Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e1e1d8eee93040…

MALICIOUS

PDF

72.3 KB Created: 2021-03-10 04:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a057cab6ff3ac809ae350f66174e9a78 SHA-1: a91a9d162069f0f0c04ffa112b839daf2736663f SHA-256: 82e1e1d8eee930401d568c026cb83ec557ef9b8a509314192fc6c9dd08d2b5e3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://lozipotod.ru/wix?keyword=castle+in+the+darkness+guide PDF link annotation
    • https://rijopadanag.weebly.com/uploads/1/3/1/0/131070137/8198045.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/ggKNsjf/2100016664.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378834/normal_603c2c9f8ebc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393208/normal_603775b46b08d.pdfIn PDF document text
    • https://bagirarivevi.weebly.com/uploads/1/3/1/3/131384609/ripetola-gisewofojadam-jubapoz-tinutilufinawad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459165/normal_5fc684a83ae17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496571/normal_60333165b1283.pdfIn PDF document text
    • https://kebiluxo.weebly.com/uploads/1/3/1/4/131455508/300218.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490252/normal_602e448c490bd.pdfIn PDF document text
    • https://pamaridefudeluz.weebly.com/uploads/1/3/0/7/130776324/wetofirep.pdfIn PDF document text
    • https://texodixoxi.weebly.com/uploads/1/3/1/8/131857215/kanolulexapi.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/ii8PjeD/gogatojevowijed.pdfIn PDF document text
    • https://piziwola.weebly.com/uploads/1/3/1/3/131382430/kadulifani.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424692/normal_6045e79de0691.pdfIn PDF document text
    • https://golisarupu.weebly.com/uploads/1/3/5/3/135317681/juxis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465255/normal_602b781ed7371.pdfIn PDF document text
    • https://lupofavegevo.weebly.com/uploads/1/3/5/3/135335207/5588318.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_off0000de89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE89 5056 bytes
SHA-256: 4ead2c6187ed7570b93bfe854917decc03469710c4e7bebfff7795a120204a26
font_01_sfnt_off0000efa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFA9 10756 bytes
SHA-256: 1ed949e8a4c53cc3beb8e9ae88b17b9a5ed4ffd192ca10a856bcd886f6e33d4d