Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d7c69204bb0d171…

MALICIOUS

PDF

85.7 KB Created: 2021-07-22 03:17:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 13f4764e0c0994ccd1a1682435668ec2 SHA-1: 63b674fe38251527c325875ea8f7ac8886f5d48c SHA-256: 5d7c69204bb0d171a4398a90fd2f8909e0af2cef68da99bb0f0993ccf9f40b03
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised websites, likely to facilitate phishing attacks or distribute further malware. The presence of multiple links on disposable or compromised hosting suggests a coordinated effort to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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 http://whitefamilyreunion2020.org/clients/4/4c/4c64578d40ee165aaf486c9a1ef3309b/File/kelulitexuvojogupa.pdf In PDF document text
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/cca6e2559c138b087659e24d3607c9bf/88134984207.pdfIn PDF document text
    • http://ahkkpcm.org/userfiles/39026954013.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab01c900ad1---fukuvamowolezerekanaba.pdfIn PDF document text
    • http://macphersonproperties.com/clients/876251/File/zudisejakepejijumelin.pdfIn PDF document text
    • http://starlightcelebre.com/clients/4/43/43e9139217482d7666ce300faf566241/File/73656800603.pdfIn PDF document text
    • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/8924429b3fa689f5922d31ea714b40f1/75169100236.pdfIn PDF document text
    • http://cdn.eagle.mn/uploads/userfiles/files/56572009879.pdfIn PDF document text
    • http://www.radio-kum.si/data/files/lonetafi.pdfIn PDF document text
    • http://chamdure.com/DATA/files/riviriwojomabololani.pdfIn PDF document text
    • https://kisikana.hr/userfiles/file/33695968565.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b4025d76b---fojusilegemorojutomup.pdfIn PDF document text
    • http://www.derbysignandgraphics.com/uploads/file/5943023889.pdfIn PDF document text
    • https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f36dbd46ce---modajumozamute.pdfIn PDF document text
    • https://monyetjoget.com/contents//files/79165317697.pdfIn PDF document text
    • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/4ad1e31e60602291643036b3b1982921/maxopifokuposokide.pdfIn PDF document text
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098bd4c6e0f0---41649344066.pdfIn PDF document text
    • https://thefertilizergranulator.com/d/files/vemonitizof.pdfIn PDF document text
    • https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/10lsqi5tdvl4k7lfj0lafb56h6/rexumavekiloretot.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/hjieutda0m4k1hbvh5gm3fu8a6/67611787276.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16083da9754567---91162687385.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/496d1e1383eea7ab6ac69af5a5986411/bopijoxuwibogewexudufo.pdfIn PDF document text
    • http://chargers68-50th.com/clients/3/3d/3dd154274af4887fbe356f6dcfc18689/File/13082634149.pdfIn PDF document text
    • http://tofuyatogo.com/uploads/files/tawusuwuperolovaxonafi.pdfIn PDF document text
    • https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/09f3478ac18bfdce2353fe8fd9a8d9b1/69117002932.pdfIn PDF document text
    • https://greenfuturevietnam.com/Upload/files/lizopowinaxumixone.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=summon+nature%27s+ally+ivPDF 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_off0000ea45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA45 17028 bytes
SHA-256: 7ffbad1afc95f1396fc9ac9d002007b3c407ae9c69385001aaa6f245969ef3cd
font_01_sfnt_off000116bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ED6 10656 bytes
SHA-256: 055e3195a2db19a4e3faf3526680891749423ad213d4ba8257c44b6a09c7981b

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