Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbddf57bd4c0e54e…

MALICIOUS

PDF

47.7 KB Created: 2020-08-20 15:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f50b24d6610c81a4f54495458a1ef85 SHA-1: b947b75f29ba1cd11558d63aa1b6fb4214f51326 SHA-256: dbddf57bd4c0e54ef8ca0635bddedcd8ea954b2bcfc10399aa6d73f9fec9d302
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=vw+caddy+2017+manual+pdf', which is also flagged as a malicious redirector. This suggests the PDF is designed to redirect users to malicious content, likely for phishing or malware distribution.

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.cc/pify?keyword=vw+caddy+2017+manual+pdf
    • http://files.fusiontheatre.com.au/uploads/1/3/1/8/131871569/bc5478.pdf
    • http://files.iyengaryoga-concord.com/uploads/1/3/2/7/132711954/sabitorimewad.pdf
    • http://files.nmcaahs.com/uploads/1/3/0/7/130775180/efefbcb2e92f390.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/fejex.pdf
    • https://cdn.shopify.com/s/files/1/0434/8618/3577/files/5374808656.pdf
    • https://cdn.shopify.com/s/files/1/0465/5362/8830/files/operation_alamelamma_kannada_movie_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5907/files/tixonuruz.pdf
    • https://cdn.shopify.com/s/files/1/0438/7602/4475/files/51663307950.pdf
    • https://cdn.shopify.com/s/files/1/0437/5989/4680/files/86042957461.pdf
    • https://cdn.shopify.com/s/files/1/0437/0599/1322/files/c_try_catch_finally.pdf
    • https://cdn.shopify.com/s/files/1/0434/4250/3832/files/xexow.pdf
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/android_os_versions_for_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/jurisizopepitojevad.pdf
    • https://cdn.shopify.com/s/files/1/0429/4616/6943/files/guxikukowimawomer.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1781/files/vadanovemasu.pdf
    • https://cdn.shopify.com/s/files/1/0452/8275/4722/files/printable_math_coloring_worksheets_2nd_grade.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdf
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/kujawudalepajerum.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_off00005ab5.bin
e69b664a79270fa9a13fd793810d7eeb92ab1394ab7f6c2531183949ce3c09e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB5 5592 bytes
font_01_sfnt_off00006dd1.bin
7f18b8dfb1d6df2f8c2e4e4540cfeda15b00fced9bf532c43133da0c0ea2b79b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD1 15148 bytes
font_02_sfnt_off00009d1a.bin
2906e013a2c12f8438753706de5a20d0a45d34478d649377d82f29cc76ae0543
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D1A 16108 bytes