Malicious PDF — malware analysis report

Static analysis result for SHA-256 74eefa0ca63ba65d…

MALICIOUS

PDF

72.6 KB Created: 2021-06-08 20:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 406269846d66d71cb77b147ff0b3ec13 SHA-1: b0c5fc8267da09567e842f237fefab6f353dd76f SHA-256: 74eefa0ca63ba65d295880a65de00297ac3af85fcd6b8245b1caf735eacadcfa
266 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document is identified as malicious by multiple heuristics and ClamAV, indicating it is a phishing lure. It contains numerous external links, many hosted on disposable domains, suggesting a link farm designed to obscure the ultimate destination. The document's content and heuristics like 'SE_MFA_LURE' and 'SE_PASSWORD_ARCHIVE_LURE' strongly suggest it is part of a credential harvesting or multi-factor authentication abuse campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 8

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://irlanc.ru/pbw?utm_term=fill+form+10c+online PDF link annotation
    • https://mozovarowojexi.weebly.com/uploads/1/3/4/8/134867055/7285.pdfIn PDF document text
    • https://nawomabikovuz.weebly.com/uploads/1/3/4/7/134730946/3681393.pdfIn PDF document text
    • https://nizitorewazoxi.weebly.com/uploads/1/3/4/7/134704220/mimitegesefebidone.pdfIn PDF document text
    • https://vawenajibafadak.weebly.com/uploads/1/3/1/3/131384306/regugonubikigasi.pdfIn PDF document text
    • https://wovugijewinekox.weebly.com/uploads/1/3/0/7/130739614/920674.pdfIn PDF document text
    • https://fogebutozedelig.weebly.com/uploads/1/3/0/7/130776223/povemibujup-kesewifuva-mazow.pdfIn PDF document text
    • https://tiketutowiko.weebly.com/uploads/1/3/5/3/135345961/fotiwudone.pdfIn PDF document text
    • https://gatokoliza.weebly.com/uploads/1/3/0/7/130739470/jezufil-wazajepoma.pdfIn PDF document text
    • https://sizasaligibi.weebly.com/uploads/1/3/4/5/134506534/wuzada_bokewi.pdfIn PDF document text
    • https://nugaginidej.weebly.com/uploads/1/3/4/4/134475369/suxilo.pdfIn PDF document text
    • https://dinuboxisoxim.weebly.com/uploads/1/3/1/8/131857966/391cb1063b3e8d.pdfIn PDF document text
    • https://ramojiri.weebly.com/uploads/1/3/4/4/134443871/8729697.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://uploads.strikinglycdn.com/files/f09d139a-35cd-4ed2-8ad0-26572f480469/vogazuvinanax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e14191d-691d-4399-82f7-b2d41c374a22/sajedejubatowamejixeni.pdfIn PDF document text
    • http://zubipuwaf.pbworks.com/f/what_is_the_main_role_of_warehouse_manager.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8774096a-4e2a-4bdf-b480-166b32055db7/2216177213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43ca43f7-629c-4f5a-8bee-a70b7e3ed3f9/inflated_self_esteem_meaning_in_urdu.pdfIn PDF document text
    • http://tereburokofe.pbworks.com/f/foundations_in_personal_finance_chapter_3_review_answers.pdfIn PDF document text
    • http://lifabukis.pbworks.com/f/13265447853.pdfIn PDF document text
    • http://mupalunava.pbworks.com/f/33315277443.pdfIn PDF document text
    • http://suniger.pbworks.com/f/dell_latitude_e6220_i5-2520m_specs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f6ec3db-7389-4f87-bcca-b0ed02b63153/fujojineri.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_off0000d699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD699 4496 bytes
SHA-256: c7d0168a12280ea42b1187d32d260190c08894a1ba53aa47cf99003a37f8ed8c
font_01_sfnt_off0000e5ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AC 9692 bytes
SHA-256: a4875b72a27123ee3c865d928dedb82217f5aec3e1fc50718e1976e7d85a7bc8
font_02_sfnt_off000106c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106C0 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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