Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b40a1601333092…

MALICIOUS

PDF

73.1 KB Created: 2020-11-18 06:30:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: fab6bdd12ebdd384c2056ebcf1c56db6 SHA-1: b278a035c36bf957c01149ef65fa8b6aa8ccd5be SHA-256: 07b40a1601333092687dee234621120ccb00c901002521f3a83a3edac697825e
96 Risk Score

Malware Insights

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

The PDF contains numerous external links, a technique often used to redirect users to malicious sites. The heuristic PDF_SEO_LINK_FARM specifically indicates a large number of external links, with the primary malicious link being to 'traffnew.ru'. While no scripts were explicitly extracted, the presence of embedded PDF objects and external URIs suggests an attempt to exploit PDF vulnerabilities or redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://traffnew.ru/123?utm_term=media%252Fsociety+industries+images+and+audiences+5th+edition+pdf+free PDF link annotation
    • https://zotorakiv.weebly.com/uploads/1/3/0/7/130739478/zidopilagiliw.pdfIn PDF document text
    • https://suxomaloki.weebly.com/uploads/1/3/4/5/134598925/butofa-wibewomekepam-lijujob-gefomedulozorot.pdfIn PDF document text
    • https://wozuwonasanava.weebly.com/uploads/1/3/1/4/131483955/bajorare.pdfIn PDF document text
    • https://walisisatar.weebly.com/uploads/1/3/4/5/134576301/feropuwon.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/fojaxexino/bible_niv_download_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f453d30d-44e2-4ae8-9c2a-556e36c4f9d9/wheel_plow_ancient_mesopotamia.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/ravixenonomamate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4abe079d-d179-43d5-9445-f08406ae526d/46916678649.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/48788625887.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07ae5e3a-c944-48d7-a81b-1fb02b7d72a7/sports_head_soccer_2014_world_cup_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c5b1155-664a-42fc-a679-94a4455f25e0/jufebun.pdfIn PDF document text
    • https://s3.amazonaws.com/tefelaj/catz_5_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/luresimosip/volunteer_mortgage_loan_servicing_email.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1223b65-e022-4381-944f-5d84fcefcbdd/does_lidia_bastianich_wear_a_wig.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_off0000df1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1D 5804 bytes
SHA-256: 9606dae106f082c72a827f30955347b6d01df127dbfb93623fd2acefb2eea05b
font_01_sfnt_off0000f2db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DB 10520 bytes
SHA-256: 5a469b14509feba77c735fcf27ef0f7c763a52a07e1fb9d6acc5bd0b548421e4

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