Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecba29130416d2f3…

MALICIOUS

PDF

74.3 KB Created: 2021-02-13 06:24:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 38d51ef57674b02d3ffea0dd61a436c9 SHA-1: f8b5fee08402494639eb097af1fe5ec80f80386d SHA-256: ecba29130416d2f338debb00983e2570cdf683106430b2de4620eb8cfe70bda8
126 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 0.9996

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 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.
  • 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://crophysi.ru/wix?keyword=vocabulary+power+exercise+b+answers PDF link annotation
    • http://sacredname.ru/468175443534p74m.pdfIn PDF document text
    • http://digitaltoolsfor.xyz/jisenig26fuy.pdfIn PDF document text
    • http://tiktokhd.design/wings_of_fire_wiki_roblox12rbr.pdfIn PDF document text
    • http://verifiedbadges-form.com/lexegaxamuvawetuxujoxipid4rfms.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475715/normal_5fccaed533682.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/8270610.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/ifgcjfz/41163015515.pdfIn PDF document text
    • http://tb-films.ru/lawiregilozizajufei03r.pdfIn PDF document text
    • https://cdn.sqhk.co/xidosisew/EgfC9hg/pofakemojifa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485296/normal_600db7d754c3b.pdfIn PDF document text
    • http://luminar2-download.xyz/91430816286h5263.pdfIn PDF document text
    • https://kerejokav.weebly.com/uploads/1/3/1/6/131637695/zisijopexorux-gowipofaraxose-denovovivekepet-dagejijamiv.pdfIn PDF document text
    • http://1xbets-reg.site/z390_aorus_master_hackintosh_guideydqec.pdfIn PDF document text
    • https://gipuwefamesogol.weebly.com/uploads/1/3/1/4/131453323/matod-takube-niwolurawaji-kikumifuwib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444115/normal_601fd3703e8dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390081/normal_5fd1f0679b4bd.pdfIn PDF document text
    • https://vusuranozaxo.weebly.com/uploads/1/3/4/0/134012668/ratusudutobuvejes.pdfIn PDF document text
    • http://instgrmmverifiedbadge.com/strike_force_arcade_fps_dominator_ps4y7240.pdfIn PDF document text
    • http://usecabinets.xyz/ben_10_omniverse_galactic_champions_apkr5j8g.pdfIn PDF document text
    • https://cdn.sqhk.co/luwukamuku/mwhhHhh/world_war_z_2_game.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://s3.amazonaws.com/paxivogedewilu/wiroxif.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA46 5096 bytes
SHA-256: 23ac4dde4b233d5f324378d504ab1a3cc7918c5069c4c530eb8fab834713598f
font_01_sfnt_off0000eba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA8 9936 bytes
SHA-256: a627968460020c4e2844d553b2bb6eac1966337d57ca16a6ac6821d8a1e82a58
font_02_sfnt_off00010db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DB4 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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