Malicious PDF — malware analysis report

Static analysis result for SHA-256 abae78bbf0b07227…

MALICIOUS

PDF

67.3 KB Created: 2021-02-23 22:11:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a42ec1ade0ac62a56511a3a0148441c2 SHA-1: 8b63bcd7a4e6f091ce1a1916b1fca630bef3fd78 SHA-256: abae78bbf0b07227582aaba3eee756546db054c51d86165a3ba7ef4c1f7018f3
154 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 0.9714

Heuristics 4

  • 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
  • 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://druttle.ru/strik?utm_term=mississippi+drivers+license+office+gulfport PDF link annotation
    • https://feroxetisilujux.weebly.com/uploads/1/3/1/4/131409167/fd062c308d973.pdfIn PDF document text
    • https://didunomupipopad.weebly.com/uploads/1/3/1/4/131438203/vedukizapuwenegup.pdfIn PDF document text
    • http://instapriz.site/adobe_flash_player_firefox_androidpu4dr.pdfIn PDF document text
    • http://itwow.info/zomudasemixemxrr43.pdfIn PDF document text
    • https://xigeworimejol.weebly.com/uploads/1/3/1/4/131483719/lapobasaxevewidoduro.pdfIn PDF document text
    • http://marketeuro.pro/knox_manage_user_guidevyvuk.pdfIn PDF document text
    • http://thesimplycompleteseries.com/mr_bow_mod_apk_latest_versionpd8fr.pdfIn PDF document text
    • https://webonuru.weebly.com/uploads/1/3/1/4/131437172/7637412.pdfIn PDF document text
    • https://peturenu.weebly.com/uploads/1/3/4/4/134401199/foviko.pdfIn PDF document text
    • http://lastasked.com/6627058615370s87.pdfIn PDF document text
    • http://craftsmansmetics.com/858875393760xlib.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/luropi/beaver_builder_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/gaxisenivawosoxumalu.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/mutagoj.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/lofemo.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/81471892332.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/sonda_vesical_enfermeria.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA33 5176 bytes
SHA-256: f9238a83a59ac864d67d08a13bb64305751380bed1647d3ad351ca267c2900ac

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