Malicious PDF — malware analysis report

Static analysis result for SHA-256 d33bc1d52cc9a1e3…

MALICIOUS

PDF

61.8 KB Authoring application: Soda PDF First seen: 2020-09-24
MD5: 22a6bacb1f18ee77f32098ef10a1f3de SHA-1: 7c5bb404def655fccf7fd062a290bc64bb78c075 SHA-256: d33bc1d52cc9a1e3ee36744731e1120a3270ace2bd7d991dd82058be6e805796
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to distribute malicious content. The heuristic 'SE_CALLBACK_LURE' suggests a callback phishing or tech-support scam context, indicating the links likely lead to further stages of a phishing campaign. No scripts were extracted, but the presence of numerous external links points to a delivery mechanism for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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 http://mrshoganschoolcounselor.com/uploads/1/3/0/5/130543019/zuvipibura-kefevisom.pdf In PDF document text
    • http://benkiashaninka.com/uploads/1/3/0/2/130287279/bixuramiwuwet_janutejugapewe_wajezeluma_garekuvuxudufig.pdfIn PDF document text
    • http://propertysitters.ca/uploads/1/3/0/5/130539825/6640509.pdfIn PDF document text
    • http://girisasipe.sayt-nedorogo.ru/uploads/2020/01/28/bugotojexagitid_gokavoxixeka.pdfIn PDF document text
    • http://notoriginal.shop/uploads/1/3/0/5/130551749/mijevawivuf.pdfIn PDF document text
    • http://materialsdesign.net/uploads/1/3/0/6/130621865/2557401.pdfIn PDF document text
    • http://suncom.us/uploads/1/3/0/5/130544734/ravekeruki.pdfIn PDF document text
    • http://stan.holyrood-drama.com/uploads/1/3/0/4/130435791/ca02e7edf19.pdfIn PDF document text
    • http://audio4n6.com/uploads/1/3/0/3/130379110/a9d71bb26b22.pdfIn PDF document text
    • http://gaso.storyzonline.ru/uploads/2020/01/28/zuduvuvewodime.pdfIn PDF document text
    • http://mikeintucson.com/uploads/1/3/0/5/130588497/130588497.html#2010+toyota+prius+ivIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off000012f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F9 9744 bytes
SHA-256: 4960da261d50ba7ebc0508c8d14bee58a649b7894c1d771c8ea9be1f98a74463
font_01_sfnt_off0000aaaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAAF 16808 bytes
SHA-256: 51a648f23b414f7bf5c29b5a8bf19998db2433e9774362147a13af508a4879ec

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