Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cc508b09570274c…

MALICIOUS

PDF

40.4 KB Created: 2020-08-22 12:02:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9829804547d034aee6fa21d97d6aaa12 SHA-1: 0d0b5285e75d36dc7981d88d21b836de83f057f6 SHA-256: 8cc508b09570274cd9c1ebcb159874230133355a58d8fef50a3e120df925780c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to a 'Chugoku electric power company annual report'. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure.

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=chugoku+electric+power+company+annual+report In PDF document text
    • http://galeza.powerofmath.net/uploads/1/3/1/3/131379478/2050617.pdfIn PDF document text
    • http://files.kateyz.com/uploads/1/3/1/4/131406348/7081479.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/1/0430/9529/4105/files/turkey_scholarship_interview_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/lenaposabeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4946/6526/files/uninstall_game_bar_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/41935389367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3645/8654/files/fuvavav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/rarokeviwibipofuduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7486/3772/files/atomic_orbital_hybridization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/bow_making_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1021/2519/files/fageberowikegelube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5821/4565/files/53622559003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sarozasupevukofapunaxovu.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 7

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_off000050ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50EE 3548 bytes
SHA-256: facb58a8cb50eb358acfe16a01a1c581fa3c9f83ef53a07db7990ecf0f14db19
font_01_sfnt_off00005d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D85 5332 bytes
SHA-256: 803da875940eca01f19fb68fc79bd4f423e9ba258b1130d6c3e58ada47fe53c2
font_02_sfnt_off00006f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9A 10628 bytes
SHA-256: b71cc464e94e2fdac1c99a40605c752eb6ba8b857d675915c133ce3acb93805f

Open this report in the interactive analyzer, or submit your own file for analysis.