Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aae47fe7087d182…

MALICIOUS

PDF

75.0 KB Created: 2021-01-04 02:14:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 0510e3549de16bb6f9f80f6ea8f9626e SHA-1: 06b4422dede787ade204d18078b66ccf580f2245 SHA-256: 7aae47fe7087d1825d4b531cb92c1eb8ba0c581436c9fdbbfa33842d093b6234
214 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to redirector infrastructure or link farms, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary malicious URL identified is 'https://traffine.ru/aws?utm_term=gangster+full+movie++hd', which is flagged as malicious. The ML classifier and ClamAV also strongly indicate maliciousness, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/aws?utm_term=gangster+full+movie++hd In PDF document text
    • https://zoxelokot.weebly.com/uploads/1/3/0/9/130969402/9767480.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/895b91c8c2ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488100/normal_5fd0670c889c5.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/rowubunak/65989411300.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/bancomer_mobil_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/24176579048.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/siwosojiwoxevuval.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/local_anesthesia_dental_hygiene_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/game_ancient_cities_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/canzoni_per_bambini_accordi.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_off0000e914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE914 5412 bytes
SHA-256: aed19ad482963c21a28ff7d9faba9cae4997fdda48510445c458c8036e3a0e8c
font_01_sfnt_off0000fb5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB5C 10660 bytes
SHA-256: 70ec94ce55d27d547aa9706659b19dd48edd3e8130600c3a96b76b160d84fd03

Open this report in the interactive analyzer, or submit your own file for analysis.