Malicious PDF — malware analysis report

Static analysis result for SHA-256 62463cbd63b865ed…

MALICIOUS

PDF

73.1 KB Created: 2020-11-14 16:57:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: dc1590081fbad2ff58181bf5e35688b2 SHA-1: 1daaec81b45ce82960f59cfb34ad87eb9d1f4794 SHA-256: 62463cbd63b865edaa190b240c06c5f62dc14f4ea45c938788e3975729d95def
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, a technique often used in link farming or phishing campaigns. The primary URL, https://trafficel.ru/strik?utm_term=la+guerre+du+feu+streaming, suggests a lure related to streaming content, likely intended to direct users to a malicious site. ClamAV and ML classifiers strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=la+guerre+du+feu+streaming PDF link annotation
    • https://larogarokod.weebly.com/uploads/1/3/4/0/134018293/vorukarevo_laveg.pdfIn PDF document text
    • https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/4703094.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/8967f5c3-3c8a-4ad1-9808-73f3e5b29bcd/gododiwazasisadiwobotize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f13796c7-6db3-40eb-a5f8-cc8cccd394a2/7541453968.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/editor_job_description_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/ascvd_risk_score.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17ef1832-652b-4eda-b960-7d3e700c12ef/a_guide_to_managing_and_maintaining_your_pc_8th_edition_by_jean_andrews.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/common_core_algebra_1_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af2c2362-d83e-49ff-9b76-7af774f9c26a/92215505838.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c2082d6-da4c-4ca2-b87e-a87f20913df2/vakuzowixazoledamiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48e3565e-62e5-4f2b-911a-58ecb756ba36/20305393667.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fed1e1ca-1f65-4c27-9d93-cf8d6ea4db89/71191103087.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8E 5136 bytes
SHA-256: 3c2867b276b629407bcf6b648eeddb1109e2b48ae8de4b304920963da454cff6
font_01_sfnt_off0000eef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF5 12704 bytes
SHA-256: 9da9bd25a6df25862cd5c94d5a2e750dc4a1bdee02861398e75b5d9d0a5184b9

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