Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9138ee2e6b5ba38…

MALICIOUS

PDF

50.8 KB Created: 2020-07-29 07:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76005b572bc92a5dd1ad591e1a5294ae SHA-1: 8ab8e17e800b2c47239b4c98e82b8c2b591fdfe4 SHA-256: e9138ee2e6b5ba384585d6b5763d6fb1490a32ae036a649460f92f9559fbf17f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.ru/pify?keyword=grotesque+guardians+guide+osrs', is flagged as a 'PDF_MALICIOUS_REDIRECTOR_LINK'. The document body, though heavily obfuscated, contains text related to 'Grotesque guardians guide osrs', suggesting a lure to attract users interested in this topic. The combination of link farming and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.ru/pify?keyword=grotesque+guardians+guide+osrs In PDF document text
    • http://files.veglier.com/uploads/1/3/2/6/132683001/jasaxurarefigos_tirabalovu_nexokinuxes_zikili.pdfIn PDF document text
    • http://files.bsbrew.net/uploads/1/3/2/7/132740618/zakate.pdfIn PDF document text
    • http://files.lotusloveonline.com/uploads/1/3/1/4/131438079/d1f7d6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/rakuvotojoxazasero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/vakobamisadofusivej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0975/3767/files/71006668622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/pibototukugusamiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/67728225141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2127/9138/files/18565278895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/30302791156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/13068506459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8105/6935/files/xoxosatorowigenabaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6589/2245/files/livavasizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/6534560684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5676577217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/fejekikaxudanazexobege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3722/1276/files/badunakurimiveje.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8952 5000 bytes
SHA-256: 30cd59f262939778d5d5ee70ab89e4ddc5a27349013c58d73ee15a59e27505ed
font_01_sfnt_off00009a5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A5B 10552 bytes
SHA-256: b255137a17429c1dabfcd977f007ade798c5f0a21729a49f70b6818539bdf96f

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