Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ba543d930a22fe…

MALICIOUS

PDF

62.8 KB Created: 2020-12-24 12:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b81228f4d25afeccce5345b70579dba4 SHA-1: 883a5b41baf5329fda8a0717216876fd08e6a5fe SHA-256: 32ba543d930a22fe12dea74f2a165d6f35183be6ef0bde21324c64d96d37e910
252 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/aws?utm_term=armaan+malik+songs++from+mr+jatt In PDF document text
    • https://mawubuzepegi.weebly.com/uploads/1/3/3/9/133989242/wegerunenul-vezekunadiga-tirikifexu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367920/normal_5fd0d6df4281b.pdfIn PDF document text
    • https://puvavijage.weebly.com/uploads/1/3/4/4/134461845/kaludupivitu.pdfIn PDF document text
    • https://gifetapajuloper.weebly.com/uploads/1/3/4/6/134682222/1032956.pdfIn PDF document text
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/vipar.pdfIn PDF document text
    • https://ritipovilij.weebly.com/uploads/1/3/4/6/134650849/8ae2d915.pdfIn PDF document text
    • https://kuzirorox.weebly.com/uploads/1/3/0/7/130775715/vamobapejim_xemeseradusavu_namune_bifuzi.pdfIn PDF document text
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/goxufalu-buwokututa-kuvuli-gafuzuvasiki.pdfIn PDF document text
    • https://welavomuwaj.weebly.com/uploads/1/3/4/6/134633166/5325175.pdfIn PDF document text
    • https://lugemubijovige.weebly.com/uploads/1/3/4/8/134879604/4968097.pdfIn PDF document text
    • https://daletutanedura.weebly.com/uploads/1/3/1/6/131636587/1983365.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/davawina/tasowura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05958f72-e3f6-4381-84b9-11b0592cac5c/ser_vs_estar_worksheet_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80afe29d-ea60-4792-b0dd-9000f9f6b57f/marvel_superhero_dress_up_games.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/15213919691.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_off0000ba0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA0A 5216 bytes
SHA-256: d45f0039fbe5c02c34e7f1ae322f006476cc795a63ed6a81e27802e61a851130
font_01_sfnt_off0000cbb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBB5 10180 bytes
SHA-256: 043ded72c32486fb8d69a67e3ddf630d4b13e5688b6fc9a734947c221dc3afef