Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed0bd4a45e1929f…

MALICIOUS

PDF

67.6 KB Created: 2020-11-25 15:03:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 11e48f44e73e66061ec8b7884749ef0e SHA-1: d9eb6f2c993c34120b48fd8fab9178a3f15cf620 SHA-256: aed0bd4a45e1929fe35dc251080b3be3988c94c81eff8fdbb33f6c25122d70b3
154 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. 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 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
  • 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.
  • 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://gettraff.ru/aws?utm_term=access+to+information%2528+a2i+programme In PDF document text
    • https://cdn-cms.f-static.net/uploads/4448538/normal_5fb5de0aa79be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421970/normal_5f9e9b59918f6.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/zumifoxenifu-ganamodegunebo-tusekib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368976/normal_5f9b6649077b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370064/normal_5fa8dad7e843a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464053/normal_5fb5ef457fabc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470982/normal_5fb6d0c2abdcf.pdfIn PDF document text
    • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/dodibadunejonus.pdfIn PDF document text
    • https://xusawoji.weebly.com/uploads/1/3/0/7/130739635/wogov_wuvexalotez_disusexetoputud_dafomisosedasi.pdfIn PDF document text
    • https://demogevofowa.weebly.com/uploads/1/3/4/6/134608938/jukeronibo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386089/normal_5fb5385fc62d8.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/6f4b0220-8bc5-4981-8e14-eeff37a7151f/fundamentals_of_algebra_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecb1eff6-98d0-4b37-bb5a-a332bf3aba91/bitodamakebasun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a09d731-ec57-45d1-b155-97541a2c6f09/lipo_cavitation_treatment_prices.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a958343-d43a-4fef-b6e9-1722af7ccafa/love_nikki_guide_9-6.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA88 5504 bytes
SHA-256: 89cc27c163ddd094651066e84efad31bcd1c2cefc97fe165bc3c442c84de29d7
font_01_sfnt_off0000cd37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD37 4672 bytes
SHA-256: 5581b1e189c13368846844c655097e23b6c69d6f38aed4c87263ea75f286e011
font_02_sfnt_off0000dc4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4C 10676 bytes
SHA-256: 95267e41431594269a3b6f8357ece9feddf769609e71d2ce15ff603e95e9c1a6

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