Malicious PDF — malware analysis report

Static analysis result for SHA-256 30b420a09d3c36a1…

MALICIOUS

PDF

72.4 KB Created: 2020-11-14 20:41:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: eee2218faf3332fc065901005e6144f2 SHA-1: 901090b43d6ce565231c429c07763fb30287da7a SHA-256: 30b420a09d3c36a11897ebe80785766da2a6a36131a11294620f887c3e30c0e1
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/strik?utm_term=cool+edit+pro+2.0+free+download+windows+xp PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368750/normal_5f94ab6c0b139.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369506/normal_5f8e185d32290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478438/normal_5fadfc0957772.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388620/normal_5fac369820833.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424985/normal_5f9ce6cfe94d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452161/normal_5fad6cdbb3660.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dezajok/53209617109.pdfIn PDF document text
    • https://s3.amazonaws.com/pusumowi/tuesday_of_the_other_june.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/wugeverapasifojanoros.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4820d94-312e-41b2-804f-e57f91aa0f55/ter_gusb2_n_drivers.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/alexander_the_great_last_wishes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e4610dd-0c6d-4c0e-8f18-d871bf05b523/xudevemigotodudorele.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/55584249654.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/flute_scales_and_arpeggios.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_off0000dc52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC52 5404 bytes
SHA-256: c03403f95fe50b33b9b50c0afd8672b8f8552666ef1ae675295b9cea2a07d178
font_01_sfnt_off0000eedd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDD 11136 bytes
SHA-256: 0f9d9202ff998fc7e50c197c1275d5ae003e4b8a30c414e98091f894a454d9ea