Malicious PDF — malware analysis report

Static analysis result for SHA-256 860e7044628e72f6…

MALICIOUS

PDF

40.5 KB Created: 2020-10-25 12:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f4ac100e062b33376ff80391e3f068e1 SHA-1: 775a1de8a3e295033018e8943a45d877935e32b5 SHA-256: 860e7044628e72f6762bc06971df89be2c4cacaae9068bf1af9e8d5da6ca8cb6
124 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is a "Dodge durango 2020 owners manual", likely a lure to encourage users to click the malicious links. The heuristic firings confirm the presence of malicious redirector links and classify the PDF as a link farm on disposable hosting, indicating a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://ttraff.com/123?keyword=dodge+durango+2020+owners+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_5f9062ff8822f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f8f61e701d4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413474/normal_5f9543b144688.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379960/normal_5f8d87e87b8a8.pdfIn PDF document text
    • https://galebekamabe.weebly.com/uploads/1/3/4/3/134305591/7618918.pdfIn PDF document text
    • https://pepuzategazeg.weebly.com/uploads/1/3/1/4/131453576/5535584.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378405/normal_5f8ce2814aad6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370987/normal_5f8c540aebe29.pdfIn PDF document text
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/1278772.pdfIn PDF document text
    • https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/951229750.pdfIn PDF document text
    • https://pinonomobeberex.weebly.com/uploads/1/3/4/3/134318871/nipumegog.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/pajulo.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/jububumuporunasuteresof.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/87272749083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8746/9986/files/67012492276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9699/7030/files/41767266741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/napkin_rings_ebay_australia.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_off00005d13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D13 5512 bytes
SHA-256: 1c07bf93ba1bb765bc9749a82e9702662f8847d5d5f85d343906da83da353848
font_01_sfnt_off00006fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCC 11312 bytes
SHA-256: 0b0363694bd60f13381ab20f3a20f611223576dc5ae65879a3d39041b70a598f

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