Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a3a4a8b158c6691…

MALICIOUS

PDF

43.0 KB Created: 2020-08-22 12:44:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 436458150ae271075635325994dc0930 SHA-1: 13308d8e99308bc056459285f8b44f9878f5ea0b SHA-256: 3a3a4a8b158c66912719dbf912eedf7287656f1bd68f3936fc2309e02789cdd3
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=bike+race+hollywood+movie'. This indicates a phishing or scam attempt designed to redirect users to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous shopify.com links suggests an attempt to blend in with legitimate content while hosting malicious redirects.

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=bike+race+hollywood+movie
    • http://files.by-my-standards.com/uploads/1/3/0/8/130813364/17fc0.pdf
    • http://files.clintconradauthor.com/uploads/1/3/1/4/131437246/9df487b9.pdf
    • http://zufuwutuf.happytails.care/uploads/1/3/1/4/131455734/342f70c4.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/analytical_essay_graphic_organizer.pdf
    • https://cdn.shopify.com/s/files/1/0433/0301/0468/files/wudidewifupadez.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/32896334019.pdf
    • https://cdn.shopify.com/s/files/1/0434/2572/6614/files/accreditation_process_guide_for_hospitals.pdf
    • https://cdn.shopify.com/s/files/1/0433/6615/4394/files/hebrew_and_greek_bible_dictionary_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6206/files/44889723739.pdf
    • https://cdn.shopify.com/s/files/1/0441/0313/9480/files/estadistica_ciencias_sociales.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/medical_laboratory_methods_and_tests.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_off00006a76.bin
b0752a028db891de5b6fbe3ee448e9e8e93b74a413b29ee3be4e4d238fc9531a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A76 5368 bytes
font_01_sfnt_off00007ca3.bin
52f42ebfcb926adaa4ec2a701c40c4ef51151d2a7f0c03fe3b8b5b423b3f883b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA3 10292 bytes

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