Malicious PDF — malware analysis report

Static analysis result for SHA-256 4729e8af676c102e…

MALICIOUS

PDF

44.0 KB Created: 2020-08-04 10:31:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86271efc9d7cb258ab91e15159d17945 SHA-1: 2a1f77a1f9cae83908544e7cb95a7d2a5f2ceb5a SHA-256: 4729e8af676c102e0b62d998db66bee0d652d834c07b80471975a4068b4ae620
214 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. The presence of a callback phishing lure suggests a social engineering attempt to trick the user into contacting a fraudulent support line. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/pify?keyword=brocade+m6505+pdf In PDF document text
    • http://files.julindassalon.com/uploads/1/3/0/9/130969172/nutuwupuwoga_molumof.pdfIn PDF document text
    • http://files.thedinopark.com/uploads/1/3/1/3/131383771/mitiwazerujuza.pdfIn PDF document text
    • http://files.clothes4largedogs.com/uploads/1/3/0/7/130738748/a4db71.pdfIn PDF document text
    • http://files.brittalinnanderson.com/uploads/1/3/0/9/130969801/2382057.pdfIn PDF document text
    • http://vekazam.dancedynamicsjohnstown.com/uploads/1/3/1/3/131381428/8fda7babf01.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5316/2394/files/jupoxokewewubojonuwijat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/soxiraxijuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/91140315205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/26412247298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5385/8472/files/58224453095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4173/4301/files/xalis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3630/2750/files/derinabonetulanofevaxipup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1465/8980/files/31965007944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/bhaskaracharya_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0024/2077/files/gelep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4256/9383/files/36811628847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/house_of_night_betrayed_free_download.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C01 5112 bytes
SHA-256: 6264f515432f4ea30f084042772fe1c2baabde33b6d2c868358ea9bbb6d66b87
font_01_sfnt_off00006d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D56 12284 bytes
SHA-256: 5ec26b538785de034761142e5144c9bae0f057229a2bfda0662ad0b43c93b501
font_02_sfnt_off0000954b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x954B 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3