Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eedec57e029e800…

MALICIOUS

PDF

69.0 KB Created: 2021-01-27 13:17:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 0016bb43e50ece2a080ef80428b328c2 SHA-1: 60a8804e0e5c1e0d54d1e80f531ba2a8039fa6c6 SHA-256: 1eedec57e029e800a0b5a7215fa9a15f17095d5c1f796901e9ae14bdbca218db
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, flagged as a link farm, directing users to potentially malicious infrastructure. The primary URL, 'https://traffine.ru/wb?keyword=electricity%20meter%20number%20germany', is identified as a malicious redirector. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware delivery.

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.
  • 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.
  • 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/wb?keyword=electricity%20meter%20number%20germany In PDF document text
    • https://dasujodiket.weebly.com/uploads/1/3/4/4/134481559/e5432ba1330.pdfIn PDF document text
    • https://cdn.sqhk.co/kitolitik/esLibIO/wamebijidaxabiwila.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/8jd6SpN/noteroget.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/do4lQSY/78891341987.pdfIn PDF document text
    • https://cdn.sqhk.co/zenetofuma/jacDIoA/wizard_of_oz_book_series.pdfIn PDF document text
    • https://cdn.sqhk.co/betewulo/kuShfie/xalelagagafo.pdfIn PDF document text
    • https://cdn.sqhk.co/lewivapawo/hhhjPGJ/lojodosasizapiwosane.pdfIn PDF document text
    • https://cdn.sqhk.co/fusunusol/oifHheV/twisted_sister_songs_in_movies.pdfIn PDF document text
    • http://jufidozotazi.66ghz.com/77315362898.pdfIn PDF document text
    • https://cdn.sqhk.co/fakosopalo/okhhjdT/infinite_lagrange_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwuwigo/7wiivCO/39002828287.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://punegejofuj.epizy.com/64165877140.pdfIn PDF document text
    • http://kebanibaru.epizy.com/19312093487.pdfIn PDF document text
    • http://gegawuwiru.epizy.com/51471078552.pdfIn PDF document text
    • http://xusixuxoribixe.rf.gd/fasilokuxivajigot.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_off0000d10f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD10F 5140 bytes
SHA-256: 2befcff1b4e1407c9be5b8552d439e5428225bbeee8d12bcefa0e4539ba5114a
font_01_sfnt_off0000e284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE284 10596 bytes
SHA-256: c51998e8c1f39ce4fc002aa61900dd57b385481ec16c0d5918a6dcbee9be4e37

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