Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d09e86e9f639b3…

MALICIOUS

PDF

85.4 KB Created: 2021-04-06 15:17:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 1ae35a8a726d8edd32cb4ac86b81e3f9 SHA-1: b1cb86358f9e28191351ac0d0165b86382e99eb9 SHA-256: 49d09e86e9f639b36122bd7232ab4ad8792160e9d5ac617c236dc977604171c3
136 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 was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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
  • 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://jumiwimov.ru/aws?utm_term=como+converter+um+documento+para+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423148/normal_60028b6c5668a.pdfIn PDF document text
    • http://berasowugixo.mywebcommunity.org/tovimopufilaku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_60468bcf9443f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481522/normal_605bc99845175.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487409/normal_605d8701c6f0c.pdfIn PDF document text
    • http://kufafukedexepix.mygamesonline.org/what_is_the_equation_to_find_slope_from_two_points.pdfIn PDF document text
    • http://walolexokesufa.sportsontheweb.net/simple_java_game_code_example.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389107/normal_6039794fa72bb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416934/normal_5fee46c625cf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407988/normal_605b50ed36534.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367961/normal_602386a260152.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/como_agua_para_chocolate_personajes_descripcion.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421768/normal_5ff6555acbf9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/21249534430.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/natenutifo.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/lijosafimafazaper.pdfIn PDF document text
    • http://rovizomaguwex.atwebpages.com/wimuzunix.pdfIn PDF document text
    • http://radagosedapisat.epizy.com/osrs_darkness_of_hallowvale_quest_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/64154301080.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/catholic_encyclopedia_volume_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/facebook_carousel_format_size.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/jason_and_the_argonauts_book_1_summary.pdfIn PDF document text
    • http://tedivepi.epizy.com/78160341386.pdfIn PDF document text
    • http://wisexek.epizy.com/barnett_jackal_cable_slide_installation.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E99 5056 bytes
SHA-256: e286394ea88a21b0717da4961547b2ff87486472603e16f53f454c4c8a685c78
font_01_sfnt_off00011fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FBF 12528 bytes
SHA-256: 9d28c963ee350814c6dadfd63ccc0613c607d0f944df1ef3d3cfcf9d323d09ef

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