Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f981d84198c8ef5…

MALICIOUS

PDF

89.1 KB Created: 2021-03-31 17:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e41e64209dc116cee739662576d33913 SHA-1: c9b7be24439f68f151b360cad19a3eb8cc2b3bda SHA-256: 2f981d84198c8ef541265d727f4a9e20301ac86bae9ed2d92f41a9036b0eced2
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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.
  • 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://jumiwimov.ru/123?utm_term=avery+dennison+conform+chrome+vehicle+accent+film PDF link annotation
    • https://cdn.sqhk.co/susojareb/iagj3gj/46729204169.pdfIn PDF document text
    • https://cdn.sqhk.co/wovenebi/jhchcjc/16748183487.pdfIn PDF document text
    • http://dipenoguzel.sportsontheweb.net/73833938534.pdfIn PDF document text
    • https://cdn.sqhk.co/xidafigutoxa/WhdNiiR/fibijixu.pdfIn PDF document text
    • http://mozaduz.mygamesonline.org/magic_chef_ice_maker_manual_hnim27st.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/loneminovu/daseke_annual_report.pdfIn PDF document text
    • https://d64d5b41-a66a-4b78-b87f-0feaf8e9cf76.filesusr.com/ugd/cf1aed_cbcfd7e50f744baa8432f11645d49e1d.pdf?index=trueIn PDF document text
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_674f5c493b2144f9b56a27b46c92cb1f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bejeseja/58166992983.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44eede84-3282-4b65-a64e-de240cefe4c6/rhino_tutorials_architecture.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/ankle_boots_platform_heel.pdfIn PDF document text
    • https://80c93ba6-74df-4afb-9852-3a83eaba20e3.filesusr.com/ugd/4cf28d_169236ed7f324a6dac4266f097eedec0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/04254f6e-5160-4df9-9817-264fe496774a/44431244388.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/are_polar_bears_increasing_or_decreasing.pdfIn PDF document text
    • https://f1c0478e-57b3-422a-b8eb-433964b677d2.filesusr.com/ugd/16c17d_e77e3a3128f04e7c8aeec76038f2376c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/how_many_pages_is_in_the_book_11_22_63.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/kindle_formatos_que_lee.pdfIn PDF document text
    • https://d1897088-ef6e-4b60-8303-910b4b551fc1.filesusr.com/ugd/4cfbbd_eabb92d8ecc64dab815280c3fa0e26f6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c79eed3-e5be-451b-99a9-4a9b58780e61/position_of_the_day_playbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41c471ea-fd28-452e-9394-d23bf7d5e1f2/walking_dead_comics_new_world_order.pdfIn PDF document text
    • http://dolojivek.onlinewebshop.net/29833379053.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/certificate_programs_in_health_information_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01078d21-4775-4c86-b9ab-0549fa2ee5b9/24280369945.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_off00011ab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AB1 5412 bytes
SHA-256: 3617de251e1cd6eeacb79b471eabe765673f05bc9237519b138ad2de94353a1f
font_01_sfnt_off00012d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D00 12336 bytes
SHA-256: 75f37662b4d2417c63802d29819a83d9679bc82d62c0cd877bcc9527ade4550c

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