Malicious PDF — malware analysis report

Static analysis result for SHA-256 07e48dd782dac429…

MALICIOUS

PDF

416.3 KB Created: 2021-05-29 08:06:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 74afd622ad44fb3026157689cac17f8b SHA-1: 235f0dca7957df40840d98582742c55c7373e621 SHA-256: 07e48dd782dac4296e23fdb6a31380116ca89c18ded55728ec579eeb250c28f9
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9939

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
  • 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://zajinet.ru/strik?utm_term=lojas+afubra+tabloide+medidas PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4477630/normal_5ff859972da81.pdfIn PDF document text
    • https://ronabamipiboti.weebly.com/uploads/1/3/4/5/134598089/1917222.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378641/normal_5fe0ba3291fb7.pdfIn PDF document text
    • https://pawomasa.weebly.com/uploads/1/3/4/7/134737305/bumox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424666/normal_602a1f3535779.pdfIn PDF document text
    • https://sixopumep.weebly.com/uploads/1/3/4/2/134266524/fovixuwadegusix-sudumakupisuza-xexetabokepob-luteli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460466/normal_603e8fad59f5d.pdfIn PDF document text
    • https://palotuzumi.weebly.com/uploads/1/3/5/9/135991270/dakodewagaxuza-buponi-luripulejimijob-sazaboxusojov.pdfIn PDF document text
    • https://zuwuwuxi.weebly.com/uploads/1/3/4/8/134883554/1585458.pdfIn PDF document text
    • https://manadazalivufud.weebly.com/uploads/1/3/4/3/134358645/12833cf0f975f5c.pdfIn PDF document text
    • https://dituwugo.weebly.com/uploads/1/3/4/2/134235792/degosoj_sewif_xijezimofizop.pdfIn PDF document text
    • https://vupudotexim.weebly.com/uploads/1/3/4/8/134884591/5364935.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/998ab62d-7375-464d-b4ec-d9e19d3542eb/what_is_knowledge_acquisition_and_knowledge_deepening.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4f61f31-2c2c-400d-8123-4dc792d3015a/what_is_push_on_moultrie_mobile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b343d1c5-f747-4766-9fdd-ba03c6caa27c/momekaserewuboteruj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3019c97a-1ba7-4e6b-a85c-532f05459983/roles_and_responsibilities_of_android_developer_in_resume.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_off00062e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E2D 5208 bytes
SHA-256: 0aaf8da8823a1092c249e485b32dde5f896954aace0fdd2ac7b9915b9871cab8
font_01_sfnt_off00063fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FD0 17200 bytes
SHA-256: 85970d6052322f1a118cc625811334d50df702875a66b1c2574f93d660bfe536

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