Malicious PDF — malware analysis report

Static analysis result for SHA-256 d030ce02277aeede…

MALICIOUS

PDF

83.4 KB Created: 2021-03-22 07:51:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 35c315579ac7a442081e8c13076a6681 SHA-1: 1145a3a20390a0caded7c799519168efa0e116da SHA-256: d030ce02277aeede56ab0ec04808c44b372a0ab3843215c69e10a928908f6830
156 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 0.9997

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 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.
  • 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://druttle.ru/123?utm_term=synthesis+of+benzopyrylium+salts+pdf PDF link annotation
    • https://zidesefaw.weebly.com/uploads/1/3/2/6/132680856/7131761.pdfIn PDF document text
    • http://g2am2e.xyz/math_171_uclad3ec4.pdfIn PDF document text
    • https://nipituwosaxow.weebly.com/uploads/1/3/5/3/135312928/rawebunegejijit_pudimurosuzumos.pdfIn PDF document text
    • http://texoraw.sportsontheweb.net/sidemen_book_review.pdfIn PDF document text
    • http://woodlesenka.ru/kojuvuzijunifuzumume9nkmq.pdfIn PDF document text
    • http://clientesdkb.com/beauty_and_the_beast_theme_piano_sheet_musiceo45v.pdfIn PDF document text
    • https://kexezesokofu.weebly.com/uploads/1/3/3/9/133986719/xilisimigoxusadera.pdfIn PDF document text
    • http://losinglotterynumbers.com/ninexuvawagexipesizebukij9wkl1.pdfIn PDF document text
    • https://surigogalabilix.weebly.com/uploads/1/3/5/9/135961506/towojobewu_mawuwokexabamo.pdfIn PDF document text
    • http://solusaxisabo.scienceontheweb.net/examkrackers_mcat_practice_tests_reddit.pdfIn PDF document text
    • https://jawuvufos.weebly.com/uploads/1/3/4/8/134856807/pirelafu.pdfIn PDF document text
    • https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/xizopurowu_dixolafobido.pdfIn PDF document text
    • http://copyrightprivacy.site/sat_subject_test_waiting_listic4bu.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/rezugekolaba/abcd_2_movie_song_chunar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f56c443d-84d2-45e0-ae9c-5813437d5b27/nosomogaxulezuzugexawedom.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/guided_reading_activities_ks2_year_5.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/selisifawiwulokava.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ebe1243-6c9a-4d89-9a14-227330e9c748/63015558644.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/how_to_desire_gods_word_in_your_heart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/891f7ab9-7424-430e-ac1f-9578713476b9/14425065929.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_off0000f80f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF80F 5556 bytes
SHA-256: f7d9e036a56f9b28c4dcec367bb1b4d246c60d2f4aa62a7ea721d959b3795d02
font_01_sfnt_off00010abc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ABC 11572 bytes
SHA-256: 1ab0fc319ab57840874a08caac0f7f27be65507a516dde7d0f2a4abc10397c15
font_02_sfnt_off00013258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13258 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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