Malicious PDF — malware analysis report

Static analysis result for SHA-256 93557664636da053…

MALICIOUS

PDF

47.5 KB Created: 2020-09-14 19:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02a221c51de146533964e441f8d5a2a8 SHA-1: c7b8f9d9ffcfe63b458af21ad3047f1c5b74b159 SHA-256: 93557664636da053920ce5516dfcbe85b851e212a0f9d58f5b7ef9eb8cd7725a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including a critical redirector link to 'ttraff.cc' and a link farm hosted on 'sofogez.tlccasolafarms.com'. These heuristics, combined with the ML classifier's high confidence, indicate a malicious document designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains the lure text "Clash of clans tips th9" and the malicious URLs, 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/wb?keyword=clash%20of%20clans%20tips%20th9 In PDF document text
    • http://sofogez.tlccasolafarms.com/uploads/1/3/1/3/131379730/8438514.pdfIn PDF document text
    • http://jugefin.achch.org/uploads/1/3/2/7/132712615/gitisedixanu.pdfIn PDF document text
    • http://vowub.moorewrestling.org/uploads/1/3/1/1/131164456/138dfcfbb.pdfIn PDF document text
    • http://files.our-perspective.com/uploads/1/3/1/4/131453429/a15b8c.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://static.usrfiles.com/ugd/edb4a7_7609c960b21e4a2db6582032f3990975.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/278743_4c4a19d193104312a6894779a4e5ed96.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/930050_c123d7662b0446f19cd44952bf4f08de.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/a44510_b0b6462d0561412fbffac60b0ba1c52d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/46429b_7b9ba9dd11cc429f900c4c64dd5ae61a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cc15ef_cdcdb9b99a2542bb922553b68dca28cc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ffe0d3_b9606ae39428434d994f0fc348c8a003.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4bb894_faeea817a6014a9e86750b696b7d6b0f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/361f4b_4bfda6f8c558465d9dfb97f584fa379f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8da65f_16d5914e011847049f4fbbd3f4354020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F56 4856 bytes
SHA-256: 090826ef06eab23c6515c474a2a5eb46544463761f3510b36712e397ee7fc3c7
font_01_sfnt_off00007fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC9 10324 bytes
SHA-256: 13942ff80bae6871fe5c243ad8fd9c2c68ccfe1427027e03b4c9bc61839bb24f
font_02_sfnt_off0000a315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA315 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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