Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2bda6201f06248…

MALICIOUS

PDF

57.7 KB Created: 2020-08-16 22:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d47d0bf4176a5002365b9e55a09cf5a0 SHA-1: d5506b9dfc6883ed6baa948cd8a8233296878640 SHA-256: 3a2bda6201f06248accabf14d808fbbe398cc9583449fac9d0628ada35318384
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract traffic. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The primary malicious URL identified is ttraff.com, which redirects to a page related to 'english christian songs album'.

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.com/pify?keyword=english+christian+songs++album
    • http://fobabitaw.unwindmassage.net/uploads/1/3/0/9/130969060/183d812f4882.pdf
    • http://nugeba.gad-abouts.com/uploads/1/3/2/6/132682663/kogoxajosoj.pdf
    • https://cdn.shopify.com/s/files/1/0448/4674/3709/files/adding_and_subtracting_fractions_word_problems_6th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuxojusi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6555/7671/files/bed_sheet_manufacturers_near_me.pdf
    • https://cdn.shopify.com/s/files/1/0450/2913/0404/files/dejuvosuwefi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4411/8428/files/translate_english_to_afrikaans.pdf
    • https://cdn.shopify.com/s/files/1/0432/3577/0535/files/malwarebytes_activation_key.pdf
    • https://cdn.shopify.com/s/files/1/0434/9765/2376/files/minujemezilosanegesanado.pdf
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/kiniwujevage.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/shankar_ias_environment_and_ecology_notes.pdf
    • https://cdn.shopify.com/s/files/1/0450/3299/7022/files/bekebepuv.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_off0000a55b.bin
015cf8a24fc94920570ead365ca72978ad2d52e339ea34051b116e96be57be47		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA55B 5308 bytes
font_01_sfnt_off0000b738.bin
7b00e3b460ac52a0a8e2879e6e4cf9db54d1acd14705962dd770f4bba91ded24		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB738 10120 bytes

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