Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e7fe375714d4878…

MALICIOUS

PDF

74.6 KB Created: 2020-12-27 21:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c996a9b9630485243ed114c59b03d1fa SHA-1: beb95ec255e1852851bdeaffd0546292546a86ff SHA-256: 7e7fe375714d48787e2f416f6c82664218abb781670ada8742481569be14fe13
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious URL, 'https://traffnew.ru/strik?utm_term=likee+logo+pic', is likely used for phishing or to redirect to further malicious content. ClamAV also detected this file as 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0', reinforcing the phishing and malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://traffnew.ru/strik?utm_term=likee+logo+pic PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391024/normal_5f9803a4e550d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461761/normal_5fd1bae03ff30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472182/normal_5fe2dbcfeb64e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445555/normal_5fb9fdbc65f0d.pdfIn PDF document text
    • https://xamezorunag.weebly.com/uploads/1/3/1/6/131606231/555b4b46d11dcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473044/normal_5fb91faf97227.pdfIn PDF document text
    • https://cdn.sqhk.co/bogebumemilo/hfhfhiX/difepaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417213/normal_5fb4dba801c32.pdfIn PDF document text
    • https://cdn.sqhk.co/rurokusulos/2jthdqS/kaxutanekixikiko.pdfIn PDF document text
    • https://zolezuborejizo.weebly.com/uploads/1/3/4/4/134444688/43c04ad8a2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366652/normal_5f8726537780a.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/17cbb406-99fe-4bb9-9dba-d942f6ce4528/convertxtodvd_4_free_download_with_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e543a20d-38f7-4e81-befd-304879642b4e/hail_storm_dallas_tx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad33b13c-067b-4a87-b4be-5979ff257de0/56781396209.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/nts_qari_answer_key_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/dirt_biking_shows.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96b0d71a-0026-4e6b-8b2a-fd1c7323bc0b/glencoe_health_chapter_25_review_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1d5e44e-36d6-48dd-aa10-e1d9903d5f28/gujesubaxujozaradirisabo.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA17 4620 bytes
SHA-256: 3925cb6b80dc5331b609a5f11a003a90a8e78dbe7c235dabaf0ee954a0effb6d
font_01_sfnt_off0000f9fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FA 10368 bytes
SHA-256: ad6c10869281f4717bcc85ab92adea810abe39669d7b65e33f0c50c1f68db5ac

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