Malicious PDF — malware analysis report

Static analysis result for SHA-256 f206cbb7819d9223…

MALICIOUS

PDF

64.3 KB Created: 2020-11-19 21:06:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5ef76ab0c70277d92c4dddfe48cd9b70 SHA-1: 976d8124e1c4b1244547f442aea93800daf977cf SHA-256: f206cbb7819d9223e6cd40d65849046907b7a910fb288e221731eae5570e82d9
174 Risk Score
Tags
free-cdn-ebook-manual-lure

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. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/123?utm_term=athens+state+online+login In PDF document text
    • https://cdn-cms.f-static.net/uploads/4454054/normal_5fa6396fe48e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382186/normal_5f9b8aee69d9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f89dc18c97bf.pdfIn PDF document text
    • https://gonupedifi.weebly.com/uploads/1/3/4/5/134524362/pegizilu-xofokef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376602/normal_5f8a75a2683b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413838/normal_5f9c5c0c536cc.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/3e3e0e32-e6be-405a-806b-dac88ad7c3cb/arduino_experimenter_s_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/72437044367.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/15878662468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a238007-1ce5-4550-a59d-07d0da9babbe/8791669144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/631ab4f7-45f6-40b3-9d79-65f94f0a89f6/math_101_niu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa369308-4916-4cfd-bcd3-4ed9e7571dac/gonezoroduguwotuzusalar.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_off0000bfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFA2 4840 bytes
SHA-256: 3951f8fabcd54c4a412346a2fcbebe70bb0c4c5cf1c526a493cde7174a40135e
font_01_sfnt_off0000d016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD016 10740 bytes
SHA-256: c2ec213538894ef82bc8b4a4aeef382d0ac8826a69fa315533887fb56de9e75c

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