Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 c275b4a84282d769…

MALICIOUS

PDF / .VIR

143.5 KB Created: 2024-01-01 14:03:43 Authoring application: ImageMagick First seen: 2024-05-07
MD5: fffce489d5c28925195764ea27efe183 SHA-1: 7c23064ed9aeabcefe9d160055552ed16488a093 SHA-256: c275b4a84282d769635cd7bf117d8bd39ab9ed49d95ebfd295b0d1f2719dbacf
236 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5852

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://adservice.google.com.gt/ddm/clk/424929466;226923624;r;;%3F//5.imimg.com/data5/SELLER/Doc/2023/12/372760333/CC/BB/MD/206281115/1d7b9cb7-f42f-44f1-847c-917f73ce1a8b.pdf In PDF document text
    • https://wodijejefisipil.lovali.co.za/931948911737862814?dijuwopagebekasebafuk=pitavifuvosenifoxajibazaleguragasifetepepupeluketenamibowevimizepubasebuvefabejozitafipuzosexewejuwefetororirugibupikuwikufelekalipofidobeketewokupexirimorunimupavaduvofenilotarupopokewunibefuwolosajosuroru&utm_term=ff14+rathalos+extreme+guide&zugikuminevusogijepogabupakidureziwuxovetadevefisupevoxalowiratimilokozalutasuvegana=wepakugenesarawolazeduzixulusoxajotinazonozagilazodapofurogolazezedenurasodazamekaduzopogurofujewanetejidobapIn PDF document text
    • https://wodijejefisipil.lovali.co.za/931948911737862814?dijuwopagebekasebafuk=pitavifuvosenifoxajibazaleguragasifetepepupeluketenamibowevimizepubasebuvefabejozitafipuzosexewejuwefetororirugibupikuwikufelekalipofidobeketewokupexirimorunimupavaduvofenilotarupopokewunibefuwolosajosuroru&utm_term=ff14+rPDF link annotation
    • https://wodijejefisipil.lovali.co.za/931948911737862814?dijuwopagebekasebafuk=pitavifuvosenifoxajibazaleguragasifetepepupeluketenamibowevimizepubasebuvefabejozitafipuzosexewejuwefetororirugibupikuwikufelekalipofidobeketewokupexirimorunimupavaduvofenilotarupopokewunibefuwolosajosuroru&utm_term=ff14+rathalos+extreme+guide&zugikuminevusogijepogabupakidureziwuxovetadevefisupevoxalowiratimilokozalutasuvegana=wepakugenesarawolazeduzixulusoxajotinazonozagilazodapofurogolazezedenurasodazamekaduzopogurofPDF link annotation
    • https://adservice.google.si/ddm/clk/425484003;227454619;f;;%3F//5.imimg.com/data5/SELLER/Doc/2023/12/372753897/KY/BB/LI/206281135/484bab08-bafb-4892-9a6f-1dc7ab13ef06.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/ebc04cb4-ac32-4b25-b417-8a99602f177e/downloads/zovepolelafotevamefilakog.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0001eb5b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001eb5b.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001eb5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EB5B 11720 bytes
SHA-256: 70da5bd0fdd016844d36d4032a0278dd43c3f7ad622d4b07343247b47900db22
font_01_sfnt_off00020770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20770 16316 bytes
SHA-256: 30e48110be953147f921ed30701f0dd0636cea5c9ffa20611f58aa15dac3bbf9