Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab2be3f1a891b742…

MALICIOUS

PDF

66.8 KB Created: 2020-11-27 23:43:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: cc3548e77c5ccd1a628f273594fd2a5e SHA-1: 9f6811206e77feb61a399b63da35957709cd4b65 SHA-256: ab2be3f1a891b742eb956932d5a1f63442ea095b8f38a8a57464849e0057b242
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/strik?utm_term=axe+murder+boyz+lyrics PDF link annotation
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/d51bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419654/normal_5f997ffe227d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371005/normal_5f8eb0fba4719.pdfIn PDF document text
    • https://lituveso.weebly.com/uploads/1/3/4/3/134362288/jugam.pdfIn PDF document text
    • https://rudazolabogufaj.weebly.com/uploads/1/3/4/7/134772206/94d51a9e04a125.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489241/normal_5fb37361dc429.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d402392a-4f9e-45c6-8f7f-90c9207acdbd/adobe_photoshop_cs6_portable_free_download_cnet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0aefe3b-0e0f-4ced-8d29-b1701bb546a1/zefedopuga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fbc3969-96d3-4e5b-8c81-0585cad7c55f/pcg-61611l_drivers_download.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/stanford_unofficial_guide_to_disneyland_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e26b589-155c-47a0-970a-eebf98d5433f/bidorogudaxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3877eab4-0da7-4f81-9613-532defda4d48/gagiwigitesovob.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_off0000c7e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7E3 5224 bytes
SHA-256: c7cfd19364ec3bfb929f7d30bcc1b52861f7ca757f0a515dd5413b4f26a04f19
font_01_sfnt_off0000d9a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A8 10708 bytes
SHA-256: 5ed21b313af8a0f95ccba281d1cd67bb6f968863d519bf345c2950165496950a