Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5961b196187d61a…

MALICIOUS

PDF

43.6 KB Created: 2020-08-23 09:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: db153fbaf71ea7bc7ee9487f5ca7ac34 SHA-1: b22abdee5ffe35db3beb06bb31ad633b20198ea2 SHA-256: f5961b196187d61a12ebe9aad94d947833d581188f72fbf2a715290491c719b7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, including one pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Led tv repair guide' and references the tool 'wkhtmltopdf', suggesting a lure to drive traffic to malicious sites. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.
  • 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://ttraff.com/pify?keyword=led+tv+repair+guide
    • http://juzetoz.rmcpsychconsult.com/uploads/1/3/0/8/130874493/sapos-sopiz-zuxutobalibo.pdf
    • http://vodif.bellvillerent-all.com/uploads/1/3/2/7/132712615/8472747.pdf
    • http://files.garmonater.com/uploads/1/3/1/3/131378771/bumesaxonufukabi.pdf
    • http://files.en.msp-lawoffice.com/uploads/1/3/1/4/131406433/mobumikefe_sajupebugodow_vikapup.pdf
    • https://cdn.shopify.com/s/files/1/0434/8225/1421/files/collecting_data_from_multiple_sheets_in_excel.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/foxavoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9959/files/twitch_sub_counts.pdf
    • https://cdn.shopify.com/s/files/1/0433/8375/0821/files/colocacion_de_amalgama_dental.pdf
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/bulopivasefebemesilatu.pdf
    • https://cdn.shopify.com/s/files/1/0451/0436/5721/files/nezatolikotudaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/rirezogunab.pdf
    • https://cdn.shopify.com/s/files/1/0433/6641/6534/files/58813251531.pdf
    • https://cdn.shopify.com/s/files/1/0429/6612/2662/files/bsc_ki_full_form_kya_hoti.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4085/files/99297557839.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/gojetavavagulokegim.pdf
    • https://cdn.shopify.com/s/files/1/0433/9073/0398/files/mirupipilezowifiwe.pdf
    • https://cdn.shopify.com/s/files/1/0434/2513/6792/files/kozegojikomodazakiba.pdf
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/bikunupalezopora.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cae.bin
959a0aee3f92017849cbd314eefb0102a930ef2c2c002481def838b4cb6d9e7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAE 4920 bytes
font_01_sfnt_off00007d81.bin
e74f8c41d7270ae285220128d082001e3f9aae0e18072e2fdc43ff3fee2f0bc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D81 10572 bytes

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