Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 ff79fed6127f5a8d…

MALICIOUS

PDF / .VIR

279.2 KB Created: 2023-08-20 02:17:59 Authoring application: OpenOffice.org First seen: 2024-05-07
MD5: 99c774e0c5a329674092c01a0ac02870 SHA-1: 40f7ccd9d49e02de809bfa8d454b8a45ea8ab669 SHA-256: ff79fed6127f5a8dfafe4ca131e6cf4b2787dd99bbbd3b22801d0255b674ce9f
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9761

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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.co.in/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/c7f34229-b1a0-4e28-8456-a7df1c4552b5/downloads/frutas_y_verduras_de_temporada_espana.pdf In PDF document text
    • https://adservice.google.com.sa/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/5abeb254-4db6-4b8a-b274-2564c6414265/downloads/editing_using_preview.pdfIn PDF document text
    • https://adservice.google.com.fj/ddm/clk/426382440;228185261;d;;%3F//img1.wsimg.com/blobby/go/62bebe3a-24c2-4a56-9b26-65d7a4a8233d/downloads/jatamunulodasuw.pdfIn PDF document text
    • https://adservice.google.com.ly/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/2ddc9df0-2bb4-4ca1-965b-bbc3c99b0e7d/downloads/45847479662.pdfIn PDF document text
    • https://nalojamer.mofien.co.za/365412728815873664?zilijunelepirelanasibeligudavoninomavewelisinagitedoboxuxevovetopuvupukaki=namakuxavososubisobofojabobuzagamiliwomisuvujofevikijawudepelinofoduvexipipasonoveratitosimukinagebulorozunudopitulupofugifoxasejigagipusanukazurujavisolitokedaxomajafujisaradenubosuvoxokumapadategavuwasilasal&utm_kwd=datally+apk+app+download&sajofutiludebevuluvomutufufufavuxiwexadunejirobaluvakebaduvixugedemitosejuzovetojapamepa=kodesalunesadibulaluwujumijolivomeguzukeseduxijawodapixejetuderopodewobatupapaxusogajabegagefilatosanaduxonejabivuvobefamapisipezifojebexaIn PDF document text
    • https://nalojamer.mofien.co.za/365412728815873664?zilijunelepirelanasibeligudavoninomavewelisinagitedoboxuxevovetopuvupukaki=namakuxavososubisobofojabobuzagamiliwomisuvujofevikijawudepelinofoduvexipipasonoveratitosimukinagebulorozunudopitulupofugifoxasejigagipusanukazurujavisolitokedaxomajafujisaradPDF link annotation
    • https://nalojamer.mofien.co.za/365412728815873664?zilijunelepirelanasibeligudavoninomavewelisinagitedoboxuxevovetopuvupukaki=namakuxavososubisobofojabobuzagamiliwomisuvujofevikijawudepelinofoduvexipipasonoveratitosimukinagebulorozunudopitulupofugifoxasejigagipusanukazurujavisolitokedaxomajafujisaradenubosuvoxokumapadategavuwasilasal&utm_kwd=datally+apk+app+download&sajofutiludebevuluvomutufufufavuxiwexadunejirobaluvakebaduvixugedemitosejuzovetojapamepa=kodesalunesadibulaluwujumijolivomeguzukesedPDF link annotation
    • https://img1.wsimg.com/blobby/go/c7f34229-b1a0-4e28-8456-a7df1c4552b5/downloads/fosikudejanam.pdfIn PDF document text
    • https://adservice.google.is/ddm/clk/424929466;226923624;r;;%3F//img1.wsimg.com/blobby/go/b6270536-eb2b-4c0a-bd69-aa2354e7f307/downloads/rtsp_player_android_open_source.pdfIn PDF document text
    • https://adservice.google.rs/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/e9f19af7-97ef-42fb-a446-2ceed3101003/downloads/bikez.pdfIn PDF document text
    • https://adservice.google.pt/ddm/clk/424929466;226923624;r;;%3F//img1.wsimg.com/blobby/go/c7f34229-b1a0-4e28-8456-a7df1c4552b5/downloads/xefenikip.pdfIn PDF document text
    • https://adservice.google.ga/ddm/clk/408533097;208818505;l;;%3F//img1.wsimg.com/blobby/go/c3be0091-4534-4191-a72e-570acc745d3e/downloads/74992740225.pdfIn PDF document text
    • https://adservice.google.ws/ddm/clk/300948314;127869103;e;;%3F//img1.wsimg.com/blobby/go/15170974-cdfc-428a-84a4-4de04faad4bf/downloads/kujepabojufijofusu.pdfIn PDF document text
    • https://adservice.google.cf/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/dc2aabc9-3cd7-46b2-941d-0947f78733e0/downloads/21409552754.pdfIn PDF document text
    • https://adservice.google.ws/ddm/clk/478229754;284365575;c;;%3F//img1.wsimg.com/blobby/go/c3be0091-4534-4191-a72e-570acc745d3e/downloads/kesonotamimiwake.pdfIn PDF document text
    • https://adservice.google.ws/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/5eb9ed55-6012-42bd-a668-042b0c17ace3/downloads/nozedoko.pdfIn PDF document text
    • https://adservice.google.lu/ddm/clk/300948314;127869103;e;;%3F//img1.wsimg.com/blobby/go/38ef9b17-7208-4190-b984-7cd4d41b9160/downloads/43105749620.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/60fc71ee-828b-4eb0-94ae-1d090084a0b0/downloads/nasijuni.pdfIn PDF document text
    • https://adservice.google.gl/ddm/clk/310682673;138356009;g;;%3F//img1.wsimg.com/blobby/go/5eb9ed55-6012-42bd-a668-042b0c17ace3/downloads/74650765980.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_off00040a19.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00040a19.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40A19 11136 bytes
SHA-256: be137f1016e379af7d85f686795f7a862736f2be316de67fe2e61e9dbe71dbcf
font_01_sfnt_off000423c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x423C8 15760 bytes
SHA-256: 23553c4d71fd6ab9e7b2a931ccaa64d5e26db78682bf80c4a104331e34173a4a