Malicious PDF — malware analysis report

Static analysis result for SHA-256 962f5ac2d6cb25aa…

MALICIOUS

PDF

28.1 KB Created: 2020-03-20 11:20:32 +00:00 Authoring application: mPDF 5.7 First seen: 2021-06-04
MD5: aa58e3df9c4947e8a2d9d40ef1584b61 SHA-1: be6253c8dab612c204d417702a992ea7d3329bc2 SHA-256: 962f5ac2d6cb25aa20c455e8500ac00474a9e2fb8a2ed3f53976ca8f5a1867ec
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links pointing to a single suspicious domain, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were explicitly extracted, the structure suggests an attempt to drive traffic to malicious or misleading content, potentially for SEO poisoning or to host further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

Heuristics 2

  • 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.
  • 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://ieuicufioao.myhome.cx/5550550551555/The-Forging-of-a-Black-Community-Seattle-s-Central-District-from-1870-Through-the-Civil-Rights-Era-by-Quintard-Taylor.pdf In PDF document text
    • http://ieuicufioao.myhome.cx/5557554555552550/Former-Electoral-Districts-of-Sri-Lanka-Colombo-Central-Electoral-District-Kayts-Electoral-District-Batticaloa-Electoral-District-by-Source-Wikipedia.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/7551559554556559/Bloody-Lowndes-Civil-Rights-and-Black-Power-in-Alabama-s-Black-Belt-by-Hasan-Kwame-Jeffries.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/5550559559553557/Up-South-Civil-Rights-and-Black-Power-in-Philadelphia-by-Matthew-J-Countryman.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/1550554551552559558/Black-Citizenship-and-Authenticity-in-the-Civil-Rights-Movement-by-Randolph-Hohle.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/5551556555556552/Southern-Black-Women-in-the-Modern-Civil-Rights-Movement-by-Bruce-A-Glasrud.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/5550559551554552/Southern-Labor-and-Black-Civil-Rights-Organizing-Memphis-Workers-by-Michael-K-Honey.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/3556558558550553/The-Origins-of-the-Civil-Rights-Movements-Black-Communities-Organizing-for-Change-by-Aldon-D-Morris.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/5557554555551559/Jaffna-District-Jaffna-Electoral-District-Thunnalai-Kayts-Electoral-District-Vaddukoddai-Electoral-District-Kopay-Electoral-District-by-Source-Wikipedia.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/8552558554556559/Civil-War-America-1850-1870-by-Paul-Johnson.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/6556555552551554/Untouchable-Pasts-Religion-Identity-and-Power-Among-a-Central-Indian-Community-1780-1950-by-Saurabh-Dube.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/8550551551559557/Civil-Society-in-Central-and-Eastern-Europe-by-Heiko-Pleines.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/8554551555554559/For-a-Greater-District-of-Columbia-Speeches-of-Hon-Edward-de-V-Morrell-of-Pennsylvania-a-Member-of-the-Committee-on-the-District-of-Columbia-on-Abuses-and-Needed-Reforms-in-the-Government-of-the-District-of-Columbia-in-Reference-to-Street-Extensio-by-Edward-De-Veaux-Morrell.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/1557552558559554/Upbuilding-Black-Durham-Gender-Class-and-Black-Community-Development-in-the-Jim-Crow-South-by-Leslie-Brown.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/4555559556554556/When-Thunder-Comes-Poems-for-Civil-Rights-Leaders-by-J-Patrick-Lewis.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/9553559556554/Delivering-Justice-W-W-Law-and-the-Fight-for-Civil-Rights-by-James-Haskins.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/4550553557554558/In-Search-of-the-Movement-The-Struggle-for-Civil-Rights-Then-and-Now-by-Benjamin-Hedin.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/2555556550555555/Covering-The-Hidden-Assault-on-Our-Civil-Rights-by-Kenji-Yoshino.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/2550550556555554/Covering-The-Hidden-Assault-on-Our-Civil-Rights-by-Kenji-Yoshino.pdfIn PDF document text
    • http://ieuicufioao.myhome.cx/1558555559554558/Human-Tradition-in-the-Civil-Rights-Movement-by-Susan-M-Glisson.pdfIn PDF document text

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