Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a68507ca879b9fe…

MALICIOUS

PDF

40.0 KB Created: 2020-08-17 01:30:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13b165299cd6ec2e60b627f954ff822e SHA-1: 776b5f87bd1f7f6aab2d77ae8b10615307d406b7 SHA-256: 5a68507ca879b9fe138138966f450beedd595b0319263d1cc932704d6d5f33b2
210 Risk Score

Malware Insights

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

This PDF file contains multiple heuristics indicating malicious intent, including links to known malicious redirector infrastructure and a large number of SEO-optimized PDF links. The document body also contains a URL that redirects to a malicious domain, likely intended to download a second-stage payload. The presence of a 'download button' lure and a 'password-protected archive' lure further supports the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=gmail++all+emails+with+attachments In PDF document text
    • http://files.danamsd.com/uploads/1/3/2/6/132695493/24e7ff960e.pdfIn PDF document text
    • http://files.kiwikainz.com/uploads/1/3/1/3/131398279/2592852.pdfIn PDF document text
    • http://files.alexmunroewrites.com/uploads/1/3/1/3/131384173/fovun_jixototedu_pojutebuvatevu_vibul.pdfIn PDF document text
    • http://peworav.eleosbooks.shop/uploads/1/3/1/3/131384166/raxujezizevavebu.pdfIn PDF document text
    • http://pufowaxu.meowhousecatrescue.com/uploads/1/3/1/3/131384635/zoliboxiw-daniver-fixugazegepu-pisaro.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/1/0440/5755/9190/files/88193994795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/32778202757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1485/6610/files/84236189611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1954/2434/files/jaxafowuduledurosumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/fivovitumij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/kojixoluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2862/7099/files/fugupiwufurirakesajaxewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3184/6296/files/semonida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/metal_logo_quiz_answers_level_34.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 6

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_off00005e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E27 5064 bytes
SHA-256: 99550d95f15cdd15a4ed40c8fc988da1082776691489888dd42a5e940df37260
font_01_sfnt_off00006f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F50 10592 bytes
SHA-256: 7c6fd17303a9792ba06a4446c6812941a6b77935fb5429875dd69647cb36b9a6

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