Malicious PDF — malware analysis report

Static analysis result for SHA-256 abee363474f5ea20…

MALICIOUS

PDF

53.6 KB Created: 2020-08-09 19:31:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bd28ab2c57a001dca669bfc65f134e6 SHA-1: 5f6e549cc0a566414691aec99c6cdbdc292b9bb3 SHA-256: abee363474f5ea20239a7f16ce59ed9f9e57aeff6219809ac1b24a6463871145
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link pointing to 'ttraff.com'. This indicates a phishing or social engineering attempt to lure the user to a malicious site. The file also contains a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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.com/pify?keyword=mikrokosmos+bartok+pdf
    • http://files.shamanushibas.com/uploads/1/3/2/7/132741556/zujelenonorolero.pdf
    • http://files.stevenwojtowicz.com/uploads/1/3/1/4/131452740/mubinori.pdf
    • http://files.ellibrodeespanol2.com/uploads/1/3/0/8/130874433/99eb21de4e7256.pdf
    • https://cdn.shopify.com/s/files/1/0435/3772/7637/files/26188038392.pdf
    • https://cdn.shopify.com/s/files/1/0431/9087/8372/files/understanding_human_behaviour_psychology.pdf
    • https://cdn.shopify.com/s/files/1/0438/4089/7184/files/visepiselegivodofa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/bodmas_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/1522/4996/files/rorebutalopebazepoxonid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285
    • https://cdn.shopify.com/s/files/1/0432/6676/9054/files/joker_graphic_novel_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/kaladesh_draft_archetypes.pdf
    • https://cdn.shopify.com/s/files/1/0447/3788/8410/files/angielski_czasy_test.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/91704999045.pdf
    • https://cdn.shopify.com/s/files/1/0440/3000/1302/files/giloleluwuruvuno.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_off00007ee0.bin
81d6deccb129681b2873eec1efcd97b625e10e8635a60c815bbaafbd7ca093d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE0 5364 bytes
font_01_sfnt_off0000910e.bin
91c6104b91faf3b9f090e727f15c949815870b2438de6a7645231e5a842a65ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x910E 10204 bytes
font_02_sfnt_off0000b433.bin
fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB433 16120 bytes

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