Malicious PDF — malware analysis report

Static analysis result for SHA-256 38fc12a95c7327a3…

MALICIOUS

PDF

44.0 KB Created: 2020-08-04 00:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4266b3cc2c79338bae73010ee547c57b SHA-1: 5b4f6fb09bcbf3fbc08518c81e345164711cac67 SHA-256: 38fc12a95c7327a399e04032c085847dcc7d7b08dae1953355e4c0d7a5aaf645
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as a job interview guide. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files, many hosted on Shopify. The primary malicious URL is designed to redirect the user 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.ru/pify?keyword=job+interview+conversation+between+interviewer+and+interviewee+pdf In PDF document text
    • http://files.enzehan.com/uploads/1/3/0/7/130738553/7242537.pdfIn PDF document text
    • http://files.spartanleadershipgroup.com/uploads/1/3/1/6/131607029/9594697.pdfIn PDF document text
    • http://memexixa.mypeakperformance.net/uploads/1/3/2/8/132814476/piwodepinavejiw.pdfIn PDF document text
    • http://files.brookehancockdesigns.com/uploads/1/3/1/4/131453588/wofudake_jojuzolevaj_mulel_gavuga.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/1/0433/0687/7080/files/safuginogatujato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/36031615303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5732/3925/files/79600873464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/bupijuguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/veragixoxalanegenijagive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3550/7358/files/24637472987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7831/1326/files/72723541707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/ribimugidukanevodeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1263/6322/files/kagegoberafezurinilus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/16414209676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8181/0598/files/4002474809.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA7 5400 bytes
SHA-256: 2d7d85fef1067c18798a552eb3b1624e0e9abd0f6c7e80c0c06b1cdd60a29a04
font_01_sfnt_off00008021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8021 9900 bytes
SHA-256: 2cfcfd619b55108b028cf0d5f7cfd3ce6db42762d6a6e899c44de5717caa2a32

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