Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce8dfef5aa909f3c…

MALICIOUS

PDF

43.2 KB Created: 2020-08-25 11:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9057a80fa123b37f403533208bd81b7d SHA-1: 5fba08d410bd28e5095a4ad94cc92cc451f246f0 SHA-256: ce8dfef5aa909f3cab12bb6dcb2af9b88b99e911d0fee48b294ff0e75d5df8f0
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=birthday+invitation+cards+templates+word'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or SEO spam. The presence of a 'download button' heuristic further supports the lure mechanism. No scripts were extracted, but the document body and heuristics strongly indicate a phishing or redirection attack.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=birthday+invitation+cards+templates+word
    • http://files.santebarleyphils.com/uploads/1/3/1/4/131438453/5ae6d81b9.pdf
    • http://files.tomdeprisco.com/uploads/1/3/0/8/130874110/mofamunadomuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/4837/8274/files/femaxozubibepawikedidiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/anti_cheat_counter_strike_1._6.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/epilepsy_causes_and_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/72814466012.pdf
    • https://cdn.shopify.com/s/files/1/0440/1030/7749/files/level_32_answer_escape_room.pdf
    • https://cdn.shopify.com/s/files/1/0432/3776/9383/files/whirlpool_gold_dishwasher_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/0925/9158/files/dnd_fighter.pdf
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/walexexorig.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_off00006b46.bin
5f7c67e5a4769eb4463bfe3876b9aed558d13caf01fb7ed9c4066307a899b1f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B46 5616 bytes
font_01_sfnt_off00007e4e.bin
c5b167997db82cb3280df3410c911cfbeb346c285334f6012e6e1f384bf9fde2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4E 9920 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.