Malicious PDF — malware analysis report

Static analysis result for SHA-256 4219b29485c25641…

MALICIOUS

PDF

84.3 KB Created: 2020-08-07 02:48:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 563ed9f10b187dc65c730a4ec16ce7cd SHA-1: 9a374e7e77e155bd220d0e1737791d27fef4bac2 SHA-256: 4219b29485c25641e07e1c7933f95e4a2608a4626845ca663e55b766b7b04613
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL points to 'ttraff.com', which is a known malicious redirector. The document body text, though heavily obfuscated, contains the same URL, suggesting the primary intent is to trick the user into clicking the malicious link.

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=atrocity+act+in+marathi+language+pdf+download
    • http://fulaliw.northsidecolumbia.org/uploads/1/3/2/7/132712615/c5eca.pdf
    • http://zodepuwir.aisigcsescience.com/uploads/1/3/2/6/132695329/zimerete.pdf
    • http://files.h72.org/uploads/1/3/2/6/132681513/zesumeveva-rugijixedot-pigexovenotit-tujoxubokitexo.pdf
    • http://suwolamag.ghssnamsai.com/uploads/1/3/1/4/131452883/kareboladibixitogi.pdf
    • http://files.allthingsclown.com/uploads/1/3/1/3/131380547/9c87b.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/small_file_jpg_to.pdf
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/50168762460.pdf
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/kilojerativapasefosup.pdf
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/28490166825.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1057/files/84432049417.pdf
    • https://cdn.shopify.com/s/files/1/0429/3702/4668/files/dementia_vs_delirium.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugogesobiwem.pdf
    • https://cdn.shopify.com/s/files/1/0437/7729/4485/files/a_transition_to_advanced_mathematics.pdf
    • https://cdn.shopify.com/s/files/1/0431/1079/3382/files/joredejozobowevato.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/71811540713.pdf
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/rezubodiladonunukijuliwa.pdf
    • https://cdn.shopify.com/s/files/1/0446/1009/3219/files/update_advanced_combat_tracker.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/52480634913.pdf
    • https://cdn.shopify.com/s/files/1/0432/3416/4893/files/xawepav.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_off00010af2.bin
de32c8aa31043705b260e5a1098fe39e4bb8b5c7739da2a8743611f4a0011a6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AF2 5576 bytes
font_01_sfnt_off00011de3.bin
44b9ee6609f5f48eea81be73c6a74f64a9ea7d48f6da48fcfbd458c594c814fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DE3 10952 bytes

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