Malicious PDF — malware analysis report

Static analysis result for SHA-256 3164e26510c6001c…

MALICIOUS

PDF

61.5 KB Created: 2020-12-19 06:17:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4a648e6d02b633f7f2d293333991d2ba SHA-1: bc2d86757d4d5a2292ac975916431d02dabac419 SHA-256: 3164e26510c6001c009a1080a86b34148350ba251b38266cce5ffa6953ba10ab
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 0.9995

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://trafftec.ru/strik?utm_term=connecticut+dmv+manual PDF link annotation
    • https://pawawejovotete.weebly.com/uploads/1/3/2/8/132814611/9391254.pdfIn PDF document text
    • https://wolalusajiri.weebly.com/uploads/1/3/4/6/134600438/tesijagomodobunaset.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417305/normal_5fc4aed32c330.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/4bdc8488-8dec-4af0-8088-5b33287a97f3/on_the_far_side_of_the_mountain_comp.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/dazuxuliwuzi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0a2445ca4f790267e9ee/1606224421191/52569852808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3352f1d1-4204-4d0f-93c4-b8fa540574df/9720128533.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/bakikagirevejikajanupa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e6b96cb-2e0d-42e2-bb07-b630233df7f8/academia_de_vampiros_2_online_legend.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57fa7f7cf8c754049e1b2/t/5fd70965ab77727176a66575/1607928172927/50488990510.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_off0000b735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB735 4776 bytes
SHA-256: 5eba6b15cff433278776baa29a58d4983abf76ad89d763ece563bb2c08a84904
font_01_sfnt_off0000c762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC762 10104 bytes
SHA-256: ab48c3ae51305f4fce7e5c576f68327d5d592970d54d7a762a65eceeaa831415