Malicious PDF — malware analysis report

Static analysis result for SHA-256 739c5bdb32dcc39b…

MALICIOUS

PDF

71.6 KB Created: 2021-02-16 22:30:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8dd28bfc7c9832ca9dbdf9f83d81d9c1 SHA-1: 16222e3c32afb1c8ed7c9eecce6cf01a979b93c6 SHA-256: 739c5bdb32dcc39b5db4c07748e5441389c4b8fa5711f5b173d83bca147affcf
186 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
  • 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.
  • 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/wix?keyword=case+1840+skid+steer+manual+pdf PDF link annotation
    • https://pelosewedi.weebly.com/uploads/1/3/4/7/134753512/gogakozorurenenoj.pdfIn PDF document text
    • https://xuzuvakewose.weebly.com/uploads/1/3/1/6/131637797/20f375fc0.pdfIn PDF document text
    • https://rilinozeni.weebly.com/uploads/1/3/1/0/131070652/pirunudewulaviwafo.pdfIn PDF document text
    • https://tedejewudokas.weebly.com/uploads/1/3/1/0/131070167/babc0bb10574d7.pdfIn PDF document text
    • https://butopejejix.weebly.com/uploads/1/3/2/8/132814220/1d7f400886f58.pdfIn PDF document text
    • https://xezitolisaja.weebly.com/uploads/1/3/1/4/131406502/zepil_kexomalexi_musekobilidosab_tijekikezefuzi.pdfIn PDF document text
    • https://supagerafigi.weebly.com/uploads/1/3/0/8/130874211/buriwawinozupobu.pdfIn PDF document text
    • https://lixazasowab.weebly.com/uploads/1/3/4/5/134588429/9091137a.pdfIn PDF document text
    • https://wemezixogasowed.weebly.com/uploads/1/3/1/6/131637562/fojusebo.pdfIn PDF document text
    • https://lakojelot.weebly.com/uploads/1/3/1/6/131637836/xufulipetemovorug.pdfIn PDF document text
    • https://gesigajas.weebly.com/uploads/1/3/4/6/134682002/raxexasewuzala-ridivinizu-xotexexi-xikexazevafi.pdfIn PDF document text
    • https://devumevone.weebly.com/uploads/1/3/4/5/134589636/2980708.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384045/normal_5fce225e2a6b8.pdfIn PDF document text
    • https://turoliletipusu.weebly.com/uploads/1/3/5/9/135969349/wulikaza.pdfIn PDF document text
    • https://fobinoxibenor.weebly.com/uploads/1/3/1/4/131437242/sonew.pdfIn PDF document text
    • https://lexapokugivida.weebly.com/uploads/1/3/1/8/131856754/773628.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fabodatutowew.epizy.com/ketogene_dit_rezepte.pdfIn PDF document text
    • http://bimimikojawador.rf.gd/54518895851.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7B 5520 bytes
SHA-256: a0eb877a33b8da3562e372336d82761b23c67ee77eeb8fc616921644b407fe24
font_01_sfnt_off0000e124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE124 9980 bytes
SHA-256: 9ced1960eb1c58dc38081e10094fc045aac58ee85d9ec3cd3d5612560d418abd
font_02_sfnt_off00010343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10343 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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