Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80c906f5fd43f01…

MALICIOUS

PDF

69.8 KB Created: 2020-12-21 19:43:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9acfad7f7a9f088ad71d8ae1f57f4ee4 SHA-1: 9e1788fca763789a953fd1b05fe85edc5e8a42a2 SHA-256: d80c906f5fd43f01273997ffe8c413d1b141057cf2792595aa1666ac3e8da4ed
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'traffine.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to pregnancy infections, combined with urgency language, to trick the user into clicking the malicious link. No scripts were extracted, but the presence of external URIs and the nature of the detection suggest it acts as a dropper or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffine.ru/strik?utm_term=most+common+bacterial+infections+in+pregnancy PDF link annotation
    • https://tamagokevalagir.weebly.com/uploads/1/3/0/7/130776783/210639.pdfIn PDF document text
    • https://sifizebutu.weebly.com/uploads/1/3/0/8/130814914/17cd4038253e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382197/normal_5fc08b1d093f9.pdfIn PDF document text
    • https://xexiwimelogodit.weebly.com/uploads/1/3/4/5/134593193/rilekesitalew-luperuditemab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416150/normal_5fb31ed25c0bd.pdfIn PDF document text
    • https://bavejojonosepes.weebly.com/uploads/1/3/1/3/131380601/jejezutesuvi-tulevipisa-wukotomudali-dufadenel.pdfIn PDF document text
    • http://</http:&gtIn 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/54a68e58-9fed-49ff-a71e-81b9be96bcbe/kovexakexufe.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/i_love_you_telugu_song_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/8268468.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_off0000d314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD314 5580 bytes
SHA-256: bad66d98f0ce0d406210c28870a3cae01268daf4c83b6c011a227299061f0d85
font_01_sfnt_off0000e60d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60D 10744 bytes
SHA-256: fd7ddbc81d7a83492d3a1854172e6d08847a7d44ab2ce7d18db1558a743d2699

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