Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2b640f98a116e1f…

MALICIOUS

PDF

73.4 KB Created: 2021-01-10 17:14:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: fcd5a35592c1286afb390b91f3d08a3b SHA-1: 819faf7f21bfcf7da16637fa46919416d3e5a7c7 SHA-256: b2b640f98a116e1f8514231a588ba25aba61fd8637858ad3fd14c2448bcef996
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://traffmen.ru/wb?keyword=hide%20and%20seek%20among%20us In PDF document text
    • https://site-1173778.mozfiles.com/files/1173778/fuporexekujujimod.pdfIn PDF document text
    • https://bigogewoxof.weebly.com/uploads/1/3/0/7/130739615/9ecd11e.pdfIn PDF document text
    • https://site-1188771.mozfiles.com/files/1188771/hearts_of_palm_pasta_shark_tank.pdfIn PDF document text
    • https://wubepina.weebly.com/uploads/1/3/4/7/134721378/afee60.pdfIn PDF document text
    • https://wusikizojig.weebly.com/uploads/1/3/4/8/134883510/rizesow-pupasejatawef.pdfIn PDF document text
    • https://nukarudurarera.weebly.com/uploads/1/3/1/3/131380042/f179959.pdfIn PDF document text
    • https://venumokup.weebly.com/uploads/1/3/4/8/134866871/fefuvubogukenep.pdfIn PDF document text
    • https://site-1178773.mozfiles.com/files/1178773/lugewoke.pdfIn PDF document text
    • https://ziwobusomuka.weebly.com/uploads/1/3/1/6/131607005/vesazavix-zujawupetawo-venoxa-juwotomib.pdfIn PDF document text
    • https://site-1168109.mozfiles.com/files/1168109/87805980155.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393035/normal_5fe3220e871ca.pdfIn PDF document text
    • https://site-1174507.mozfiles.com/files/1174507/like_video_status_song.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459939/normal_5ff426dfecf89.pdfIn PDF document text
    • https://vofepelatuj.weebly.com/uploads/1/3/4/7/134768647/e248e2a372a70.pdfIn PDF document text
    • https://mepodatadun.weebly.com/uploads/1/3/1/4/131452799/4139385.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e4e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E2 5044 bytes
SHA-256: df939b0ef96983b1920ea66792c6e297d217cc92d57de0f029ad4da831facaa1
font_01_sfnt_off0000f5fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5FA 10260 bytes
SHA-256: c5dbd9982a5118783109469704f3292ed47bc19692f481a27200b13a8355a501

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