Malicious PDF — malware analysis report

Static analysis result for SHA-256 d11d382e3361ee39…

MALICIOUS

PDF

71.6 KB Created: 2021-03-10 08:36:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: deae69283fde9f0700b8d8a1ed30f5e1 SHA-1: a937e0d8d2ed9eb98bcc63b4662b6007c1df2189 SHA-256: d11d382e3361ee399d4ab41c5e14a5a6d6b34b5a8abc83a934a751e3ac322534
184 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with at least one pointing to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The document body, though heavily obfuscated, contains references to 'Zondervan bible dictionary pdf' and authoring application details, suggesting a lure to disguise the malicious links.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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/award?keyword=zondervan+bible+dictionary+pdf In PDF document text
    • http://sodowetan.mywebcommunity.org/fraud_examiners_manual.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/how_to_get_my_lg_tv_code.pdfIn PDF document text
    • http://persequen.com/79873695546ai9gu.pdfIn PDF document text
    • http://instapresent.site/momikoponevozckyl.pdfIn PDF document text
    • http://afracheat2.xyz/15443459121h60uo.pdfIn PDF document text
    • https://cdn.sqhk.co/vikaxokaso/hfjjjdJ/18824589780.pdfIn PDF document text
    • http://help-feedback-amzn6.xyz/choral_warm_upsnjk61.pdfIn PDF document text
    • http://help-violation.com/73775752552udeyz.pdfIn PDF document text
    • https://cdn.sqhk.co/fujalapevame/chi4if4/12161129819.pdfIn PDF document text
    • http://kixubobumetorab.iblogger.org/lejed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tixofimisupabev.onlinewebshop.net/where_to_buy_a_treadmill_in_canada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8281dcc4-a016-4491-8642-86e5786e89f4/safety_rules_at_home_for_4_year_old.pdfIn PDF document text
    • http://gatituz.rf.gd/upload_soundcloud_via_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dc5b164-6366-4a3f-8a24-371f961ff223/bivipopijepufijajasedug.pdfIn PDF document text
    • http://pidukuniwid.epizy.com/valulu.pdfIn PDF document text
    • http://telusomabufa.onlinewebshop.net/43978679069.pdfIn PDF document text
    • http://vakizonozajaxe.onlinewebshop.net/uk_driving_theory_test_app_2019.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB24 5232 bytes
SHA-256: d7e00daa8bc5d5bff9d8629fec556d0253ce279cc1d191ff2a2da40784c8a746
font_01_sfnt_off0000ed0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0D 10868 bytes
SHA-256: 09e58575db31c7c073bffdebc02f8a94983047736756e89ed7f29d6a1cd72b21

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