Malicious PDF — malware analysis report

Static analysis result for SHA-256 38cf05db4410ea23…

MALICIOUS

PDF

53.2 KB Created: 2020-07-30 18:38:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e8fb5b013495425839453c1008dd820c SHA-1: 6b3d554084bc105d303ffdb490931c156a091d56 SHA-256: 38cf05db4410ea23acb0eae3fcf35aeb16e5c75b6c888f76bd82c107bfc4e62f
274 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to downloading PDF applications and mentions remote support tools, aligning with heuristics for password-protected archive lures and remote support tool lures. The presence of numerous links, including a link farm on Shopify, suggests an attempt to manipulate search engine results or distribute content broadly. The primary malicious URL is ttraff.com, which is used to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.com/pify?keyword=baixar+app+pdf+para+pc In PDF document text
    • http://files.professionalcapitalpartners.com/uploads/1/3/1/4/131438766/4121815.pdfIn PDF document text
    • http://files.guafoislandscience.com/uploads/1/3/0/7/130739239/tenanosa_labarufat.pdfIn PDF document text
    • http://files.freestylewordplay.com/uploads/1/3/2/6/132681477/1374987.pdfIn PDF document text
    • http://files.mrricksable.com/uploads/1/3/1/4/131453048/08601c289026a37.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/1/0428/9835/8432/files/61066914906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67572949107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/87437881591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4098/files/69196808089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7367/4142/files/7082740397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/panalulojasufomoxupadeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/razikeruranofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/52960369334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/41461555925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/26860194383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9050/9973/files/12926943070.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 8

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_off00009614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9614 4428 bytes
SHA-256: 0e9975b5374b3f77b1252f357a60df036d63369828db9598c6c6fff41d7c8c6a
font_01_sfnt_off0000a52a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA52A 10028 bytes
SHA-256: c80740394eee6fa96cdacec25a1f662c000c5dfbeb86d85b91defc02bafa131e

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