Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbcea26f03c0a663…

MALICIOUS

PDF

35.0 KB Created: 2020-08-24 20:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76799289cac23a8d19274fc42173349b SHA-1: 2aab851636381a3ad3372e02b38183b922960551 SHA-256: bbcea26f03c0a6632b69813414bbbaa28d41821b93324cd84eb5c97660ccf9fe
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=i+love+you+flower+images', which is likely intended to redirect the user to a malicious site. The presence of a large number of external PDF links also suggests a link farm or SEO poisoning attempt to drive traffic to potentially malicious 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=i+love+you+flower+images
    • http://pezapim.clayimpressionspottery.com/uploads/1/3/1/6/131606289/16e90f23445ba.pdf
    • http://files.18crossroad.net/uploads/1/3/1/3/131384638/6828644.pdf
    • https://cdn.shopify.com/s/files/1/0434/6642/4470/files/nilinuxinejiwa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2292/5479/files/uialertcontroller_action_sheet_objective_c.pdf
    • https://cdn.shopify.com/s/files/1/0432/8482/4222/files/widalaxarutamul.pdf
    • https://cdn.shopify.com/s/files/1/0433/3004/4062/files/33526573338.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/96785568705.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8903/files/serilez.pdf
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/73986985256.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/84755120406.pdf
    • https://cdn.shopify.com/s/files/1/0430/7936/8858/files/zibazatinobaxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/caucasian_chalk_circle_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/introduction_to_computing_systems_solutions_manual.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_off000040c1.bin
4a74732a0c14b7e3aefdfd320e6f219132cf4b30143d9a0f003f601dd0488cdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40C1 4972 bytes
font_01_sfnt_off000051ca.bin
1536ba0806ba68fd4d8fddce87181cbe6babc5ac523bc4dc55e77c04fcce2c18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51CA 9392 bytes
font_02_sfnt_off00007190.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7190 4324 bytes

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