Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d7ffc1e1b3f1af2…

MALICIOUS

PDF

39.8 KB Created: 2020-08-26 19:11:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b3f32244b15b7ec451b265100001fcb SHA-1: d22492b9de05404d5d06e3b320ab380d0f526e81 SHA-256: 3d7ffc1e1b3f1af25bb99e26453511221f23d8bb71c8923ee32484c70e1b2574
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. This suggests a phishing or scam attempt, likely to lead the user to malicious content or a further phishing page. The document body itself is heavily obfuscated but contains the malicious URL. No scripts were extracted from this sample.

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=bus+driver+gameplay
    • http://selilalu.emirhrnjic.com/uploads/1/3/2/7/132710694/e4b60f01f253.pdf
    • http://files.countytownsingers.com/uploads/1/3/0/8/130813111/6160974.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/2208913343.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/system_of_inequalities_word_problems_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/3096/2588/files/download_annotator_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/zalerojuwapebojedu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/php_ini_file_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/80134332527.pdf
    • https://cdn.shopify.com/s/files/1/0432/3888/3495/files/52806562380.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/operational_amplifiers_theory_and_design.pdf
    • https://cdn.shopify.com/s/files/1/0440/4976/0406/files/gu_medical_abbreviation.pdf
    • https://cdn.shopify.com/s/files/1/0428/6870/3398/files/all_souls_day_prayer.pdf
    • https://cdn.shopify.com/s/files/1/0428/6935/8758/files/english_grammar_worksheet_grade_4.pdf
    • https://cdn.shopify.com/s/files/1/0433/3384/5150/files/banelarowitimiwowamapo.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_off00005ddd.bin
098c567439dc05489001d95b6d7591e1cb4cc646749cd275664fcb06989888b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDD 5492 bytes
font_01_sfnt_off0000707a.bin
502528aa78fc9d974bf628802c3389e8bb37c311d45d9475f3030ccd0e328ce1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x707A 10040 bytes

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