Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf2fc8389642a30d…

MALICIOUS

PDF

56.6 KB Created: 2020-08-11 16:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64c47e344d77d24c9251428271c6efbb SHA-1: 6d0305bf4149e54d7f83843d6aba35e38032915b SHA-256: bf2fc8389642a30d723c9b926a7d0e8e81d4e9c5fa991fe6b37ff52edf9b14bb
140 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=editing+pdf+documents+on+mac'. Additionally, a heuristic indicates a link farm with numerous external PDF links, suggesting SEO manipulation for traffic generation. The document body itself contains an instruction to enable editing, a common lure to bypass security measures and facilitate the redirection.

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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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.ru/pify?keyword=editing+pdf+documents+on+mac
    • http://mozirunok.carissajoyrobinson.com/uploads/1/3/1/6/131606490/zokogepusesovusoz.pdf
    • http://files.zenparadisespa.com/uploads/1/3/0/7/130739549/majazixa-ximolimi-zimevogalufim.pdf
    • http://files.nyimafoundation.org/uploads/1/3/0/7/130776489/d1f8e801fb62d.pdf
    • http://files.promalvacations.com/uploads/1/3/1/4/131437276/tudisomikiwil-witivusexefunu.pdf
    • http://files.florenceroadmarket.com/uploads/1/3/0/7/130738943/a63a587e6d8f9.pdf
    • https://cdn.shopify.com/s/files/1/0430/9689/9745/files/25393643529.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/mekunazo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/joxojufepes.pdf
    • https://cdn.shopify.com/s/files/1/0440/8321/6549/files/jegujubigakuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobuwavidojanunixi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5353/0782/files/80101876051.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/noserejegedegi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mazimuzoxoku.pdf
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/pewiripusefo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/ielts_speaking_cue_cards_with_possible_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2560/files/tupifilojaker.pdf
    • https://cdn.shopify.com/s/files/1/0434/7786/0516/files/rosizevavi.pdf
    • https://cdn.shopify.com/s/files/1/0440/1355/1781/files/biwinebumidalogowomexo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000089cd.bin
213b0ded20e814fd8f62e9af1ddc4e59b06b682a7879a002bdab334bffb31fef
pdf-font-stream PDF embedded font (sfnt) at offset 0x89CD 5304 bytes
font_01_sfnt_off00009bce.bin
1c15ec6db1ee0c45f5b30a0076437aba4d9eaee0b68f7c4c3b985cd7c98fafb8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BCE 10128 bytes
font_02_sfnt_off0000bea6.bin
4ff8de031e26ee870ed4622d57df4318a760d272b7a3006b3935db219ef5d477
pdf-font-stream PDF embedded font (sfnt) at offset 0xBEA6 16460 bytes