Malicious PDF — malware analysis report

Static analysis result for SHA-256 4897c0091f775afc…

MALICIOUS

PDF

46.4 KB Created: 2020-08-14 21:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5df5509700a86d3fd0e54420a6222fdd SHA-1: ded87de003afa06479d561d1587f50c52a0eb6b1 SHA-256: 4897c0091f775afca1ea1181135f020b4aaf6d3191b3d4e5f926788ed09ae822
162 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=free+movies++in+tamil+2018'. The document body also contains this URL and a large number of other PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is used to redirect users, likely to a phishing or malware distribution site.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=free+movies++in+tamil+2018 In PDF document text
    • http://files.safetyguystraining.com/uploads/1/3/0/7/130776183/bavupaxupij_nikelaxedug_laxiwax.pdfIn PDF document text
    • http://files.counsellingpsychologist.services/uploads/1/3/0/9/130969555/7582248.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/1/0433/6238/6074/files/danapitibojozonirinukeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/putop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8570/9987/files/19344757708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2951/0814/files/13948141874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6726/8517/files/pevumapan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7741/files/escala_de_alvarado_modificado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/sienna_guillory_resident_evil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/mavujuwaxek.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000602c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602C 5156 bytes
SHA-256: 104e267d9c073052922194492a3cf4db7a16037d29581746904e945f83c384fc
font_01_sfnt_off0000718c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718C 1936 bytes
SHA-256: 7420db9ec41012b263dff8e0d039d2a895961a6b4c1647eabbcd20f441fad98a
font_02_sfnt_off00007ad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD3 10468 bytes
SHA-256: 03b9c5140ce6d1131bf04ad86cbc9d18363966db51d470540193e94148220f14
font_03_sfnt_off00009ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EA5 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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