Malicious PDF — malware analysis report

Static analysis result for SHA-256 5079614decc68957…

MALICIOUS

PDF

44.3 KB Created: 2020-11-01 09:24:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9596ff4760126ffd72ec20426ec8589a SHA-1: 2705e152ab4fe2a03d2b27942e764175631f8201 SHA-256: 5079614decc689575af987f24dc1a244dd9b2fbc2251483c1721131e460634d1
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, 'https://ggtraff.ru/strik?keyword=engine+manual+for+troy+bilt+lawn+mower', is presented in a way that suggests it is a document download, likely to trick the user into clicking it. No scripts were extracted, but the presence of malicious links and the ML classification strongly indicate a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ggtraff.ru/strik?keyword=engine+manual+for+troy+bilt+lawn+mower In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_5f9ba75aad62b.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/6a802eed2366b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416143/normal_5f991b7320dea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390999/normal_5f939e7bbb222.pdfIn PDF document text
    • https://zigegawemofeza.weebly.com/uploads/1/3/1/4/131406932/38442.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
    • https://uploads.strikinglycdn.com/files/295a312a-851d-40fb-ad57-90f1132839e7/41604985654.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47e07cfb-640c-4703-81c7-f7026bf85a0a/33049845785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8163/7794/files/33200267932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba10612-12a6-4bdd-a489-ddf45463d900/37151362555.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/404a31cf-1a7c-4562-98e7-4312ba07fd0c/zaxuditoginefoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8292/2181/files/lg_lds5540st_manual.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 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6170 5084 bytes
SHA-256: 374762a7f2b42b567c846d7c9b135e5782bbd1774af2294d8d29ff7c46f4e698
font_01_sfnt_off000072bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72BF 10476 bytes
SHA-256: 3d459cc9999a025a183960b7217731e11daa273639abe27419d49ceee961fd4d
font_02_sfnt_off00009669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9669 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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