Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a55fdba844284ab…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 21:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 735b58be2fd4d5ab2bc7159bc36da118 SHA-1: 713bc45a3964e8f19e88a6c450c4d17825ec83b0 SHA-256: 2a55fdba844284ab29f11a07c390fb94bd94393546c31ae3805235a0b5c88f7f
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic identifying a redirector link to 'ttraff.club'. The document body also contains the same redirector URL, suggesting it is the primary lure. The file is likely a phishing document designed to redirect users to malicious content.

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.club/pify?keyword=2pac+hail+mary+mp3
    • http://files.saikatahamed.com/uploads/1/3/1/4/131453061/fuxapebajolojov-pavidatinonobet.pdf
    • http://files.rendonmediation.com/uploads/1/3/0/9/130969932/vadizitutilil-rebogukuj-kavavolo.pdf
    • http://files.hausofv.com/uploads/1/3/1/8/131858592/rululirukidolukeg.pdf
    • http://pilugoja.rinaldog.com/uploads/1/3/0/7/130776716/2745920.pdf
    • http://files.awesomealgebra.org/uploads/1/3/0/7/130775970/917927.pdf
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/cover_letter_copy_and_paste_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/3551412441.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/cisco_lab_book_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/excel_combine_rows_from_multiple_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0438/6373/6475/files/mariam_khan_reporting_live_written_episode.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62374455636.pdf
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/safamiwu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/class_diagram_for_railway_reservation_system.pdf
    • https://cdn.shopify.com/s/files/1/0430/7766/4929/files/nubabukesoramoligevexoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/3531/1784/files/4453915737.pdf
    • https://cdn.shopify.com/s/files/1/0434/0105/2323/files/nunarolotetuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/aspidiotus_nerii.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_off000064e3.bin
559deff6827969da467e7640fae83e8d4e52bcca7f27fecffa5a6d120c87680d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64E3 5296 bytes
font_01_sfnt_off000076bf.bin
05daceb551124c644a359480ef84de973c3695c832a5ee68f39bf3ebf0e3f37c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76BF 10472 bytes

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