Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e376d75d1d9f3e…

MALICIOUS

PDF

44.9 KB Created: 2020-08-08 09:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3309679e1819fe3a1ec2de8bb5c6e7ec SHA-1: 4537ebe93fe67a918dd72b8330ae34aff7e98cc0 SHA-256: 14e376d75d1d9f3ee87e138da7e59ef2776218103ccb747d5cc06d7f845a3e3a
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.com', suggesting a phishing or scam attempt. The document body and heuristics indicate a lure for 'advanced accounting concepts' presented as a free download, which is a common tactic for SEO link farms and phishing. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest malicious intent, likely leading to further compromise.

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) or Microsoft license-boilerplate 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.com/pify?keyword=advanced+accounting+concepts+pdf In PDF document text
    • http://files.leilatualla.com/uploads/1/3/1/4/131437513/fe1991f746.pdfIn PDF document text
    • http://files.caribbeanpsyarts.com/uploads/1/3/1/4/131437987/0c470a891690c1.pdfIn PDF document text
    • http://files.agorapodcasts.com/uploads/1/3/1/8/131872087/wizutotafadit.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/1/0434/5180/9942/files/torawiwubibiboramat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3755/5864/files/how_to_convert_odt_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2817/5255/files/43261153961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3716/2646/files/mepegupufenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7599/files/63527394158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/60882619662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4406/0839/files/joint_venture_accounting_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1479/1068/files/15620147265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0618/8955/files/10534272636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96704933611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/javascript_fetch_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2858/4347/files/82442735802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4599/4146/files/85490447420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/26820998716.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_off00006700.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6700 5124 bytes
SHA-256: 3d9a3424df478546dc4068d0e985da83724db437dddac2c4f2085f32a20d8103
font_01_sfnt_off0000788a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788A 9320 bytes
SHA-256: e1db32f512748cb6eedd56dce0286cb2ac3761962d4e2686f99834e900064e22
font_02_sfnt_off00009873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9873 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f