Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee26e20a121cb4af…

MALICIOUS

PDF

73.2 KB Created: 2021-03-12 05:01:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 9f1dc526ed5ee7b32d143c30d72ad3f7 SHA-1: 39cb62078a7742aa0accf3f755eb55df81b31e95 SHA-256: ee26e20a121cb4afe9bf8c4ea406cf7b3231efe70eb6de8500ddc2ac89181ebb
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many pointing to disposable hosting, and is flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, appears to contain product-related keywords, suggesting a lure to disguise malicious links. The presence of external URIs and the overall structure indicate an attempt to redirect users to potentially harmful content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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 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://gimoguvi.ru/wb?keyword=jam%20thrill%20wireless%20stereo%20speaker PDF link annotation
    • https://cdn.sqhk.co/zimofuzam/3igFyNm/once_in_a_while_timeflies.pdfIn PDF document text
    • http://brandframeb.com/quarterly_payroll_taxes_form_941d64mg.pdfIn PDF document text
    • https://cdn.sqhk.co/lidabofob/dPjhIii/iphone_11_hz_rate.pdfIn PDF document text
    • http://generatorsale.ru/16835327128gzxg3.pdfIn PDF document text
    • https://cdn.sqhk.co/piredonina/h9ihyg4/dessert_recipes_for_diabetics_australia.pdfIn PDF document text
    • https://cdn.sqhk.co/wisivelu/ljY6Rji/zebukisuxid.pdfIn PDF document text
    • https://cdn.sqhk.co/zepipawetopi/hbhbUgj/lelojedefasuxizatexekuxa.pdfIn PDF document text
    • http://safetymirrors.xyz/wodogapovi1ojgz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486983/normal_6022ae62d565d.pdfIn PDF document text
    • https://cdn.sqhk.co/nodewanase/hcoRyii/word_search_maker_software_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453550/normal_5fef6c4e3c459.pdfIn PDF document text
    • http://quinzsy-studio.design/cars_3_driven_to_win_apkztd8i.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/y4jfSIg/fresh_trimz_ltd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449205/normal_5ff4dff58c4e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367311/normal_601185b29d6b9.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/dYhdXge/epic_roller_coaster_mod_apk.pdfIn PDF document text
    • http://normaa-id.com/navien_npe-180s_pricebgxtp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477630/normal_5fe64ec6ef19e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377098/normal_6007e06d97551.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495392/normal_5fed5a1c9f22f.pdfIn PDF document text
    • http://unlockdeals.shop/revatodonafusekibewanigzce35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447079/normal_603341375e53d.pdfIn PDF document text
    • https://cdn.sqhk.co/libewepigux/ghhfgiL/how_to_get_followers_on_tiktok_fast.pdfIn PDF document text
    • http://mestorating.ru/fivuzizixufilomofezakenyurgc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_6018a0d8a4640.pdfIn PDF document text
    • https://cdn.sqhk.co/woxekivepi/XDDehbI/hsl_chairs_and_sofas.pdfIn PDF document text
    • http://reweder.site/primal_blueprint_fitness140h3.pdfIn PDF document text
    • http://003-center.ru/firolivekafewegidovo6nm8d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE25 5204 bytes
SHA-256: 2acfe4cc18a4871e287b441cd5a6f574b0c87bf8e60ae483755d1fc18f7cb113
font_01_sfnt_off0000efbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBD 11052 bytes
SHA-256: e065f6c1e0de607cbe1c3b012b31597e0d5c8d0285e03dad45974fbdf5b0bd3b