Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b531776de32acb1…

MALICIOUS

PDF

69.0 KB Created: 2020-11-30 22:32:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6e8b2e1abd25be07985946295954664a SHA-1: 2d032a1cbee4a5406ac543083dff15322ab5012f SHA-256: 6b531776de32acb1e92313d6ccb6b4cb27ae21e47ba395f444334b474de95710
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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=my+golden+life PDF link annotation
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/1799969.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416512/normal_5f9a8f689914b.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/5095107.pdfIn PDF document text
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/nedakiloput_bilofevuwuv_siweferog_vifinufawovuteg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/14863370226.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/bonhoeffer_metaxas.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/pisupod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe05a8173fb5383b68cdd8/1606288810483/2010_dodge_grand_caravan_service_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc147a892c50b1a1e7a1756/t/5fc54ae2f3de5e49b513bee6/1606765282979/esfj_personality_page_strengths_and_weaknesses.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/current_cm_list_of_india.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc116c5bdb33045eec368a4/t/5fc28c5c9b1ed035382f2be9/1606585443610/mtg_arena_draft_tier_list_war_of_the_spark.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d48f185-4065-4d35-92ee-51f4b87d99da/8519201231.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e155104edf1d7780ac3e/t/5fc3d6b418e72e5fdb4d93a7/1606670004417/types_of_reproduction_asexual.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 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD280 4696 bytes
SHA-256: 2eb90abdb0bdc6831270441a0f6a4577cc0efd7361c50eabe2ebd843a6e028c4
font_01_sfnt_off0000e2af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AF 10956 bytes
SHA-256: e3857fc40e162edf58776cf89c801cd2a09672eddf9d1e8f62c58a594193fe7a

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