Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0cb5c62d75b0711…

MALICIOUS

PDF

70.8 KB Created: 2020-08-06 18:18:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a65a7cdc48fab497a445bb1436757767 SHA-1: a64c703e01882f063e92c54549e9b4ee55495352 SHA-256: e0cb5c62d75b0711b6732b608c82b69d638f8383aaad3704358cc51af7b59c3d
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=credit+risk+management+pdf+free+download', which is likely intended to lure users into downloading further malicious content. The PDF also hosts a large number of external links, suggesting a link farm for SEO manipulation, as flagged by PDF_SEO_LINK_FARM.

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=credit+risk+management+pdf+free+download In PDF document text
    • http://files.blueribbonhomeimprovementinc.com/uploads/1/3/0/7/130776298/pofumuroba.pdfIn PDF document text
    • http://files.briankerr3d.com/uploads/1/3/1/3/131381452/zezoforunixov.pdfIn PDF document text
    • http://files.kalbproject.com/uploads/1/3/1/8/131871390/vuzexevonovigam.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/1/0430/6403/3429/files/keduvagisoxem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8428/3033/files/92601123105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8683/0998/files/50443410667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/xodag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/nunox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/xbox_360_save_editor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/29333578333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8573/files/88219191183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5085/files/unir_archivos_online_sin_limite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/vebabexumiromexubarokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/24936860345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/tuwivelavakok.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_off0000c9c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C0 5328 bytes
SHA-256: 57b36ea03135a4a81f6ce9e1d61945d7efb42fc966c9bd2dae336ba3580cc8fb
font_01_sfnt_off0000dbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE1 10500 bytes
SHA-256: e27c59b65d24a45d181c3d09c0747aab60f3f28cc39a9a0fd6d619cae09ddfd8
font_02_sfnt_off0000ffd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD4 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3