Malicious PDF — malware analysis report

Static analysis result for SHA-256 a982f4fe44bd0266…

MALICIOUS

PDF

44.0 KB Created: 2020-08-31 09:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a5b7983f0042126e181579e22bb17ec SHA-1: 5926eb45426e8c11e09d815f52e64b13eac6d438 SHA-256: a982f4fe44bd0266e0ad12b868ea692d023bba9347b1ad509dd03a222966e095
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used for SEO spam or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/wix?keyword=pacific+coast+athletic+conference'. While many other links point to benign Shopify domains, the presence of the malicious redirector is a strong indicator of malicious intent. 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.cc/wix?keyword=pacific+coast+athletic+conference
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/steppenwolf_born_to_be_wild_tab.pdf
    • https://cdn.shopify.com/s/files/1/0434/7333/8533/files/12585880185.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8274/files/rick_ross_hold_me_back.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0797/files/vabinugogokasekelojomi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2981/5711/files/42829770333.pdf
    • https://static.usrfiles.com/ugd/6c98bc_79e51d7e616e48f79a7dc1b5b64551e1.pdf
    • https://static.usrfiles.com/ugd/b7082a_c06d8320ad964779ad04fc2ce2301a3f.pdf
    • https://static.usrfiles.com/ugd/fb5067_4168835484a8449eabe7dfcba48d7a41.pdf
    • https://static.usrfiles.com/ugd/b8c837_0265392217ca4d0c9113f8cf1b3a9dd3.pdf
    • https://static.usrfiles.com/ugd/cafc24_02d635edc38e4bd997737b52f9860fba.pdf
    • https://static.usrfiles.com/ugd/d63aaf_3104f4edba6347939d442b9f0a9ed8cf.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_off00006273.bin
6f2c86feda9cd193bb4ed9072d1706187157644b3c42e1aa10299012b490102a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6273 4756 bytes
font_01_sfnt_off0000727f.bin
8f065e853042e461e9353999cfd4a4a41de3206dd83d19199c9c48cea8155b10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x727F 10204 bytes
font_02_sfnt_off00009565.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9565 4324 bytes

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