Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a00b466fb0d96a5…

MALICIOUS

PDF

76.5 KB Created: 2020-12-31 23:34:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4f28470712a0daafb43a9707bbe25bbf SHA-1: bd5c99daf048d5a5ce5f63a5226b11ec816fdd88 SHA-256: 1a00b466fb0d96a5470e90129a8ca78d3fb685eb0cdb95ed071bbb970d05a275
154 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?utm_term=tiger+zinda+hai+downloadming.se'. ML classification also strongly indicates maliciousness. While no scripts were extracted, the presence of a malicious URL within the document's structure suggests an attempt to lure the user to a compromised site, consistent with phishing or malware delivery.

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
  • 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.
  • 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://gettraff.ru/123?utm_term=tiger+zinda+hai+downloadming.se In 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/849dc501-8f23-42e4-b1ec-721bc7099a02/7971832100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0abba364-40a2-4195-a852-a514cb21307e/jukavutajaliban.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/118b4446-c5cf-468d-a565-91f5dedca730/mufiwedarevamagozizog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/332b9bd4-5f74-4431-9e4f-3fb51328a7c0/binary_ionic__molecular_compounds_worksheet_a_side_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83abefb8-c0a1-41bd-a790-699f41648dd9/41997989592.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19754f97-0eb7-4be0-b557-2e7e7fd745af/medidas_de_la_cancha_de_baloncesto_largo_y_ancho.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d07e0418-4abd-4dca-adef-5da89cc7af9d/article_review_apa_format_sample.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/486f73ba-5d6c-49d3-bb86-64d790bd741a/oraciones_coronilla_de_la_misericordia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a79e459-9c23-471a-8b24-49f2414e4cdb/10374254510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76dbb66d-8473-4063-bc2e-1c7fb9e4b7eb/torkom_saraydarian_books_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a036dc6-2051-460f-9778-45be9066ee1b/1.1.1_metas_y_factores_competitivos.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/61164599871.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b0a163c-135f-4eaf-a012-981807719865/tafabe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83068fcf-d881-4a84-ab98-64b492630912/gidad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7898438-6903-4dae-a7af-df7d7cf5f1b1/xujepipe.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_off0000ec09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC09 5360 bytes
SHA-256: 12d9001c870dede7fbe3a96243b3c393cdfec18e60789fd0132c086019029c8d
font_01_sfnt_off0000fe35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE35 11616 bytes
SHA-256: 55d2072c4ab2c90384edc1c9dd0f6be22e1e0c0a11450e0a3bb2481bb9f14a21

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