Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0bfb0df99c4d98e…

MALICIOUS

PDF

50.6 KB Created: 2020-11-27 03:49:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9b7f91743027640c33d254d359cff76 SHA-1: f9367ba7e3244f1d928613c9accd0c31e7d8c164 SHA-256: e0bfb0df99c4d98e124db03b9adddfc56ee61249e9543f27d70f05e60744911b
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure, specifically 'ggtraff.ru'. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and the malicious URL suggest it is designed to lure users to a site for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8156

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=magna+excitor+bike+yellow+price
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rirusozo/fujivesizupixi.pdf
    • https://s3.amazonaws.com/vufupu/blessing_shumba_zita_renyu.pdf
    • https://s3.amazonaws.com/vososasoxumete/12920972789.pdf
    • https://s3.amazonaws.com/nuxepiduded/el_evangelio_de_felipe_apocrifo.pdf
    • https://uploads.strikinglycdn.com/files/27ad390c-1a63-49dc-9d08-8560ad7751b8/the_daniel_plan_free.pdf
    • https://uploads.strikinglycdn.com/files/72e4467c-ab25-4fe2-992c-68718cdcac24/97358679504.pdf
    • https://uploads.strikinglycdn.com/files/95c672fa-9727-4c05-ba50-df68429ee228/pokemon_sun_and_moon_romsmania.pdf
    • https://s3.amazonaws.com/napejaxosinages/nufiv.pdf
    • https://uploads.strikinglycdn.com/files/dcbf566d-cfd1-4664-b0b3-537f3c824317/halloween_word_scramble_adults.pdf
    • https://uploads.strikinglycdn.com/files/d4d184e4-4cb4-4790-84bd-e5331491f423/10344948750.pdf
    • https://uploads.strikinglycdn.com/files/5d36ea80-d249-4460-a399-e2ee8680c92a/femig.pdf
    • https://uploads.strikinglycdn.com/files/9812b32c-1df9-48dd-982b-8117b2fba2e1/50_english_conversation.pdf
    • https://uploads.strikinglycdn.com/files/6ba78190-7b71-4540-aace-88766383e3a9/jaguwef.pdf
    • https://s3.amazonaws.com/tetazino/nofagako.pdf
    • https://uploads.strikinglycdn.com/files/4d347042-bd5f-4fe1-8536-cad7464f87a0/47316431937.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b1c7.bin
3b6f3852d820a51e3b9a1d3f07a327e29d61e28cbf5914766ebcc76cb534f99d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C7 5392 bytes

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