Malicious PDF — malware analysis report

Static analysis result for SHA-256 d93dcc2c2fa3176a…

MALICIOUS

PDF

64.6 KB Created: 2021-01-23 15:14:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 00c014d47cdfc98aaf099c643d8d5167 SHA-1: cba81dd274818cb40178134e71273dad01b06efd SHA-256: d93dcc2c2fa3176a2e2715b06ce8ebde2cac6761e84e25e655a972cb94da4dba
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting it's part of a link farm or phishing campaign. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be a precursor to delivering a password-protected payload, a common tactic to bypass gateway security. While no scripts were directly extracted, the PDF structure and link farm behavior are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://jottigo.ru/aws?utm_term=hwy+401+east+traffic+report PDF link annotation
    • https://cdn.sqhk.co/novujarogoga/dhhgjjc/julilasewiruwikuwije.pdfIn PDF document text
    • https://jonenatone.weebly.com/uploads/1/3/1/8/131872225/lesem-pexemimevigixob-lutaj-dudadakuminipi.pdfIn PDF document text
    • https://cdn.sqhk.co/tipapija/qQiedKc/cricket_store_bowling_green_kentucky.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/3Cqibif/smallcakes_cupcakes_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/BgdhjKJ/94471383091.pdfIn PDF document text
    • https://cdn.sqhk.co/duzixulok/iibgjpm/paper_origami_butterfly_step_by_step.pdfIn PDF document text
    • https://baxuzofagebem.weebly.com/uploads/1/3/1/3/131381850/9850243.pdfIn PDF document text
    • https://lomimasexoguxi.weebly.com/uploads/1/3/4/7/134736135/zegozab.pdfIn PDF document text
    • http://xaduwojitodefo.66ghz.com/ditekawilubutibenex.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/kodipopujufipig/tepimorarijunidoreke.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/maxuje.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/ios_9_free_for_iphone_6.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/anoushka_shankar_lasya.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/firestick_remote_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/criminal_case_pacific_bay_mod_apk_allapkapps.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC9A 5412 bytes
SHA-256: 18a44c479bd53090e166ed00e4bdd90e2d919373acc83446a60caae9a37e7260
font_01_sfnt_off0000cf3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3A 11308 bytes
SHA-256: 4caa95e62d41ae0f459b215ff472adab43c36843056babe918e27c390a1c2a44

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