.com/618511352611w922.pdfIn PDF document text
    • http://nejugikolivakam.iblogger.org/depeleguxerosiforuduwuvim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485807/normal_5fdef1ebe162a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455183/normal_5fdd5b568ed7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_6032e417b0041.pdfIn PDF document text
    • http://repair-planshetov.ru/72158910781oacib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384029/normal_601701805491f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375356/normal_60311d613f486.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445128/normal_5ffd4667cee01.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/kukupunopedon/65343509701.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/blessed_assurance_hymn_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/zizazenulewezetotot.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/66312530537.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_off0000ddb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB4 5444 bytes
SHA-256: 3b1e786a95886021f19390a1e2c02de95c5060edd0de566a103f53cf96fc6aaa
font_01_sfnt_off0000f028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF028 10640 bytes
SHA-256: 61343ce1038d723872f2e3fbdedf05be69dfb6231de42ba9a1329612db2f0a8f