Malicious PDF — malware analysis report

Static analysis result for SHA-256 02575a17e2a92fee…

MALICIOUS

PDF

84.5 KB Created: 2021-08-19 14:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 93236d34122e1da62dd77183bfc76001 SHA-1: 53a84234966a80aa6af83793e44e7552f5b27d5c SHA-256: 02575a17e2a92feeb139bf9063642fc7513db6484f5293d742913e4553f5319a
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF was flagged by ML classifiers and ClamAV as malicious. It contains multiple links to potentially compromised websites, suggesting a phishing or malware distribution attempt. The document also explicitly instructs the user to disable security software and provides password instructions for an archive, indicating a multi-stage attack designed to bypass security controls and deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 9

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/d9fbdde3203d8d6a7460606000593b23/tigajusokonomu.pdf In PDF document text
    • http://ehs1958.org/clients/73155/File/tedafulokuluditupofud.pdfIn PDF document text
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e6ad6f5d0cf---24533993651.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a46dcb5bf---9050870841.pdfIn PDF document text
    • https://geneolock.com/locktactyuma/userfiles/file/gagokiwiropot.pdfIn PDF document text
    • https://yenhuy.vn/upload/files/41366525814.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/d582oe5lmoj9dcgtoro6v2bo26/renuvuramisenali.pdfIn PDF document text
    • http://ventima.ru/userfiles/file/20968347616.pdfIn PDF document text
    • http://gammatradings.com/userfiles/file/bisabimelaxobolukerude.pdfIn PDF document text
    • http://oawebserver.com/piceditor/file/pifawalutixukili.pdfIn PDF document text
    • http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/lanozofakirowibukemi.pdfIn PDF document text
    • http://jtylek.pl/Upload/file/xipoxajiwan.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4f5e5be23---beguvux.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a8f966042058f76fe76a1dd11b33dac5/80402863458.pdfIn PDF document text
    • http://faulkfamilync.com/clients/c/cc/ccb94402b1eed20a0583117be0c0b506/File/vibujubabe.pdfIn PDF document text
    • http://vikohasanfiber.com/upload/files/65633068517.pdfIn PDF document text
    • https://imagebeaute.fr/userfiles/file/rijekegalirapaguwu.pdfIn PDF document text
    • http://csc0535.com/userfiles/file/20210703100238_zw49ra.pdfIn PDF document text
    • http://for284.org/clients/7/74/7452b259410349f427184d5eaa48bde7/File/paxatirewijelanesexivun.pdfIn PDF document text
    • http://all-pass.com/folder/editor/file/fuxikutekinewumobisovevi.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad78b7979a---dunabowejidixizuxinon.pdfIn PDF document text
    • http://say-international.eu/userfiles/file/305867376.pdfIn PDF document text
    • https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/2e779f016a2d7172c8860130c2053074/47094984178.pdfIn PDF document text
    • https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/39d50b31d01c8f1a8790a904d4626207/xenef.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607acd8dad6bf---wumazolisa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=epson+resetter+adjustment+program+free+download+zip+filePDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE457 17708 bytes
SHA-256: 176df759f49f48ef759761caecdc57760c024548a5acc786adf58fada5a70a49
font_01_sfnt_off0001122d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1122D 11200 bytes
SHA-256: a7a0d45a46c61b75160df08fc0864aa67181bca993c5a42b15c66cffcbc7125c
font_02_sfnt_off00012c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C3F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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