Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5ff886f362dc422…

MALICIOUS

PDF

42.2 KB Created: 2020-08-13 19:30:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf2d1dc33ca786281f034a6cb9d576f2 SHA-1: 3cac0212038e34b58c3e19c1b00ad421a0d1bf25 SHA-256: d5ff886f362dc422346e885b6d42ca7085bb86c5c5cc59e2a4abcb4b7e3eddda
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector to malicious infrastructure, disguised as a catalogue. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL leads to malicious content. The presence of a download button lure and embedded URLs further supports a phishing or redirection attack. No scripts were extracted, limiting the analysis of the payload.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=oriflame%20june%202019%20catalogue%20pdf
    • http://podajewo.eastwestmassagestudio.com/uploads/1/3/2/6/132696323/9196860.pdf
    • http://files.fuschiamoss.com/uploads/1/3/1/4/131453645/46d81b791d4.pdf
    • http://files.boefamilytravels.com/uploads/1/3/1/6/131636845/98c3eed99d78.pdf
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/15449387141.pdf
    • https://cdn.shopify.com/s/files/1/0430/6590/1210/files/mupetizimoneku.pdf
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/15659089248.pdf
    • https://cdn.shopify.com/s/files/1/0432/2040/2343/files/95270834347.pdf
    • https://cdn.shopify.com/s/files/1/0432/1250/5243/files/1221968576.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/32452414.pdf
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/nanelikoxofagexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1381/6995/files/alter_ego_a2_cahier_d_activites_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/16425343841.pdf
    • https://cdn.shopify.com/s/files/1/0429/4384/0412/files/python_programing_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/mastering_elliott_wave_principle_constance_brown_free.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_off00005f93.bin
7dacee9e597020576bbb2fa8cca965070f5774a68f8857a6120f866aaa14285a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F93 5884 bytes
font_01_sfnt_off00007390.bin
4a2c51829c3755d4168d62eebfd7c36fd8a107fbc8782f5b6890d98b0113e717		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7390 12652 bytes

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