Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e87553579a6fe5c…

MALICIOUS

PDF

69.1 KB Created: 2021-03-29 00:35:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 7282e79c83bec205c971557219ddcb3e SHA-1: 8b58f01838145f796a60619196b74b6ce983e3f4 SHA-256: 9e87553579a6fe5c58e7ce9d408de4bd2b48376662e79060012a1414c2ca90f5
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 0.9992

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://seumenha.ru/123?utm_term=fbise+practical+date+sheet+2018+ssc PDF link annotation
    • https://fagudigozupubu.weebly.com/uploads/1/3/6/0/136042622/4449252.pdfIn PDF document text
    • https://sajosapisede.weebly.com/uploads/1/3/4/3/134344890/nitobi.pdfIn PDF document text
    • https://warimeso.weebly.com/uploads/1/3/4/7/134720830/pekepemabuxidedudive.pdfIn PDF document text
    • http://linilemutigonoz.22web.org/whirlpool_cabrio_platinum_dryer_wiring_diagram.pdfIn PDF document text
    • http://idealicaufficiale.website/17782756628cyg49.pdfIn PDF document text
    • https://cdn.sqhk.co/safubuguva/Yhhhjic/87902281976.pdfIn PDF document text
    • http://prostotit.site/why_he_disappeared_bookkt22q.pdfIn PDF document text
    • https://waforavorodi.weebly.com/uploads/1/3/4/3/134314120/baxikudogun.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/dkhdKhe/bouncy_ball_games_to_play_at_home.pdfIn PDF document text
    • http://ch-data-2a8fv9s.pw/57533537305blxdl.pdfIn PDF document text
    • https://garujidizog.weebly.com/uploads/1/3/1/3/131398488/xekudakise.pdfIn PDF document text
    • http://hurricane1.space/noon_online_shopping_customer_care_numbermy74i.pdfIn PDF document text
    • http://xufunuduxatene.iblogger.org/fowugudojuzebevof.pdfIn PDF document text
    • http://hamlikjorettoop.ru/what_is_literature_in_our_lifer54v2.pdfIn PDF document text
    • https://cdn.sqhk.co/vukupamita/oicwiix/51974775350.pdfIn PDF document text
    • https://cdn.sqhk.co/goseluna/M0Npchb/babadolixebarogadezisu.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/gedimuta/rokebugajonuxawomali.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/259b798c-20a2-4683-99e8-2b3dd10fc26a/35212985645.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/90673003896.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/abilene_reporter_news_obits_abilene_texas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64d45252-66e5-4fe3-8fc1-c15d44807a26/94378568876.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/83680768712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68bc5e82-c34e-4ef2-b902-d2135e3ebb7e/22433484339.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/42094388492.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD134 5776 bytes
SHA-256: e6fa61ccbd95cbf8fdb3246f6543f3c81e623d1637b6f2f0a5898ffecd868977
font_01_sfnt_off0000e4d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D0 10020 bytes
SHA-256: d22cfb7cac659e252f86ba2cf5834e0fa06a86b2d42bc40879a35d7e67599112

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