Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e1eeacfba41ee6…

MALICIOUS

PDF

66.6 KB Created: 2020-11-16 22:08:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: fa2251d46480e4051fd769ad0019a7b3 SHA-1: c3aff7a81eb409c34a30f41f7559f2996b017d55 SHA-256: 60e1eeacfba41ee626efc7920916b6c59fd94db8c3d5459e9579edb294753350
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document exhibits characteristics of a callback phishing or tech support scam, as indicated by the 'SE_CALLBACK_LURE' heuristic. It contains a mass of external links, suggesting an attempt to direct users to malicious or deceptive content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into calling a fraudulent support number. No scripts were extracted, but the presence of numerous external URLs points to a phishing or scamming operation.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://trafficel.ru/123?utm_term=refrigerator+compressor+not+running PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452217/normal_5fa1cde46fcc5.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/2730194.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485809/normal_5faac2b06fcd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369343/normal_5f891a979dbb6.pdfIn PDF document text
    • https://zutafemaz.weebly.com/uploads/1/3/4/4/134478566/b1eed828fc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376598/normal_5f89d4d72973a.pdfIn PDF document text
    • https://gexeperi.weebly.com/uploads/1/3/4/3/134348656/wesufuwejezefa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374196/normal_5f90b9468dbde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488323/normal_5fad781035202.pdfIn PDF document text
    • https://dutajidadu.weebly.com/uploads/1/3/4/7/134730474/c62ab695cfd.pdfIn PDF document text
    • https://fojejebub.weebly.com/uploads/1/3/4/2/134265807/c3817d30.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e18f5631-fbf9-4d7c-980e-03494f2d1e77/derecelendirme_lei_rnei.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_off0000c3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C0 5312 bytes
SHA-256: 8a2360b88387782ab995e19e766e78881d2102707722d74ae26565db647f089c
font_01_sfnt_off0000d5c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C5 12344 bytes
SHA-256: bd38422af91edd2d5d0ab724d92c699ff6667bef690712f2febc3eae8907c814

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