Malicious PDF — malware analysis report

Static analysis result for SHA-256 50db09f892c9115a…

MALICIOUS

PDF

68.4 KB Created: 2021-03-08 01:07:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fe7bbfa99119c8278f52e078cf4a451c SHA-1: 292ef3995c5816c19ad9b9714f85a74a8037fd2d SHA-256: 50db09f892c9115a821d710feae9af7cb4baecb76d839dc97183fd10ab5234f9
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://dafemum.ru/wix?keyword=dometic+gc6aa-10e+manual In PDF document text
    • https://static.s123-cdn-static.com/uploads/4460060/normal_5ffcce7797254.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500187/normal_5fffb2b4dfef8.pdfIn PDF document text
    • https://tilemutafadat.weebly.com/uploads/1/3/1/8/131856023/dumasaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413016/normal_5fcb6999e6824.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452845/normal_5fd3586aa37b1.pdfIn PDF document text
    • https://jawifeguviweti.weebly.com/uploads/1/3/2/3/132302916/6206566.pdfIn PDF document text
    • https://magirakikepemun.weebly.com/uploads/1/3/4/0/134000039/silewakirow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490724/normal_6005d0f687e96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485149/normal_60369e9a7434c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368500/normal_600fa23cf33a3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e34ee44-e215-4229-ab9a-2b7feafa2f6a/61806361226.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/javascript_uc_browser_android.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/fone_bluetooth_lg_hbs_800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/868e14bc-8f9c-402d-ac40-efad7ac26649/67126501105.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0c5de65-c832-441c-b0e4-04945e91799e/warlock_5e_guide_spells.pdfIn PDF document text
    • https://34570882-574e-4d25-8c0e-d8b9b6c2967f.filesusr.com/ugd/cb2bed_2f3823e4bfad476f80c2b695634f26b9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/golepe/barsaat_movie_songs_free.pdfIn PDF document text
    • https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_1183f7855bcb493c98c8ca750c5a9909.pdf?index=trueIn PDF document text
    • https://ec8c99fd-5413-4e38-b6a0-2ccbba71fc6f.filesusr.com/ugd/de02f3_d35b5f2d1f484ed5b414601f24d9645e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/gitez.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/tefaxoxetosizisifefavewo.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_off0000cf19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF19 5224 bytes
SHA-256: 1faf5e511106c351c898dbfddf7ed27e2e3b5f35ee65792963bfacb91a02e020
font_01_sfnt_off0000e0e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E2 10400 bytes
SHA-256: 1a34f21260cc8e6d40ccff54fe84be410c38bf5b037cf30c2a41e6db95f86bdb