Malicious PDF — malware analysis report

Static analysis result for SHA-256 93612c125ee304cb…

MALICIOUS

PDF

102.5 KB Created: 2021-03-14 05:25:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 2313179b04069a16c7530c21cd414408 SHA-1: d3eea3873a230320d1057190737c01bc77100607 SHA-256: 93612c125ee304cb96231db995d487e5767902f4e210f16558c1aef168556bd4
194 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous external URLs pointing to various domains, including Weebly and sqhk.co. The presence of a 'download button' lure suggests an attempt to trick users into clicking these links. The primary purpose appears to be directing users to potentially harmful content or facilitating further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ponafet.ru/123?utm_term=bhojpuri+dj+dance+video++2018 PDF link annotation
    • https://vigodabazo.weebly.com/uploads/1/3/4/8/134872933/gitifa_ravaseliwix_nikujex.pdfIn PDF document text
    • https://cdn.sqhk.co/loxosefivipo/gcJgeXv/sentinels_of_the_multiverse_custom_heroes.pdfIn PDF document text
    • https://mepolelo.weebly.com/uploads/1/3/4/6/134626310/6879473.pdfIn PDF document text
    • https://cdn.sqhk.co/vetukalujir/NhbjjUy/cisco_switch_dashboard_grafana.pdfIn PDF document text
    • https://mipadabu.weebly.com/uploads/1/3/4/7/134751654/sizovenojobuvi_bovodu_zubutunidafani_zozufubijegofi.pdfIn PDF document text
    • https://cdn.sqhk.co/gobajejuz/xibCTji/17369427781.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/dje5ijp/bikofu.pdfIn PDF document text
    • https://ropedali.weebly.com/uploads/1/3/0/9/130969406/e1761f79.pdfIn PDF document text
    • https://cdn.sqhk.co/puxumede/bfhcDjg/93196963186.pdfIn PDF document text
    • https://sugowula.weebly.com/uploads/1/3/4/6/134646485/zazizoparipe.pdfIn PDF document text
    • http://memimusisat.getenjoyment.net/sufawitudafavek.pdfIn PDF document text
    • https://ximewenidurap.weebly.com/uploads/1/3/4/6/134651426/23364.pdfIn PDF document text
    • https://cdn.sqhk.co/vebiziwob/iabjiyS/jokujorekisunawatabezi.pdfIn PDF document text
    • https://wakutoji.weebly.com/uploads/1/3/4/3/134314583/fagib.pdfIn PDF document text
    • http://rulajamizap.getenjoyment.net/7_wonders_of_the_world_in_urdu.pdfIn PDF document text
    • https://kowagazobavov.weebly.com/uploads/1/3/0/8/130874359/4237601.pdfIn PDF document text
    • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/vogefilezobunumob.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/iihlmhc/police_prank_call_gone_wrong.pdfIn PDF document text
    • https://newusopuwizan.weebly.com/uploads/1/3/4/7/134713970/texexarisunowedidu.pdfIn PDF document text
    • https://cdn.sqhk.co/davusegeb/hgvgeib/pianist_english_names.pdfIn PDF document text
    • https://zulozagadome.weebly.com/uploads/1/3/4/3/134318764/salajed_vatod_sofakijuvuwupam_posepe.pdfIn PDF document text
    • http://xozowilozoga.mywebcommunity.org/us_covert_operations_manual_lexington.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AA3 5460 bytes
SHA-256: 69ccacc90cbdef0530397e7b89314e8c5ebe5f27af0d1e69d66cb3822434d857
font_01_sfnt_off00015d27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D27 9824 bytes
SHA-256: bd89fc4d8b3744eb59338b96969a2440df71c6d7ead7e23e8788124ac6514f1b
font_02_sfnt_off00017e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E83 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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