Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e0594a2e432239…

MALICIOUS

PDF

46.7 KB Created: 2020-08-06 14:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c45ca100f71d25d1c441b8f3206614f SHA-1: 95875c2a54577606d4b4490903911f935c4db008 SHA-256: e2e0594a2e4322395a7638df48568d71cd1e4abf097ab36eaad38ebe177534c6
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it is a malicious redirector link, pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to PDFs hosted on domains like cdn.shopify.com. The embedded document body text, though partially corrupted, contains the target URL and appears to be a lure for further malicious activity. 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/wb?keyword=td%20160/100%20silent%20manual
    • http://files.chicagostatechamber.org/uploads/1/3/1/6/131606815/mofebibetaropuzonalu.pdf
    • http://files.able-disabled.com/uploads/1/3/1/1/131164081/molewotenulimepis.pdf
    • http://files.jamesapartments.cz/uploads/1/3/2/6/132680986/4708390.pdf
    • http://files.iyengaryoga-concord.com/uploads/1/3/2/7/132711954/sabitorimewad.pdf
    • http://files.xdesign4u.com/uploads/1/3/1/0/131069887/miwebew.pdf
    • https://cdn.shopify.com/s/files/1/0437/8106/2817/files/95151136965.pdf
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/sixijotirinomutidu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4288/0160/files/2268513343.pdf
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/43382287769.pdf
    • https://cdn.shopify.com/s/files/1/0434/2457/9751/files/cathodic_protection_principle.pdf
    • https://cdn.shopify.com/s/files/1/0431/6269/7894/files/48394793399.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jatebilebasa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/dutimolepa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6379/5096/files/zafezenakiden.pdf
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/94871455720.pdf
    • https://cdn.shopify.com/s/files/1/0428/8351/4527/files/jatokawif.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/dutesulake.pdf
    • https://cdn.shopify.com/s/files/1/0433/8548/7516/files/let_it_go_piano_sheet_free.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000604f.bin
eb00600a98e8101c50fcf12f4e8e0cf6ed4ee2a04998f47fd1fd13f5b1b62a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x604F 3348 bytes
font_01_sfnt_off00006c6b.bin
395c3c73e1a749da07dd6d2ded145d899fdbd0a8af4b4488ec20a656093b5794		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6B 4980 bytes
font_02_sfnt_off00007d3a.bin
e10a5e4068540ebad86df8245043e5f087d370f62c396483b024d0032da34bba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3A 10004 bytes
font_03_sfnt_off00009f71.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F71 4324 bytes

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