Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6bbc4cf52ff72c…

MALICIOUS

PDF

53.7 KB Created: 2020-08-13 03:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fd9a916e2ec4e48b481141358dc494e SHA-1: 3887cecf7cd7ebfa9928d3551b90647cc503646c SHA-256: ed6bbc4cf52ff72cf8f6b11cb663efe7747459fe4ed33e29d15b303eb9d0a688
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to URLs that are part of a link farm, suggesting a SEO poisoning or phishing campaign. The primary malicious link is https://ttraff.cc/wb?keyword=alesis%20micron%20service%20manual, which likely leads to further malicious content. The file's structure and the presence of numerous external links indicate a delivery mechanism for potentially harmful content.

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.cc/wb?keyword=alesis%20micron%20service%20manual In PDF document text
    • http://damix.908ent.com/uploads/1/3/1/8/131871864/votavewetojuw-xodolameriti-barewef.pdfIn PDF document text
    • http://fixenul.kurskeducation.org/uploads/1/3/1/4/131438641/xoxenaweridopixov.pdfIn PDF document text
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdfIn PDF document text
    • http://files.greysriversports.com/uploads/1/3/1/4/131452733/3888462.pdfIn PDF document text
    • http://files.envirolutionsconsulting.com/uploads/1/3/1/3/131379820/weriz.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/1/0433/9639/9265/files/16675549461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/vomuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1543/0553/files/nebebarujupagujunigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/zudagomokudarise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/8160016523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8516/0857/files/51602271053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/devuxilizafud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4346/1032/files/bokezabogafotumiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/3150/5565/files/1079087194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/gebomavigoxatesiruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/i_wasn_t_expecting_that_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9155/8551/files/74494157633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/99296532146.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_off00009633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9633 4992 bytes
SHA-256: 6abe3f2c114b50841536960062af7752ad7b22c73c62025a4afa8dfa0d22c4d4
font_01_sfnt_off0000a70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA70E 10140 bytes
SHA-256: b9e6972998da730581e5bc43edf94535c90b7e3567bc5ef43d37634507ab4bb9