Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d136650d26130c…

MALICIOUS

PDF

45.7 KB Created: 2020-07-27 12:28:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd705da90d1f5c831dfa8ffe00bc998f SHA-1: a1614779861581197385f936e3028200da6d1d5f SHA-256: 60d136650d26130c8e64032af74e40b2c1dc7a2ce1a7ec1660b0565c1c334bdc
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'joint commission survey activity guide'. The presence of a link farm and a malicious redirector indicates an attempt to lead users to malicious content, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=joint+commission+survey+activity+guide+july+2019 In PDF document text
    • http://files.coachdavidhenley.com/uploads/1/3/2/3/132303150/7319031.pdfIn PDF document text
    • http://files.stemacademyband.com/uploads/1/3/1/4/131454345/kurub_jesulademeseza.pdfIn PDF document text
    • http://files.parishofhoylandsaintandrew.com/uploads/1/3/1/4/131438741/xivajesenam_kizagowo_poniwonaluwiw.pdfIn PDF document text
    • http://files.dsilvadesigns.com/uploads/1/3/0/8/130815311/9e52a6847d120.pdfIn PDF document text
    • http://files.dobbelduo.com/uploads/1/3/1/4/131407029/7a91a485e1.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/1/0430/2998/7489/files/79300323834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2462/9411/files/dositojewugiborozob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2552/3103/files/doponapitunaparudolizidas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/78446223794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3024/files/vekimexosam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/92601311472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/dunijazoxakuzibodexafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/kegesenavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/33069299803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/560086436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2635/7152/files/pamiginefiguvuguxojin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3861/3399/files/76767579529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1848/5923/files/10965020849.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_off00007252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7252 5852 bytes
SHA-256: 4701249759954f68acca31c9f2ff28cdd17c61ece5c99d4a09a707556ebc2f38
font_01_sfnt_off00008632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8632 10364 bytes
SHA-256: ee38ee0acffa5a647c5b1c198c69287197a0513043bd18f9ddf554863d3736d3