Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6486ec23ae3790c…

MALICIOUS

PDF

93.3 KB Created: 2021-03-15 12:35:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f7060dab3918d6ee5fd1b2622ac47c2 SHA-1: 1d393c0537741fb9959c8dab14e48702b6b048b8 SHA-256: a6486ec23ae3790c1954475f17457f1a8d871c2656e333ff4d53a20020779e26
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document exhibits characteristics of an advance-fee scam, presenting itself as a financial report to entice users to click external links. The presence of numerous external links, including a link farm, and the ML classifier's high confidence score indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it may exploit vulnerabilities or lead to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://dafemum.ru/strik?utm_term=church+annual+financial+report+sample
    • http://mizafaroremida.getenjoyment.net/javatpoint_core_java_tutorial_download.pdf
    • https://cdn.sqhk.co/fekerepusa/Uibijie/gewajorugojusut.pdf
    • https://pidilamobojuri.weebly.com/uploads/1/3/5/3/135310388/112f90faf8ea8.pdf
    • https://valejuti.weebly.com/uploads/1/3/0/7/130739952/pulivoka-sopiwepejutar-zupezuledimivun.pdf
    • https://cdn.sqhk.co/gaxobenona/etWogg5/hidden_valley_ski_resort_pa.pdf
    • https://pobunusegem.weebly.com/uploads/1/3/4/4/134460984/b89e2.pdf
    • https://cdn.sqhk.co/libobivole/Mgcgght/monster_hunter_rise_release_date_xbox.pdf
    • http://rakadan.sportsontheweb.net/fotunatotalepujesaru.pdf
    • https://cdn.sqhk.co/sebuwemid/hexWjjk/veborizoreloruvopemunoso.pdf
    • https://cdn.sqhk.co/befozaxulot/vgc9vhf/labutu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/76e921ee-6e6f-4b11-9ef8-86e1ca345627/ejemplos_de_dispositivos_de_procesamiento_en_una_computadora.pdf
    • https://uploads.strikinglycdn.com/files/b8581f15-8bcc-4401-b618-2034c9bf14ae/xegolawu.pdf
    • https://uploads.strikinglycdn.com/files/11334db7-30e7-48bb-bf83-10f61f006158/48620471432.pdf
    • https://uploads.strikinglycdn.com/files/139afa46-de1a-4e2a-a911-39abe709d554/sekaf.pdf
    • https://uploads.strikinglycdn.com/files/32472236-601e-489d-b1b3-8f733073f582/is_defending_jacob_series_on_netflix.pdf
    • https://uploads.strikinglycdn.com/files/ad6423e9-5be3-490d-8138-dc26faf8a123/80155061280.pdf
    • https://uploads.strikinglycdn.com/files/ec36a28e-0f1c-4bb6-a4f8-4f0624fcd4f2/adobe_premiere_pro_cc_2015_crack_serial_number.pdf
    • https://uploads.strikinglycdn.com/files/97fdbb6d-921d-4c1c-afae-e245b9c8d07e/60044749038.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012b60.bin
0df600dd567d246e578a4a235acd704b010a91bb6b097bc1d6ff2edb808bdda6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B60 5160 bytes
font_01_sfnt_off00013cc2.bin
7d00649de14a9c003c1f189ed9db29911dfc48ddc4a28d1bb76deaf402427659		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CC2 12308 bytes

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