Malicious PDF — malware analysis report

Static analysis result for SHA-256 9810536b007240f4…

MALICIOUS

PDF

73.4 KB Created: 2020-12-30 12:50:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d82fe38acfd9b77eb27f4c2bd3c5a37e SHA-1: 48cb2e1befe3e0ae0e3316ec0cc487f1d370792e SHA-256: 9810536b007240f42564d5144f7e3dfa7e23f65937c45fbb39b6cf68af67a92a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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.
  • 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://trafffe.ru/strik?utm_term=gardenscapes+level+579 PDF link annotation
    • https://cdn.sqhk.co/nudotunaza/UmpBqxR/xodagonetalo.pdfIn PDF document text
    • https://fulotetaputu.weebly.com/uploads/1/3/2/7/132740707/nawapikidi.pdfIn PDF document text
    • https://cdn.sqhk.co/vakanaju/hbjeOqb/jugipinukatujagudawe.pdfIn PDF document text
    • https://daxejinuvu.weebly.com/uploads/1/3/4/6/134645798/b5cf56f2224fa0.pdfIn PDF document text
    • https://lekomuge.weebly.com/uploads/1/3/4/7/134773229/ruxemeka.pdfIn PDF document text
    • https://cdn.sqhk.co/libibajuzumu/uxSgiHg/best_ringtone_maker_app_for_iphone_7.pdfIn PDF document text
    • https://jabefebilinoke.weebly.com/uploads/1/3/0/7/130739415/2083498.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
    • https://uploads.strikinglycdn.com/files/1adc6fe1-eef2-4224-a7e7-c2ab7d7e1cb1/58311743566.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba299a04-8bb2-4cda-bccf-b12d27fdbf50/38583209398.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb9c3931-28da-41e3-8721-a0aacfe37d91/82076325134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ddf96ea-c353-4a88-9108-1c1de58d1dee/31228577341.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b29fdff3-5f7c-4114-87e8-bbd621a48d40/medoc_mountain_state_park_trail_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43eb8f00-9ce0-436e-99f2-7d0b0bf2da77/60752994711.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14ab769c-73fb-48de-9ccb-1ec218695860/lare_study_guide_section_1.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD55A 5068 bytes
SHA-256: a70be7247ff03d905663288828f540d4b4d9a12f6bb87239c1aa951c9931ca7d
font_01_sfnt_off0000e6b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B1 10600 bytes
SHA-256: 13c7be8f3f94ea5e64acaf404c51050a5d3f4423a7e2ef113f4a2835cd517214
font_02_sfnt_off00010b05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B05 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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