Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba2a764ea3bb930…

MALICIOUS

PDF

96.5 KB Created: 2020-11-25 02:27:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ea1fa5f052939df3d9ef021231a0f2a0 SHA-1: 563386fc9d5f893604a2d3dd77381ce1d1d189f6 SHA-256: 8ba2a764ea3bb9302a4a880b95b1b355d289b306e7764cbab21d26b6929cd838
254 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are identified as redirectors or part of an SEO link farm. The primary malicious URL, 'https://gettraff.ru/123?utm_term=.50+cal+sniper+range', is flagged as a malicious redirector. This indicates the document's purpose is to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gettraff.ru/123?utm_term=.50+cal+sniper+range In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407996/normal_5fa79fe75b313.pdfIn PDF document text
    • https://zajubazo.weebly.com/uploads/1/3/4/4/134452036/kesotik_wedutidi.pdfIn PDF document text
    • https://kedumapeba.weebly.com/uploads/1/3/4/5/134593926/a85a58a9d2094c2.pdfIn PDF document text
    • https://daxulidotuviwo.weebly.com/uploads/1/3/4/5/134597057/geroziteforexezaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/62922327623.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456128/normal_5fbd8bbfeefd4.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/77019428763.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/48139642116.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/yuzuriha_unist_guide.pdfIn PDF document text
    • https://megogolu.weebly.com/uploads/1/3/4/3/134314378/letuvegujafu_rubakap.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/ae3e2744-36ad-4558-ad3e-674a6d0bf696/27318086543.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bddfe350-40a9-41a2-98f9-4b3a92a693bc/kore_dizi_indir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/934a17b6-16e9-4be9-9a85-03f8b134ff56/ganivagefunalozizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1693ba1b-061b-4ccb-be74-086d93bf6283/pafumikanujepepala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88b1ba96-a8f2-4b9d-82d2-13ddc56336c3/nefufeposogerunaj.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
🗂 Part of campaign: shared payload 557eeaef0c 3 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D4E 2920 bytes
SHA-256: 557eeaef0c31ac8a1f7d07c9381a5cbe3f17b29477a769905ef1ddcb1c6286ab
font_01_sfnt_off000137a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137A8 5304 bytes
SHA-256: 4792f9032fecc777e8323aa582805dcc77f9acc1a88ef211dd7097edfe85b7ba
font_02_sfnt_off000149c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149C8 12976 bytes
SHA-256: 8ec97124c7c466b22ca3433c1b83ba7786dbfcbce8124543ea38d54648a35a0d