Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9351b2ef8df345e…

MALICIOUS

PDF

69.3 KB Created: 2020-11-12 22:40:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b9172f235cd5801bb3ebf521cf586a06 SHA-1: 9f68abd4dd5173eff96b342959d9c4b957c08327 SHA-256: e9351b2ef8df345e8993aa4cd2e500b7ce89f9eea5fb9d9eaf5bc31b50eecd06
214 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded URLs, many of which point to link farms and redirectors, indicating a phishing or malicious content distribution scheme. The primary malicious URL identified is https://gettraff.ru/123?utm_term=longstreet+tv+show+cast, which is flagged as a known malicious redirector. The document's content appears to be obfuscated or corrupted, but the presence of numerous external links and the critical heuristic firings strongly suggest a malicious intent to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://gettraff.ru/123?utm_term=longstreet+tv+show+cast In PDF document text
    • https://cdn-cms.f-static.net/uploads/4453108/normal_5f9fab6d2d3b3.pdfIn PDF document text
    • https://xavexedale.weebly.com/uploads/1/3/4/4/134475354/fonininezif.pdfIn PDF document text
    • https://dopikilazobowu.weebly.com/uploads/1/3/4/4/134488506/01f754.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366620/normal_5f92fa8505ff5.pdfIn PDF document text
    • https://kofudavobew.weebly.com/uploads/1/3/4/6/134602163/5f6fde90508bc.pdfIn PDF document text
    • https://gekeforoka.weebly.com/uploads/1/3/1/4/131438206/gutepilazimope-zovuwoxofe-dolamow-nogavotu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384164/normal_5fa4c95e60711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467273/normal_5fa52bf76169a.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/a5e65e8f-c75b-4b8e-85fb-17b2b10482f8/jefemitipukimopevezamop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b91e4f6-7c0f-4f28-a0de-553b25776d1f/96363595769.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/fevozorupuvexedo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd421e74-6e12-4b74-b2af-5418d7364316/pinonofutodoxosebiresulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df761a65-00fc-46ce-ae46-917f07b38e67/rx8_headlight_bulb_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/28234060235.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56a2c1f5-072d-4eea-89dd-bb34423a263a/98317496616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c375301a-423f-49e8-9a26-5fd064164001/far_cry_2_mods_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d2fbc08-1519-48ce-8dbc-8b625022dd5f/95830650693.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_off0000d3f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F8 5124 bytes
SHA-256: 7aa2e028843398c3d7f0f62a3f3173cb55b67cc3c81992c0ed4de629c9c7ca6a
font_01_sfnt_off0000e584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE584 10428 bytes
SHA-256: 02f765f5ad8d08b52291ed40c9c1d5758d27a6d4779bca1af6f2a996988b7cae

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