Malicious PDF — malware analysis report

Static analysis result for SHA-256 48655f9625494016…

MALICIOUS

PDF

44.7 KB Created: 2020-08-18 16:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4452bad7202a5d86734184f528ea00aa SHA-1: e82ba5cfef883bee8a3a280f89ea4054c00ee328 SHA-256: 48655f9625494016f9bc273c1d743fd9bed2b9262ae175a540c4f3864b3f62d8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, with one specifically identified as a malicious redirector. This suggests the document's primary purpose is to direct users to potentially harmful websites. The presence of a malicious redirector at `https://ttraff.ru/pify?keyword=kinemaster+chroma+key+file` is a high-priority indicator. No scripts were extracted from this sample, limiting further analysis of its behavior.

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.
  • 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.
  • 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=kinemaster+chroma+key+file
    • http://files.fitnesssavage.com/uploads/1/3/0/7/130739379/tudibokuden-vazatopikuzikaj-muwel.pdf
    • http://files.valutazioni-gioielli.com/uploads/1/3/1/6/131636988/derazop_zotaroganekokap.pdf
    • http://files.xoxomadds.com/uploads/1/3/0/7/130775434/8974321.pdf
    • http://munijoj.justicecollaborativeatcornell.com/uploads/1/3/2/3/132303382/nomes.pdf
    • http://nokerowal.natalieasport.com/uploads/1/3/2/3/132302815/runejubukilat-kumibif-towepasu-fuwunuwegi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4052/8792/files/fixifajajutaresabebune.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/76883752597.pdf
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/wifoximanesefebufite.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7383/files/cultivos_agroecologicos.pdf
    • https://cdn.shopify.com/s/files/1/0432/8803/5486/files/ridobaled.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/computer_system_architecture_morris_mano.pdf
    • https://cdn.shopify.com/s/files/1/0432/4504/3880/files/34706264625.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/lodakosogexipijewob.pdf
    • https://cdn.shopify.com/s/files/1/0433/6625/2703/files/conjunction_definition_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/amazing_grace_jazz_piano_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/7971/9330/files/udi_u818a_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/phylum_arthropoda_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0431/7685/3664/files/gulorejavodutamedaloronef.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gekubamunanapomokavonata.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_off0000716e.bin
796cd0c78bcf1b548bbdc83381e42baa92eda706010aedbe5ffb7292a2d90cbb
pdf-font-stream PDF embedded font (sfnt) at offset 0x716E 5256 bytes
font_01_sfnt_off0000831d.bin
a074016a4c7938a116ff5a45b3ca39797a3b3ec588b96ce0981ba774b612bd50
pdf-font-stream PDF embedded font (sfnt) at offset 0x831D 10268 bytes