Malicious PDF — malware analysis report

Static analysis result for SHA-256 44d59901d6ae027c…

MALICIOUS

PDF

38.4 KB Created: 2020-08-05 03:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f8f049084f60d3324740f53953ee6aa1 SHA-1: 50a3cfe4edac395d4dfaff69b7a9b3077d900cc5 SHA-256: 44d59901d6ae027c4aade2e09be3597b945e8679e6aacbeafff66466fb37e5e3
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious link, https://ttraff.ru/wb?keyword=service%20manual%20honda%20jazz%202007, is identified as a redirector to known malicious infrastructure. The document body, though heavily obfuscated, appears to contain keywords related to a service manual, likely serving as a lure.

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/wb?keyword=service%20manual%20honda%20jazz%202007 In PDF document text
    • http://files.brianinthewild.com/uploads/1/3/1/4/131407802/4eccf5304dd.pdfIn PDF document text
    • http://zumodamog.servicetrackandfield.com/uploads/1/3/1/3/131381464/9548036.pdfIn PDF document text
    • http://files.themrjband.com/uploads/1/3/1/3/131380308/1077062.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/1/0429/2814/4543/files/44824464181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/ninoxabizijoxuzorumerus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9181/1734/files/vusupadif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/kitchen_trolley_designs_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2215/5930/files/wupejomobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kekesapenogetiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/3890155797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0403/5221/files/ginitexiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/90043544959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/xowunuveguxejazebez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3866/2053/files/rerofijugaduvumon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.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_off00004e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E83 5644 bytes
SHA-256: 052f56c1c18f6e8b37ccfc4a658e8ad7b037b0102b858447fab7fdccac4cf233
font_01_sfnt_off0000619e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619E 14044 bytes
SHA-256: c5f70bda6a84d98c1d6d3421004bc3f61521fcb3606b71ac49927a759b6e955d

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