Malicious PDF — malware analysis report

Static analysis result for SHA-256 e167c2ab327c2213…

MALICIOUS

PDF

40.1 KB Created: 2020-08-15 14:39:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e489a8f508052f141ad946b06f43df0 SHA-1: c98df8f33af5c8e99b12aa7359790553f19d1522 SHA-256: e167c2ab327c221378150bb6a12fd1fc98452d425d9092c1005dcaf55dcf071c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc', which is used in a lure related to a 'Kawai piano app android'. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, with the primary one also leading to a Shopify domain. The document body, though heavily obfuscated, contains the 'Kawai piano app android' string and the malicious URL, reinforcing the phishing pretext.

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=kawai+piano+app+android In PDF document text
    • http://files.weavefutures.com/uploads/1/3/0/9/130969614/kaserumubilolavotaj.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/1/0431/7482/2044/files/franchising_vs_own_business_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/tixetuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0544/2209/files/78622561476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8121/1810/files/fubitifafipusojow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9488/files/how_to_make_artboard_transparent_in_illustrator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0648/3876/files/system_analysis_and_design_notes_for_mba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/modelo_canvas_ejemplo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6345/8457/files/ipc_a_610g_acceptability_of_electronic_assemblies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5092/4182/files/87631551128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/bufaxumij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3645/0717/files/cours_vba_excel_2020_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/busesesurezuzaxok.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 3

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_off00006075.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6075 4804 bytes
SHA-256: 6ea3fd7e9db951d15240623a01d88fe086a5ecd5c381b31bb8a1211b67222bd7
font_01_sfnt_off000070ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EC 10128 bytes
SHA-256: 8417155ecb5f0a7e4ea8394648f4a04f968af0a460837f68d0a0e7de5aef0336

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