Malicious PDF — malware analysis report

Static analysis result for SHA-256 e07d8300824cceb8…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 05:40:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 285dac7e3b2032cf5b4edffdb0febfab SHA-1: 01f129b903f1614f0472229f6c14b8a707d29348 SHA-256: e07d8300824cceb8c671f095bc114561f77770eac5edbaf2de74e77f8aeaab44
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded link `https://ttraff.com/pify?keyword=calendar+design+illustrator+file+free` is a known malicious redirector. The document's structure and numerous links suggest an attempt to manipulate search engine results or lure users to malicious content, likely as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=calendar+design+illustrator+file+free In PDF document text
    • http://xoxekal.timelineethiopia.com/uploads/1/3/1/4/131408024/cf42697da21c8f1.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/1/0430/8277/6727/files/bigonodigutigid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4415/0165/files/comunicacion_en_el_ambito_laboral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/pobiselexojovozatukizamaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/foditakewegawurujuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4238/4545/files/titufaruzugojapolijekupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/manual_de_manejo_de_nj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/practical_academic_essay_writing_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/44771659939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0051/8040/files/posemuzimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kekiwimuzavenomudajelibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5153/9866/files/fedijurudasuvoragatuwodug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/xodololenaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7078/2614/files/borderlands_3_ps4_performance_settings.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEB 4980 bytes
SHA-256: 7d5f98f9e77d9e7958fe440362c942b5a909cb2c07444a1c1a4492b3cf119d67
font_01_sfnt_off00008fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE8 10192 bytes
SHA-256: e28353c43d0db07d8578b85cb4d0617a147e02c2fba8771d2ebf51b390cf80c6

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