Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d6eb9f8cf048f1…

MALICIOUS

PDF

43.7 KB Created: 2020-11-03 20:46:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c5bb13a026900765ea31449de7ec623f SHA-1: 982d243f8e5cbd51a1f187e1948b3f5c91e7da9c SHA-256: 60d6eb9f8cf048f1bb18ce58aff23145ebe960baf0cd84d43f0c2458a74327db
94 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 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 1.0000

Heuristics 3

  • 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://ggtraff.ru/aws?keyword=typical+word+count+per+page In PDF document text
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/f79b5557db55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451544/normal_5fa0b08375943.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410211/normal_5f99ce6781660.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/523c1cf0-2628-4750-bec4-8ea2d5ddf0a3/bikapobatorozamuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fd273ea-819a-4959-b92f-c2ec6fe75f2a/nemitu.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/fumokulamuxumakomibu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4f6f017-7313-4ceb-be68-939a170ce78c/dutatagudimeja.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/saqa_application_form_download.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/skyrim_night_vision_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/i_know_this_much_is_true.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/77251319805.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac1f6de4-a0aa-4528-a30f-85902ed1ed00/harvest_moon_light_of_hope_walkthrough_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/sigogewu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8802bf6-5baa-4e48-ab60-575b741f9ebb/the_holy_bible_but_gayer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26a1be59-ff87-47e4-a6b4-c70e9fd7921f/38720951834.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/nekazijanikidi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/614d575f-777d-4ec5-9299-0c4b39dd79fd/38630793782.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6024 5088 bytes
SHA-256: 33621b0d6a13142332ce403034ac23f1ab2f80dfe616f8da97e06d66b546942b
font_01_sfnt_off0000718a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718A 9976 bytes
SHA-256: b1b5ce16c4a96905db543b4d35c3d6cefbd5c753d2fa3e9834a3e4764353dc26
font_02_sfnt_off000093d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D7 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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