Malicious PDF — malware analysis report

Static analysis result for SHA-256 614bd624b48ea66d…

MALICIOUS

PDF

72.0 KB Created: 2020-07-28 19:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a43ffde8d40251c2b4eb1fe5dee2b135 SHA-1: 9f5de89a74a6c6d587c1f47515d50f942b21b6f4 SHA-256: 614bd624b48ea66d55e02290f02e1a207ed58a101dcdbf42105c496e5adfe633
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=abstract+example+for+technical+report`, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to a technical report. The presence of multiple PDF links and the ML classifier's high confidence indicate a malicious intent to redirect users to 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/pify?keyword=abstract+example+for+technical+report In PDF document text
    • http://files.strategictalentadvisors.com/uploads/1/3/1/4/131437017/zapokusamidijafubeke.pdfIn PDF document text
    • http://files.strongteams.net/uploads/1/3/0/7/130739444/2585744.pdfIn PDF document text
    • http://files.stylebysmo.com/uploads/1/3/1/8/131872021/659f60a.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/1/0428/2561/3468/files/rixozetezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/76794839174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8981/3909/files/14539800426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/tukisajuxoxufowodipoduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/jokekelewefoparudutuxorim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/vaxexemuputelokilebogege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4590/3781/files/41945192597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/wenonopigeludulawasawuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1221/1359/files/68540756211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0840/files/rofupek.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
🗂 Part of campaign: 3sistersgrace.com 3 samples

Related samples 2

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_off0000db9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9C 5240 bytes
SHA-256: e4ab9567614cd33f838bff16bedb2dd052d54a18feb5f005b1ea874f6d8bce7e
font_01_sfnt_off0000ed38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED38 11012 bytes
SHA-256: e663fe0ceca2feb686bef8f9798f9259a1a179e51569f8468468f3d83a95db5e

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