Malicious PDF — malware analysis report

Static analysis result for SHA-256 2052ef96f9799167…

MALICIOUS

PDF

46.8 KB Created: 2020-08-20 20:59:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4720b776d772e5fa41c7fd8f30efc23e SHA-1: 0b44b3d015b601dc6fdf5ef8caa1f0b1dcf74c71 SHA-256: 2052ef96f9799167d384a2b716f8e25a8272014b2e63dc8cf52f14a2febc705d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically `https://ttraff.cc/pify?keyword=bodybuilding+weekly+workout+plan+pdf`. This link is presented within the document body, disguised as a workout plan. The PDF also contains a mass external PDF link farm, with many links pointing to benign Shopify domains, likely for SEO manipulation. The primary malicious link redirects the user to potentially harmful 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.cc/pify?keyword=bodybuilding+weekly+workout+plan+pdf
    • http://files.goyurgroup.com/uploads/1/3/0/9/130969633/saxubosusebanubideli.pdf
    • http://files.cocoonparentingsupport.com/uploads/1/3/1/4/131407802/4624087.pdf
    • http://files.hprcolumbus.com/uploads/1/3/2/8/132814930/2581458.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/bibtex_file_to.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/runizu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3140/3413/files/kajaria_tiles_catalogue_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9655/6191/files/60432748262.pdf
    • https://cdn.shopify.com/s/files/1/0436/2531/6514/files/marketing_information_system_philip_kotler.pdf
    • https://cdn.shopify.com/s/files/1/0440/5886/9910/files/mometusutexutazojalut.pdf
    • https://cdn.shopify.com/s/files/1/0451/6714/9210/files/biochemistry_practical_manual_for_medical_students.pdf
    • https://cdn.shopify.com/s/files/1/0440/4844/9686/files/roskam_airplane_design.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_off00007857.bin
adfebeec7e43dceddb82949bb933de03cfd10206eb545e88a2f90a0db5ddd0d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7857 5476 bytes
font_01_sfnt_off00008b25.bin
5e6410d09b6fbdf61ce856da3842ef4107aacdd0f89d054ac4c1f92604899e5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B25 10480 bytes

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