Malicious PDF — malware analysis report

Static analysis result for SHA-256 e193048566196f38…

MALICIOUS

PDF

78.4 KB Created: 2021-01-29 06:41:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 06b4fa8f195f1d097313ffa8aed9551f SHA-1: 0572db407c2da469ea6ae4476013bcd019e20620 SHA-256: e193048566196f387d2ae2eb179995c8aec40f7fc550382afc0b0b21048fac57
156 Risk Score

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 0.9998

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://baarspo.ru/aws?utm_term=gage+r%2526+r+excel+sheet PDF link annotation
    • http://creditstar-kabinet.com/five_nights_at_freddy_s_gameplay_explainedrukzp.pdfIn PDF document text
    • https://finuvowevemez.weebly.com/uploads/1/3/5/3/135397693/nurosipave.pdfIn PDF document text
    • http://deflecfcvy.best/base_smart_home_systemsjkws5.pdfIn PDF document text
    • https://xizuxikeg.weebly.com/uploads/1/3/0/7/130740292/409212.pdfIn PDF document text
    • http://hookup753.fun/scandalli_accordion_modelsw905f.pdfIn PDF document text
    • https://ludugekokokak.weebly.com/uploads/1/3/5/3/135313409/938448.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/bagisi/nuritinupabasemol.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/radical_innovation_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/android_programmatically_update_app.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/dsssb_je_answer_key_6_19.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/56211093575.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/99068722490.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/9761324820.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/asch_conformity_experiment_lines.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/aparejos_de_izaje.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/32531225675.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/pajipi.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_off0000f645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF645 4672 bytes
SHA-256: 1361c3dbcb1cc8fc427a9b4d379440e9f3c7e0dcf65282462e26e23951023552
font_01_sfnt_off0001063e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1063E 11272 bytes
SHA-256: 869dce27809a2577d469a5b7a699236bc09bfa6020504fb7f430b51ce07a0a0a

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