Malicious PDF — malware analysis report

Static analysis result for SHA-256 69f08108985a84c7…

MALICIOUS

PDF

77.5 KB Created: 2021-03-16 21:43:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 3b8098afc7f9cfcaded4d5be1d016746 SHA-1: 5fe5c5c4bf33eecdc3ea83fa50d6a579c3bf81af SHA-256: 69f08108985a84c722c80f449b5079a1ddbebd18d342573cf9a5bf468defe47d
166 Risk Score

Malware Insights

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

This PDF file is classified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to suspicious or unknown domains, suggesting it functions as a link farm or phishing lure. The PDF_SUSPICIOUS_LINK_LURE heuristic specifically highlights invisible links to suspicious domains, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://fokemale.ru/wix?keyword=msp+hack+download+apk PDF link annotation
    • http://iqecoportal.ru/statistical_mechanics_pathria_solutions_manualtahgj.pdfIn PDF document text
    • http://ig-supportcenter.xyz/56325213140q9ip9.pdfIn PDF document text
    • http://pevelofuvewozi.22web.org/mulonel.pdfIn PDF document text
    • http://umkatrade.ru/arkansas_driver_test_schedulejum0v.pdfIn PDF document text
    • http://docita.fun/spina_bifida_typesrx5vu.pdfIn PDF document text
    • http://erogan24.website/puertas_y_puentes_ligeros_mod_para_mnlh4k.pdfIn PDF document text
    • http://sedouche.xyz/how_to_become_a_general_contractor_chicagoh6mnk.pdfIn PDF document text
    • http://instgramcopyrightdispute.com/what_classical_musicrbunl.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/tidigudetefumof/who_created_the_literary_canon.pdfIn PDF document text
    • http://kugofabafomozo.epizy.com/calculo_de_rumo_e_azimute_topografia.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/81389287250.pdfIn PDF document text
    • http://sesumedafe.epizy.com/95413043309.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/guilty_crown_opening_1_full.pdfIn PDF document text
    • http://bepujegixu.epizy.com/sisoduwarodotubesoroboji.pdfIn PDF document text
    • http://ligexaxo.epizy.com/ableton_live_suite_crack.pdfIn PDF document text
    • http://vogizopenukese.epizy.com/50446267070.pdfIn PDF document text
    • http://kosuvoz.epizy.com/teamviewer_portable_11.pdfIn PDF document text
    • http://nipuvaxakaxini.epizy.com/42710951832.pdfIn PDF document text
    • http://gazepofibugas.epizy.com/what_are_the_steps_in_planning_and_explain.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/garig.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/kaberoda.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/esl_ordinal_and_cardinal_numbers_worksheet.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_off0000e33a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33A 4768 bytes
SHA-256: acdbfc4cb35b13c9accbae50024d23b8c83e8459d9eaea4a9cccbac8e52c675f
font_01_sfnt_off0000f369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF369 12304 bytes
SHA-256: d37cc2036e55a2d939e0b67e49f1d7f232a5916b260950fa10f7708fb56dbc49
font_02_sfnt_off00011aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AAD 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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