Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f7c7709323eaa6b…

MALICIOUS

PDF

72.3 KB Created: 2020-11-26 15:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ea3eeef0c87c3f4b87b1c8bee88a6b8e SHA-1: d3169e2f1e31f3f840203e6f237a25d85f7d4e0a SHA-256: 7f7c7709323eaa6b840ad1842ab1bf80e083814da5a9f760c906fb67c0bc7078
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-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://traffset.ru/strik?utm_term=lake+of+the+woods+va PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/gubevakoxozumezejifa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8683e316-4920-46e3-a3e8-3f8ccc4cf468/una_temporada_en_el_infierno_fragmento.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/548886a6-ff57-44fc-9f97-0721cdbef8f3/red_blood_drops_images.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a00cc31-bdef-465d-9b5e-cfb9be4b5919/mahfiruze_hatice_sultan.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/clifton_forebay_fishing_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b603b9cb-dd63-410f-afd4-b7ce7b345f4e/xefijexixopufoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8fb823d4-70d1-4168-a413-d5d1aa37d2c5/16912242059.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/la_foule_paroles_english.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/houghton_mifflin_harcourt_teacher_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2eebe30-f4a1-4082-a01e-bd82a4427483/17196227412.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/yamaha_clarinet_mouthpiece_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/best_electric_washer_and_dryer_2020_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/81648386992.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/vidolitegazudidodik.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/the_house_on_mango_street_essay_ideas.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_off0000dccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCD 5024 bytes
SHA-256: 74b3ae4ab7425b5f0d06eb833beab2188f9025e0b57caebb84f9cc9f6f6566cd
font_01_sfnt_off0000ee0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0B 11396 bytes
SHA-256: 1b983a441f1d22d23bb0f8ec3932e0920fbba9b2bd09d682a34c5b161065d2d2